./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd --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 102266cd9873aec631509424dd889c2e48b781667738cfaa50930481a41b1570 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:27:41,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:27:41,788 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:27:41,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:27:41,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:27:41,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:27:41,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:27:41,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:27:41,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:27:41,863 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:27:41,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:27:41,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:27:41,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:27:41,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:27:41,864 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:27:41,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:27:41,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:27:41,866 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:27:41,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:27:41,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:27:41,869 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:27:41,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:27:41,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:27:41,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:27:41,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:27:41,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:27:41,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:27:41,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:27:41,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:27:41,871 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:27:41,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:27:41,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:27:41,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:27:41,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:27:41,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:27:41,872 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_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd 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 -> 102266cd9873aec631509424dd889c2e48b781667738cfaa50930481a41b1570 [2024-11-13 13:27:42,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:27:42,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:27:42,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:27:42,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:27:42,321 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:27:42,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/email_spec27_product13.cil.c Unable to find full path for "g++" [2024-11-13 13:27:44,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:27:45,186 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:27:45,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/sv-benchmarks/c/product-lines/email_spec27_product13.cil.c [2024-11-13 13:27:45,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/data/bc0a258dc/40890982aef04398a0c0933d75f45ae3/FLAGb02688679 [2024-11-13 13:27:45,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/data/bc0a258dc/40890982aef04398a0c0933d75f45ae3 [2024-11-13 13:27:45,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:27:45,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:27:45,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:27:45,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:27:45,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:27:45,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:45" (1/1) ... [2024-11-13 13:27:45,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12aa6c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:45, skipping insertion in model container [2024-11-13 13:27:45,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:45" (1/1) ... [2024-11-13 13:27:45,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:27:46,300 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_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/sv-benchmarks/c/product-lines/email_spec27_product13.cil.c[61687,61700] [2024-11-13 13:27:46,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:27:46,332 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:27:46,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-13 13:27:46,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [66] [2024-11-13 13:27:46,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2024-11-13 13:27:46,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [481] [2024-11-13 13:27:46,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [588] [2024-11-13 13:27:46,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [855] [2024-11-13 13:27:46,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1930] [2024-11-13 13:27:46,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2204] [2024-11-13 13:27:46,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2236] [2024-11-13 13:27:46,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2637] [2024-11-13 13:27:46,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2850] [2024-11-13 13:27:46,558 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_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/sv-benchmarks/c/product-lines/email_spec27_product13.cil.c[61687,61700] [2024-11-13 13:27:46,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:27:46,608 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:27:46,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46 WrapperNode [2024-11-13 13:27:46,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:27:46,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:27:46,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:27:46,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:27:46,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,751 INFO L138 Inliner]: procedures = 124, calls = 178, calls flagged for inlining = 52, calls inlined = 44, statements flattened = 824 [2024-11-13 13:27:46,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:27:46,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:27:46,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:27:46,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:27:46,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,838 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]. [2024-11-13 13:27:46,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:27:46,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:27:46,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:27:46,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:27:46,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (1/1) ... [2024-11-13 13:27:46,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:27:46,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:46,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:46,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:27:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 13:27:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 13:27:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 13:27:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 13:27:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-13 13:27:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-13 13:27:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 13:27:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 13:27:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-13 13:27:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-13 13:27:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 13:27:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 13:27:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 13:27:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 13:27:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 13:27:47,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 13:27:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:27:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-13 13:27:47,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-13 13:27:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 13:27:47,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 13:27:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 13:27:47,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 13:27:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 13:27:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 13:27:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-13 13:27:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-13 13:27:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-13 13:27:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-13 13:27:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 13:27:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 13:27:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 13:27:47,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 13:27:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:27:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:27:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 13:27:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 13:27:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 13:27:47,027 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 13:27:47,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:27:47,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:27:47,311 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:27:47,313 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:27:48,630 INFO L? ?]: Removed 368 outVars from TransFormulas that were not future-live. [2024-11-13 13:27:48,631 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:27:48,668 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:27:48,671 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:27:48,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:48 BoogieIcfgContainer [2024-11-13 13:27:48,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:27:48,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:27:48,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:27:48,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:27:48,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:27:45" (1/3) ... [2024-11-13 13:27:48,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa9061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:48, skipping insertion in model container [2024-11-13 13:27:48,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:46" (2/3) ... [2024-11-13 13:27:48,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa9061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:48, skipping insertion in model container [2024-11-13 13:27:48,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:48" (3/3) ... [2024-11-13 13:27:48,690 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product13.cil.c [2024-11-13 13:27:48,753 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:27:48,760 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product13.cil.c that has 18 procedures, 278 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:27:48,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:27:48,889 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;@26cc15f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:27:48,889 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:27:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 278 states, 221 states have (on average 1.5475113122171946) internal successors, (342), 223 states have internal predecessors, (342), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:27:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:27:48,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:48,926 INFO L215 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] [2024-11-13 13:27:48,927 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:48,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:48,932 INFO L85 PathProgramCache]: Analyzing trace with hash -153222236, now seen corresponding path program 1 times [2024-11-13 13:27:48,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:48,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20254874] [2024-11-13 13:27:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:48,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:27:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:27:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:27:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:27:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:27:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:27:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 13:27:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 13:27:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 13:27:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 13:27:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:27:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:27:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 13:27:50,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:50,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20254874] [2024-11-13 13:27:50,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20254874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:50,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36749518] [2024-11-13 13:27:50,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:50,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:50,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:50,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:50,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:27:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 13:27:50,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:51,011 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:27:51,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:27:51,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36749518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:51,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:51,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-11-13 13:27:51,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244737294] [2024-11-13 13:27:51,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:51,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:27:51,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:51,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:27:51,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:27:51,047 INFO L87 Difference]: Start difference. First operand has 278 states, 221 states have (on average 1.5475113122171946) internal successors, (342), 223 states have internal predecessors, (342), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2024-11-13 13:27:51,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:51,103 INFO L93 Difference]: Finished difference Result 407 states and 598 transitions. [2024-11-13 13:27:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:27:51,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 105 [2024-11-13 13:27:51,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:51,119 INFO L225 Difference]: With dead ends: 407 [2024-11-13 13:27:51,119 INFO L226 Difference]: Without dead ends: 271 [2024-11-13 13:27:51,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:27:51,128 INFO L432 NwaCegarLoop]: 414 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, 414 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 [2024-11-13 13:27:51,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:27:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-13 13:27:51,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-13 13:27:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 215 states have (on average 1.5395348837209302) internal successors, (331), 216 states have internal predecessors, (331), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-13 13:27:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 406 transitions. [2024-11-13 13:27:51,243 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 406 transitions. Word has length 105 [2024-11-13 13:27:51,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:27:51,247 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 406 transitions. [2024-11-13 13:27:51,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2024-11-13 13:27:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 406 transitions. [2024-11-13 13:27:51,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 13:27:51,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:51,261 INFO L215 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] [2024-11-13 13:27:51,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:27:51,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 13:27:51,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:51,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:51,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1630114089, now seen corresponding path program 1 times [2024-11-13 13:27:51,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:51,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452777593] [2024-11-13 13:27:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:51,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:27:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:27:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:27:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:27:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:27:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 13:27:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:27:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:51,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:27:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:52,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:27:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:52,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 13:27:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:52,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:27:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:52,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:27:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 13:27:52,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:52,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452777593] [2024-11-13 13:27:52,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452777593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:52,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953889771] [2024-11-13 13:27:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:52,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:52,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:52,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:52,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:27:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:52,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:27:52,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:27:52,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:27:52,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953889771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:52,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:52,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-13 13:27:52,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891679827] [2024-11-13 13:27:52,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:52,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:27:52,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:52,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:27:52,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:27:52,683 INFO L87 Difference]: Start difference. First operand 271 states and 406 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-13 13:27:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:52,766 INFO L93 Difference]: Finished difference Result 397 states and 579 transitions. [2024-11-13 13:27:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:27:52,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 106 [2024-11-13 13:27:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:52,774 INFO L225 Difference]: With dead ends: 397 [2024-11-13 13:27:52,774 INFO L226 Difference]: Without dead ends: 274 [2024-11-13 13:27:52,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:27:52,777 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 1 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 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 [2024-11-13 13:27:52,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:27:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-13 13:27:52,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 273. [2024-11-13 13:27:52,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.5345622119815667) internal successors, (333), 218 states have internal predecessors, (333), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-13 13:27:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 408 transitions. [2024-11-13 13:27:52,808 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 408 transitions. Word has length 106 [2024-11-13 13:27:52,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:27:52,809 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 408 transitions. [2024-11-13 13:27:52,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-13 13:27:52,809 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 408 transitions. [2024-11-13 13:27:52,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 13:27:52,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:52,819 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 13:27:52,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:27:53,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:53,019 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:53,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:53,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1723141088, now seen corresponding path program 1 times [2024-11-13 13:27:53,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:53,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449376711] [2024-11-13 13:27:53,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:53,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:27:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:27:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:27:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:27:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:27:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 13:27:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:27:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:27:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 13:27:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:27:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:27:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 13:27:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:27:53,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449376711] [2024-11-13 13:27:53,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449376711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568311624] [2024-11-13 13:27:53,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:53,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:53,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:53,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:53,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:27:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:27:54,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:27:54,061 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:27:54,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568311624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:54,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:54,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-13 13:27:54,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664840819] [2024-11-13 13:27:54,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:54,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:27:54,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:54,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:27:54,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:27:54,064 INFO L87 Difference]: Start difference. First operand 273 states and 408 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:27:54,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:54,115 INFO L93 Difference]: Finished difference Result 571 states and 867 transitions. [2024-11-13 13:27:54,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:27:54,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 112 [2024-11-13 13:27:54,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:54,123 INFO L225 Difference]: With dead ends: 571 [2024-11-13 13:27:54,123 INFO L226 Difference]: Without dead ends: 325 [2024-11-13 13:27:54,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:27:54,130 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 99 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 779 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 [2024-11-13 13:27:54,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 779 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:27:54,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-13 13:27:54,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 317. [2024-11-13 13:27:54,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 250 states have (on average 1.548) internal successors, (387), 251 states have internal predecessors, (387), 49 states have call successors, (49), 17 states have call predecessors, (49), 17 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 13:27:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2024-11-13 13:27:54,183 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 112 [2024-11-13 13:27:54,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:27:54,185 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2024-11-13 13:27:54,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:27:54,186 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2024-11-13 13:27:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 13:27:54,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:54,193 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 13:27:54,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:27:54,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:54,398 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:54,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash -551747079, now seen corresponding path program 1 times [2024-11-13 13:27:54,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:54,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276496897] [2024-11-13 13:27:54,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:54,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:27:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:27:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:27:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:27:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:27:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 13:27:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 13:27:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 13:27:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 13:27:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:27:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:27:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:27:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:27:54,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:54,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276496897] [2024-11-13 13:27:54,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276496897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:54,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835439635] [2024-11-13 13:27:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:54,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:54,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:54,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:27:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:55,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:27:55,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:27:55,424 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:27:55,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835439635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:55,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:55,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-13 13:27:55,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857053253] [2024-11-13 13:27:55,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:55,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:27:55,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:55,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:27:55,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:27:55,428 INFO L87 Difference]: Start difference. First operand 317 states and 484 transitions. Second operand has 5 states, 4 states have (on average 19.5) 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), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:27:55,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:55,568 INFO L93 Difference]: Finished difference Result 625 states and 958 transitions. [2024-11-13 13:27:55,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:27:55,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) 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), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-13 13:27:55,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:55,575 INFO L225 Difference]: With dead ends: 625 [2024-11-13 13:27:55,575 INFO L226 Difference]: Without dead ends: 319 [2024-11-13 13:27:55,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:27:55,580 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 2 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:27:55,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1581 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:27:55,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-13 13:27:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2024-11-13 13:27:55,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 251 states have (on average 1.545816733067729) internal successors, (388), 253 states have internal predecessors, (388), 49 states have call successors, (49), 17 states have call predecessors, (49), 18 states have return successors, (50), 48 states have call predecessors, (50), 48 states have call successors, (50) [2024-11-13 13:27:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 487 transitions. [2024-11-13 13:27:55,634 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 487 transitions. Word has length 113 [2024-11-13 13:27:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:27:55,636 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 487 transitions. [2024-11-13 13:27:55,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) 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), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:27:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 487 transitions. [2024-11-13 13:27:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:27:55,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:55,644 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 13:27:55,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:27:55,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:55,845 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:55,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1537197186, now seen corresponding path program 1 times [2024-11-13 13:27:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:55,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534511398] [2024-11-13 13:27:55,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:27:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:27:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:27:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 13:27:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 13:27:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:27:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:27:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 13:27:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:27:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:27:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:27:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:27:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,338 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 13:27:56,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:56,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534511398] [2024-11-13 13:27:56,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534511398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:56,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335063592] [2024-11-13 13:27:56,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:56,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:56,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:56,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:56,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:27:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:56,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:27:56,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:27:56,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:27:56,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335063592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:56,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:56,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-13 13:27:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719109059] [2024-11-13 13:27:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:56,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:27:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:56,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:27:56,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:27:56,948 INFO L87 Difference]: Start difference. First operand 319 states and 487 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-11-13 13:27:57,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:57,085 INFO L93 Difference]: Finished difference Result 627 states and 963 transitions. [2024-11-13 13:27:57,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:27:57,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 114 [2024-11-13 13:27:57,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:57,091 INFO L225 Difference]: With dead ends: 627 [2024-11-13 13:27:57,093 INFO L226 Difference]: Without dead ends: 321 [2024-11-13 13:27:57,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:27:57,096 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 2 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1567 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 [2024-11-13 13:27:57,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1567 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:27:57,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-13 13:27:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-11-13 13:27:57,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 255 states have internal predecessors, (389), 49 states have call successors, (49), 17 states have call predecessors, (49), 19 states have return successors, (55), 48 states have call predecessors, (55), 48 states have call successors, (55) [2024-11-13 13:27:57,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 493 transitions. [2024-11-13 13:27:57,128 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 493 transitions. Word has length 114 [2024-11-13 13:27:57,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:27:57,128 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 493 transitions. [2024-11-13 13:27:57,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-11-13 13:27:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 493 transitions. [2024-11-13 13:27:57,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 13:27:57,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:57,133 INFO L215 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] [2024-11-13 13:27:57,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:27:57,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:57,338 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:57,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1657823103, now seen corresponding path program 1 times [2024-11-13 13:27:57,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:57,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037150958] [2024-11-13 13:27:57,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:57,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:27:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:27:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:27:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:27:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:27:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 13:27:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:27:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:27:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:27:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:27:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:27:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 13:27:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:27:57,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:57,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037150958] [2024-11-13 13:27:57,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037150958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:57,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:27:57,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:27:57,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55977183] [2024-11-13 13:27:57,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:57,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:27:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:57,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:27:57,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:27:57,717 INFO L87 Difference]: Start difference. First operand 321 states and 493 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:27:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:59,990 INFO L93 Difference]: Finished difference Result 677 states and 1045 transitions. [2024-11-13 13:27:59,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:27:59,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 5 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 [2024-11-13 13:27:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:59,995 INFO L225 Difference]: With dead ends: 677 [2024-11-13 13:27:59,996 INFO L226 Difference]: Without dead ends: 379 [2024-11-13 13:27:59,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:28:00,000 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 638 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:00,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 926 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 13:28:00,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-13 13:28:00,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 321. [2024-11-13 13:28:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 255 states have internal predecessors, (389), 49 states have call successors, (49), 17 states have call predecessors, (49), 19 states have return successors, (54), 48 states have call predecessors, (54), 48 states have call successors, (54) [2024-11-13 13:28:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 492 transitions. [2024-11-13 13:28:00,063 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 492 transitions. Word has length 115 [2024-11-13 13:28:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:00,064 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 492 transitions. [2024-11-13 13:28:00,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:28:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 492 transitions. [2024-11-13 13:28:00,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 13:28:00,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:00,069 INFO L215 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, 1, 1] [2024-11-13 13:28:00,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:28:00,070 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:00,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:00,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1851137188, now seen corresponding path program 2 times [2024-11-13 13:28:00,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:00,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278746734] [2024-11-13 13:28:00,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:00,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:28:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 13:28:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:28:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 13:28:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 13:28:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:28:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 13:28:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 13:28:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:28:00,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:00,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278746734] [2024-11-13 13:28:00,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278746734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:00,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:00,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:28:00,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234245443] [2024-11-13 13:28:00,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:00,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:28:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:00,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:28:00,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:28:00,437 INFO L87 Difference]: Start difference. First operand 321 states and 492 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:28:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:02,591 INFO L93 Difference]: Finished difference Result 679 states and 1048 transitions. [2024-11-13 13:28:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:28:02,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 5 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 116 [2024-11-13 13:28:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:02,596 INFO L225 Difference]: With dead ends: 679 [2024-11-13 13:28:02,597 INFO L226 Difference]: Without dead ends: 381 [2024-11-13 13:28:02,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:28:02,599 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 635 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:02,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 926 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 13:28:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-13 13:28:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 323. [2024-11-13 13:28:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 253 states have (on average 1.541501976284585) internal successors, (390), 257 states have internal predecessors, (390), 49 states have call successors, (49), 17 states have call predecessors, (49), 20 states have return successors, (56), 48 states have call predecessors, (56), 48 states have call successors, (56) [2024-11-13 13:28:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 495 transitions. [2024-11-13 13:28:02,669 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 495 transitions. Word has length 116 [2024-11-13 13:28:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:02,671 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 495 transitions. [2024-11-13 13:28:02,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:28:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 495 transitions. [2024-11-13 13:28:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 13:28:02,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:02,676 INFO L215 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, 1, 1] [2024-11-13 13:28:02,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:28:02,677 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:02,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:02,677 INFO L85 PathProgramCache]: Analyzing trace with hash 610128614, now seen corresponding path program 1 times [2024-11-13 13:28:02,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:02,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084363011] [2024-11-13 13:28:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:02,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:02,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:02,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:02,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:02,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:02,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:02,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 13:28:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 13:28:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 13:28:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 13:28:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 13:28:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 13:28:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 13:28:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 13:28:03,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:03,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084363011] [2024-11-13 13:28:03,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084363011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:03,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:03,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 13:28:03,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563963281] [2024-11-13 13:28:03,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:03,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:28:03,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:03,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:28:03,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:28:03,077 INFO L87 Difference]: Start difference. First operand 323 states and 495 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:28:06,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:06,093 INFO L93 Difference]: Finished difference Result 677 states and 1043 transitions. [2024-11-13 13:28:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:28:06,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 117 [2024-11-13 13:28:06,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:06,099 INFO L225 Difference]: With dead ends: 677 [2024-11-13 13:28:06,099 INFO L226 Difference]: Without dead ends: 381 [2024-11-13 13:28:06,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:28:06,102 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 638 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:06,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1329 Invalid, 2814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [162 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:28:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-13 13:28:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 323. [2024-11-13 13:28:06,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 253 states have (on average 1.541501976284585) internal successors, (390), 257 states have internal predecessors, (390), 49 states have call successors, (49), 17 states have call predecessors, (49), 20 states have return successors, (55), 48 states have call predecessors, (55), 48 states have call successors, (55) [2024-11-13 13:28:06,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 494 transitions. [2024-11-13 13:28:06,170 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 494 transitions. Word has length 117 [2024-11-13 13:28:06,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:06,171 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 494 transitions. [2024-11-13 13:28:06,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:28:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2024-11-13 13:28:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:28:06,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:06,176 INFO L215 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, 1, 1, 1, 1] [2024-11-13 13:28:06,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:28:06,177 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:06,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:06,177 INFO L85 PathProgramCache]: Analyzing trace with hash 637796227, now seen corresponding path program 2 times [2024-11-13 13:28:06,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:06,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110307990] [2024-11-13 13:28:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:06,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:28:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:28:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 13:28:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 13:28:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:28:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 13:28:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 13:28:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 13:28:06,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:06,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110307990] [2024-11-13 13:28:06,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110307990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:06,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:06,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 13:28:06,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462525173] [2024-11-13 13:28:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:06,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:28:06,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:06,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:28:06,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:28:06,584 INFO L87 Difference]: Start difference. First operand 323 states and 494 transitions. Second operand has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:28:09,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:09,588 INFO L93 Difference]: Finished difference Result 679 states and 1049 transitions. [2024-11-13 13:28:09,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:28:09,589 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 118 [2024-11-13 13:28:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:09,593 INFO L225 Difference]: With dead ends: 679 [2024-11-13 13:28:09,593 INFO L226 Difference]: Without dead ends: 383 [2024-11-13 13:28:09,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:28:09,595 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 635 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:09,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1330 Invalid, 2846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:28:09,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-13 13:28:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 325. [2024-11-13 13:28:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 254 states have (on average 1.5393700787401574) internal successors, (391), 259 states have internal predecessors, (391), 49 states have call successors, (49), 17 states have call predecessors, (49), 21 states have return successors, (60), 48 states have call predecessors, (60), 48 states have call successors, (60) [2024-11-13 13:28:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 500 transitions. [2024-11-13 13:28:09,644 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 500 transitions. Word has length 118 [2024-11-13 13:28:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:09,644 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 500 transitions. [2024-11-13 13:28:09,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:28:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 500 transitions. [2024-11-13 13:28:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 13:28:09,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:09,649 INFO L215 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, 1, 1, 1, 1] [2024-11-13 13:28:09,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:28:09,650 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:09,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1535786059, now seen corresponding path program 1 times [2024-11-13 13:28:09,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:09,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691823803] [2024-11-13 13:28:09,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:09,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 13:28:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 13:28:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 13:28:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:28:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:28:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:28:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:28:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:09,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:09,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691823803] [2024-11-13 13:28:09,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691823803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:28:09,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518957760] [2024-11-13 13:28:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:09,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:28:09,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:28:09,938 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:28:09,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:28:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:10,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:28:10,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:28:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:10,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:28:10,536 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:10,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518957760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:28:10,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:28:10,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-11-13 13:28:10,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760566850] [2024-11-13 13:28:10,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:28:10,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:28:10,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:28:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:10,540 INFO L87 Difference]: Start difference. First operand 325 states and 500 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 13:28:12,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:12,453 INFO L93 Difference]: Finished difference Result 833 states and 1347 transitions. [2024-11-13 13:28:12,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:28:12,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 119 [2024-11-13 13:28:12,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:12,461 INFO L225 Difference]: With dead ends: 833 [2024-11-13 13:28:12,461 INFO L226 Difference]: Without dead ends: 710 [2024-11-13 13:28:12,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:28:12,463 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 1150 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:12,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 1185 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 13:28:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-13 13:28:12,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 628. [2024-11-13 13:28:12,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 493 states have (on average 1.6004056795131847) internal successors, (789), 498 states have internal predecessors, (789), 113 states have call successors, (113), 17 states have call predecessors, (113), 21 states have return successors, (134), 112 states have call predecessors, (134), 112 states have call successors, (134) [2024-11-13 13:28:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 1036 transitions. [2024-11-13 13:28:12,525 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 1036 transitions. Word has length 119 [2024-11-13 13:28:12,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:12,526 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 1036 transitions. [2024-11-13 13:28:12,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 13:28:12,527 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 1036 transitions. [2024-11-13 13:28:12,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 13:28:12,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:12,533 INFO L215 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] [2024-11-13 13:28:12,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 13:28:12,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c633a-f2b9-48f0-965d-5a38ef73fc91/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:28:12,734 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:12,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:12,734 INFO L85 PathProgramCache]: Analyzing trace with hash -982948248, now seen corresponding path program 1 times [2024-11-13 13:28:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:12,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207375519] [2024-11-13 13:28:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:12,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 13:28:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 13:28:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:28:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:28:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 13:28:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:28:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:28:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:12,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:12,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207375519] [2024-11-13 13:28:12,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207375519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:12,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:12,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:12,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631448176] [2024-11-13 13:28:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:12,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:12,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:12,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:12,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:12,922 INFO L87 Difference]: Start difference. First operand 628 states and 1036 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:14,396 INFO L93 Difference]: Finished difference Result 1554 states and 2626 transitions. [2024-11-13 13:28:14,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:14,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 5 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 [2024-11-13 13:28:14,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:14,405 INFO L225 Difference]: With dead ends: 1554 [2024-11-13 13:28:14,406 INFO L226 Difference]: Without dead ends: 994 [2024-11-13 13:28:14,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:14,410 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 731 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:14,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 672 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:28:14,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-13 13:28:14,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 928. [2024-11-13 13:28:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 729 states have (on average 1.6104252400548698) internal successors, (1174), 734 states have internal predecessors, (1174), 177 states have call successors, (177), 17 states have call predecessors, (177), 21 states have return successors, (208), 176 states have call predecessors, (208), 176 states have call successors, (208) [2024-11-13 13:28:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1559 transitions. [2024-11-13 13:28:14,544 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1559 transitions. Word has length 125 [2024-11-13 13:28:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:14,544 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1559 transitions. [2024-11-13 13:28:14,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1559 transitions. [2024-11-13 13:28:14,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 13:28:14,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:14,554 INFO L215 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] [2024-11-13 13:28:14,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:28:14,554 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:14,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:14,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1786521294, now seen corresponding path program 1 times [2024-11-13 13:28:14,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:14,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000865332] [2024-11-13 13:28:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:14,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:28:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:28:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:28:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:28:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:28:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:28:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-13 13:28:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:14,727 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:14,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:14,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000865332] [2024-11-13 13:28:14,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000865332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:14,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:14,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:14,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033326458] [2024-11-13 13:28:14,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:14,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:14,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:14,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:14,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:14,729 INFO L87 Difference]: Start difference. First operand 928 states and 1559 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:16,310 INFO L93 Difference]: Finished difference Result 2269 states and 3871 transitions. [2024-11-13 13:28:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:16,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 5 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 [2024-11-13 13:28:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:16,322 INFO L225 Difference]: With dead ends: 2269 [2024-11-13 13:28:16,322 INFO L226 Difference]: Without dead ends: 1462 [2024-11-13 13:28:16,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:16,327 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 729 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:16,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 647 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 13:28:16,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2024-11-13 13:28:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1396. [2024-11-13 13:28:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1102 states have (on average 1.616152450090744) internal successors, (1781), 1107 states have internal predecessors, (1781), 272 states have call successors, (272), 17 states have call predecessors, (272), 21 states have return successors, (303), 271 states have call predecessors, (303), 271 states have call successors, (303) [2024-11-13 13:28:16,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2356 transitions. [2024-11-13 13:28:16,437 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2356 transitions. Word has length 126 [2024-11-13 13:28:16,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:16,437 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 2356 transitions. [2024-11-13 13:28:16,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2356 transitions. [2024-11-13 13:28:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 13:28:16,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:16,447 INFO L215 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] [2024-11-13 13:28:16,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:28:16,447 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:16,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:16,447 INFO L85 PathProgramCache]: Analyzing trace with hash 94887690, now seen corresponding path program 1 times [2024-11-13 13:28:16,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:16,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622021571] [2024-11-13 13:28:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 13:28:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:28:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:28:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:28:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:28:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 13:28:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-13 13:28:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:16,588 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:16,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:16,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622021571] [2024-11-13 13:28:16,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622021571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:16,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:16,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:16,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885080335] [2024-11-13 13:28:16,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:16,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:16,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:16,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:16,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:16,591 INFO L87 Difference]: Start difference. First operand 1396 states and 2356 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:18,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:18,276 INFO L93 Difference]: Finished difference Result 3316 states and 5712 transitions. [2024-11-13 13:28:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:18,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 5 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 [2024-11-13 13:28:18,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:18,295 INFO L225 Difference]: With dead ends: 3316 [2024-11-13 13:28:18,295 INFO L226 Difference]: Without dead ends: 2166 [2024-11-13 13:28:18,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:18,303 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 727 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:18,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 646 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 13:28:18,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-11-13 13:28:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2100. [2024-11-13 13:28:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1683 states have (on average 1.6209150326797386) internal successors, (2728), 1688 states have internal predecessors, (2728), 395 states have call successors, (395), 17 states have call predecessors, (395), 21 states have return successors, (442), 394 states have call predecessors, (442), 394 states have call successors, (442) [2024-11-13 13:28:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 3565 transitions. [2024-11-13 13:28:18,457 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 3565 transitions. Word has length 127 [2024-11-13 13:28:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:18,457 INFO L471 AbstractCegarLoop]: Abstraction has 2100 states and 3565 transitions. [2024-11-13 13:28:18,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 3565 transitions. [2024-11-13 13:28:18,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 13:28:18,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:18,472 INFO L215 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] [2024-11-13 13:28:18,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:28:18,472 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:18,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1291966447, now seen corresponding path program 1 times [2024-11-13 13:28:18,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:18,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425249911] [2024-11-13 13:28:18,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:18,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 13:28:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 13:28:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:28:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:28:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 13:28:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 13:28:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 13:28:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:18,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:18,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425249911] [2024-11-13 13:28:18,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425249911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:18,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:18,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:18,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263099060] [2024-11-13 13:28:18,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:18,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:18,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:18,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:18,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:18,638 INFO L87 Difference]: Start difference. First operand 2100 states and 3565 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:20,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:20,274 INFO L93 Difference]: Finished difference Result 4935 states and 8566 transitions. [2024-11-13 13:28:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:20,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 5 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 [2024-11-13 13:28:20,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:20,305 INFO L225 Difference]: With dead ends: 4935 [2024-11-13 13:28:20,305 INFO L226 Difference]: Without dead ends: 3285 [2024-11-13 13:28:20,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:20,315 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 725 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:20,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 646 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:28:20,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2024-11-13 13:28:20,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 3219. [2024-11-13 13:28:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3219 states, 2623 states have (on average 1.6237133053755242) internal successors, (4259), 2628 states have internal predecessors, (4259), 574 states have call successors, (574), 17 states have call predecessors, (574), 21 states have return successors, (647), 573 states have call predecessors, (647), 573 states have call successors, (647) [2024-11-13 13:28:20,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 5480 transitions. [2024-11-13 13:28:20,608 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 5480 transitions. Word has length 128 [2024-11-13 13:28:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:20,608 INFO L471 AbstractCegarLoop]: Abstraction has 3219 states and 5480 transitions. [2024-11-13 13:28:20,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 5480 transitions. [2024-11-13 13:28:20,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 13:28:20,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:20,630 INFO L215 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] [2024-11-13 13:28:20,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:28:20,630 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:20,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash -786613306, now seen corresponding path program 1 times [2024-11-13 13:28:20,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:20,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863863751] [2024-11-13 13:28:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:28:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 13:28:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:28:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:28:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 13:28:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 13:28:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:28:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:20,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863863751] [2024-11-13 13:28:20,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863863751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:20,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:20,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062458338] [2024-11-13 13:28:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:20,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:20,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:20,806 INFO L87 Difference]: Start difference. First operand 3219 states and 5480 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:22,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:22,409 INFO L93 Difference]: Finished difference Result 7853 states and 13665 transitions. [2024-11-13 13:28:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:22,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 5 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 [2024-11-13 13:28:22,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:22,446 INFO L225 Difference]: With dead ends: 7853 [2024-11-13 13:28:22,447 INFO L226 Difference]: Without dead ends: 5316 [2024-11-13 13:28:22,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:22,460 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 723 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:22,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 687 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:28:22,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5316 states. [2024-11-13 13:28:22,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5316 to 5250. [2024-11-13 13:28:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5250 states, 4278 states have (on average 1.6154745208041141) internal successors, (6911), 4283 states have internal predecessors, (6911), 950 states have call successors, (950), 17 states have call predecessors, (950), 21 states have return successors, (1067), 949 states have call predecessors, (1067), 949 states have call successors, (1067) [2024-11-13 13:28:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 8928 transitions. [2024-11-13 13:28:22,953 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 8928 transitions. Word has length 129 [2024-11-13 13:28:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:22,954 INFO L471 AbstractCegarLoop]: Abstraction has 5250 states and 8928 transitions. [2024-11-13 13:28:22,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 8928 transitions. [2024-11-13 13:28:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 13:28:22,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:22,991 INFO L215 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] [2024-11-13 13:28:22,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:28:22,991 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:22,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:22,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1230921933, now seen corresponding path program 1 times [2024-11-13 13:28:22,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:22,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081108528] [2024-11-13 13:28:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 13:28:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 13:28:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 13:28:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 13:28:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 13:28:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 13:28:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 13:28:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:23,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:23,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081108528] [2024-11-13 13:28:23,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081108528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:23,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:23,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:23,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277664408] [2024-11-13 13:28:23,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:23,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:23,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:23,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:23,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:23,146 INFO L87 Difference]: Start difference. First operand 5250 states and 8928 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:24,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:24,872 INFO L93 Difference]: Finished difference Result 12995 states and 22574 transitions. [2024-11-13 13:28:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:24,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 5 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 130 [2024-11-13 13:28:24,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:24,928 INFO L225 Difference]: With dead ends: 12995 [2024-11-13 13:28:24,928 INFO L226 Difference]: Without dead ends: 8804 [2024-11-13 13:28:24,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:24,943 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 721 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:24,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 648 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:28:24,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8804 states. [2024-11-13 13:28:25,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8804 to 8738. [2024-11-13 13:28:25,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8738 states, 7160 states have (on average 1.6124301675977655) internal successors, (11545), 7165 states have internal predecessors, (11545), 1556 states have call successors, (1556), 17 states have call predecessors, (1556), 21 states have return successors, (1751), 1555 states have call predecessors, (1751), 1555 states have call successors, (1751) [2024-11-13 13:28:25,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8738 states to 8738 states and 14852 transitions. [2024-11-13 13:28:25,566 INFO L78 Accepts]: Start accepts. Automaton has 8738 states and 14852 transitions. Word has length 130 [2024-11-13 13:28:25,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:25,566 INFO L471 AbstractCegarLoop]: Abstraction has 8738 states and 14852 transitions. [2024-11-13 13:28:25,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8738 states and 14852 transitions. [2024-11-13 13:28:25,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 13:28:25,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:25,606 INFO L215 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, 1] [2024-11-13 13:28:25,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:28:25,606 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:25,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:25,607 INFO L85 PathProgramCache]: Analyzing trace with hash 685069896, now seen corresponding path program 1 times [2024-11-13 13:28:25,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:25,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768165336] [2024-11-13 13:28:25,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:25,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:28:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:28:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:28:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 13:28:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 13:28:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:28:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 13:28:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:25,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:25,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768165336] [2024-11-13 13:28:25,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768165336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:25,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:25,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:25,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725102182] [2024-11-13 13:28:25,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:25,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:25,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:25,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:25,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:25,765 INFO L87 Difference]: Start difference. First operand 8738 states and 14852 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:27,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:27,852 INFO L93 Difference]: Finished difference Result 22654 states and 39280 transitions. [2024-11-13 13:28:27,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:27,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 5 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 131 [2024-11-13 13:28:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:27,964 INFO L225 Difference]: With dead ends: 22654 [2024-11-13 13:28:27,965 INFO L226 Difference]: Without dead ends: 15397 [2024-11-13 13:28:27,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:27,997 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 719 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:27,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 675 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:28:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15397 states. [2024-11-13 13:28:29,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15397 to 15331. [2024-11-13 13:28:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15331 states, 12550 states have (on average 1.6024701195219124) internal successors, (20111), 12555 states have internal predecessors, (20111), 2759 states have call successors, (2759), 17 states have call predecessors, (2759), 21 states have return successors, (3098), 2758 states have call predecessors, (3098), 2758 states have call successors, (3098) [2024-11-13 13:28:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15331 states to 15331 states and 25968 transitions. [2024-11-13 13:28:29,101 INFO L78 Accepts]: Start accepts. Automaton has 15331 states and 25968 transitions. Word has length 131 [2024-11-13 13:28:29,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:29,102 INFO L471 AbstractCegarLoop]: Abstraction has 15331 states and 25968 transitions. [2024-11-13 13:28:29,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:29,102 INFO L276 IsEmpty]: Start isEmpty. Operand 15331 states and 25968 transitions. [2024-11-13 13:28:29,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 13:28:29,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:29,150 INFO L215 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, 1, 1] [2024-11-13 13:28:29,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:28:29,151 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:29,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:29,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1819747316, now seen corresponding path program 1 times [2024-11-13 13:28:29,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:29,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276416219] [2024-11-13 13:28:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:28:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:28:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:28:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 13:28:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:28:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-13 13:28:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 13:28:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:29,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:29,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276416219] [2024-11-13 13:28:29,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276416219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:29,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:29,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:29,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015510916] [2024-11-13 13:28:29,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:29,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:29,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:29,318 INFO L87 Difference]: Start difference. First operand 15331 states and 25968 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:31,563 INFO L93 Difference]: Finished difference Result 40610 states and 70263 transitions. [2024-11-13 13:28:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:31,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (15), 5 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 132 [2024-11-13 13:28:31,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:31,730 INFO L225 Difference]: With dead ends: 40610 [2024-11-13 13:28:31,731 INFO L226 Difference]: Without dead ends: 27367 [2024-11-13 13:28:31,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:31,792 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 717 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:31,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 647 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:28:31,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27367 states. [2024-11-13 13:28:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27367 to 27301. [2024-11-13 13:28:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27301 states, 22481 states have (on average 1.5977492104443753) internal successors, (35919), 22486 states have internal predecessors, (35919), 4798 states have call successors, (4798), 17 states have call predecessors, (4798), 21 states have return successors, (5411), 4797 states have call predecessors, (5411), 4797 states have call successors, (5411) [2024-11-13 13:28:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27301 states to 27301 states and 46128 transitions. [2024-11-13 13:28:33,868 INFO L78 Accepts]: Start accepts. Automaton has 27301 states and 46128 transitions. Word has length 132 [2024-11-13 13:28:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:33,869 INFO L471 AbstractCegarLoop]: Abstraction has 27301 states and 46128 transitions. [2024-11-13 13:28:33,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 27301 states and 46128 transitions. [2024-11-13 13:28:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 13:28:33,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:33,918 INFO L215 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, 1, 1, 1] [2024-11-13 13:28:33,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:28:33,918 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:33,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1817933526, now seen corresponding path program 1 times [2024-11-13 13:28:33,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:33,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731359209] [2024-11-13 13:28:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:33,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:28:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:28:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:28:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:28:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:28:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-13 13:28:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-13 13:28:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:34,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:34,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731359209] [2024-11-13 13:28:34,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731359209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:34,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:34,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:34,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79074165] [2024-11-13 13:28:34,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:34,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:34,096 INFO L87 Difference]: Start difference. First operand 27301 states and 46128 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:36,586 INFO L93 Difference]: Finished difference Result 74397 states and 127862 transitions. [2024-11-13 13:28:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:36,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (15), 5 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 133 [2024-11-13 13:28:36,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:36,879 INFO L225 Difference]: With dead ends: 74397 [2024-11-13 13:28:36,880 INFO L226 Difference]: Without dead ends: 49916 [2024-11-13 13:28:36,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:36,978 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 715 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:36,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 652 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:28:37,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49916 states. [2024-11-13 13:28:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49916 to 49850. [2024-11-13 13:28:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49850 states, 41315 states have (on average 1.5916737262495462) internal successors, (65760), 41320 states have internal predecessors, (65760), 8513 states have call successors, (8513), 17 states have call predecessors, (8513), 21 states have return successors, (9658), 8512 states have call predecessors, (9658), 8512 states have call successors, (9658) [2024-11-13 13:28:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49850 states to 49850 states and 83931 transitions. [2024-11-13 13:28:40,770 INFO L78 Accepts]: Start accepts. Automaton has 49850 states and 83931 transitions. Word has length 133 [2024-11-13 13:28:40,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:40,771 INFO L471 AbstractCegarLoop]: Abstraction has 49850 states and 83931 transitions. [2024-11-13 13:28:40,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 49850 states and 83931 transitions. [2024-11-13 13:28:40,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 13:28:40,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:40,825 INFO L215 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, 1, 1, 1, 1] [2024-11-13 13:28:40,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:28:40,825 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:40,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:40,825 INFO L85 PathProgramCache]: Analyzing trace with hash -174651116, now seen corresponding path program 1 times [2024-11-13 13:28:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:40,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545196678] [2024-11-13 13:28:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:40,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 13:28:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:28:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:28:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:28:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 13:28:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 13:28:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-13 13:28:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:40,997 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:40,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:40,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545196678] [2024-11-13 13:28:40,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545196678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:40,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:40,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:28:40,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840739431] [2024-11-13 13:28:40,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:40,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:28:40,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:41,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:28:41,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:28:41,000 INFO L87 Difference]: Start difference. First operand 49850 states and 83931 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:45,070 INFO L93 Difference]: Finished difference Result 92883 states and 159993 transitions. [2024-11-13 13:28:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:28:45,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 5 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 134 [2024-11-13 13:28:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:45,510 INFO L225 Difference]: With dead ends: 92883 [2024-11-13 13:28:45,511 INFO L226 Difference]: Without dead ends: 92760 [2024-11-13 13:28:45,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:28:45,557 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 710 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:45,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 678 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:28:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92760 states. [2024-11-13 13:28:49,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92760 to 92694. [2024-11-13 13:28:49,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92694 states, 77360 states have (on average 1.584100310237849) internal successors, (122546), 77365 states have internal predecessors, (122546), 15312 states have call successors, (15312), 17 states have call predecessors, (15312), 21 states have return successors, (17503), 15311 states have call predecessors, (17503), 15311 states have call successors, (17503) [2024-11-13 13:28:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92694 states to 92694 states and 155361 transitions. [2024-11-13 13:28:50,049 INFO L78 Accepts]: Start accepts. Automaton has 92694 states and 155361 transitions. Word has length 134 [2024-11-13 13:28:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:50,050 INFO L471 AbstractCegarLoop]: Abstraction has 92694 states and 155361 transitions. [2024-11-13 13:28:50,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand 92694 states and 155361 transitions. [2024-11-13 13:28:50,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:28:50,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:50,110 INFO L215 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, 1, 1, 1, 1, 1] [2024-11-13 13:28:50,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:28:50,110 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:50,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash 743505897, now seen corresponding path program 1 times [2024-11-13 13:28:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:50,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288240120] [2024-11-13 13:28:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:50,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:28:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:28:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:28:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 13:28:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 13:28:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:28:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-13 13:28:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:50,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:50,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288240120] [2024-11-13 13:28:50,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288240120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:50,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:50,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:28:50,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346940808] [2024-11-13 13:28:50,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:50,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:28:50,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:50,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:28:50,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:28:50,356 INFO L87 Difference]: Start difference. First operand 92694 states and 155361 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:54,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:54,374 INFO L93 Difference]: Finished difference Result 92865 states and 158879 transitions. [2024-11-13 13:28:54,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:28:54,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2024-11-13 13:28:54,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:54,798 INFO L225 Difference]: With dead ends: 92865 [2024-11-13 13:28:54,798 INFO L226 Difference]: Without dead ends: 92752 [2024-11-13 13:28:54,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:28:54,842 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 631 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:54,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 935 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 13:28:54,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92752 states. [2024-11-13 13:28:58,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92752 to 92694. [2024-11-13 13:28:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92694 states, 77360 states have (on average 1.5840873836608067) internal successors, (122545), 77365 states have internal predecessors, (122545), 15312 states have call successors, (15312), 17 states have call predecessors, (15312), 21 states have return successors, (17503), 15311 states have call predecessors, (17503), 15311 states have call successors, (17503) [2024-11-13 13:28:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92694 states to 92694 states and 155360 transitions. [2024-11-13 13:28:59,105 INFO L78 Accepts]: Start accepts. Automaton has 92694 states and 155360 transitions. Word has length 135 [2024-11-13 13:28:59,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:59,105 INFO L471 AbstractCegarLoop]: Abstraction has 92694 states and 155360 transitions. [2024-11-13 13:28:59,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 13:28:59,106 INFO L276 IsEmpty]: Start isEmpty. Operand 92694 states and 155360 transitions. [2024-11-13 13:28:59,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 13:28:59,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:59,194 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:28:59,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:28:59,195 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:59,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:59,196 INFO L85 PathProgramCache]: Analyzing trace with hash -563412086, now seen corresponding path program 1 times [2024-11-13 13:28:59,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:59,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013625576] [2024-11-13 13:28:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:59,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:28:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:28:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:28:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:28:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:28:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:28:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:28:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:28:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:28:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 13:28:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 13:28:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:28:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-13 13:28:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-13 13:28:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:28:59,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:59,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013625576] [2024-11-13 13:28:59,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013625576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:59,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:59,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:28:59,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587835566] [2024-11-13 13:28:59,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:59,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:28:59,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:59,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:28:59,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:28:59,574 INFO L87 Difference]: Start difference. First operand 92694 states and 155360 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:29:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:05,034 INFO L93 Difference]: Finished difference Result 93032 states and 159108 transitions. [2024-11-13 13:29:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:29:05,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2024-11-13 13:29:05,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:05,446 INFO L225 Difference]: With dead ends: 93032 [2024-11-13 13:29:05,447 INFO L226 Difference]: Without dead ends: 92919 [2024-11-13 13:29:05,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:29:05,488 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1263 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:05,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 918 Invalid, 2303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:29:05,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92919 states. [2024-11-13 13:29:09,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92919 to 92809. [2024-11-13 13:29:09,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92809 states, 77453 states have (on average 1.583915406762811) internal successors, (122679), 77458 states have internal predecessors, (122679), 15323 states have call successors, (15323), 26 states have call predecessors, (15323), 32 states have return successors, (17516), 15324 states have call predecessors, (17516), 15321 states have call successors, (17516) [2024-11-13 13:29:09,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92809 states to 92809 states and 155518 transitions. [2024-11-13 13:29:09,856 INFO L78 Accepts]: Start accepts. Automaton has 92809 states and 155518 transitions. Word has length 142 [2024-11-13 13:29:09,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:09,856 INFO L471 AbstractCegarLoop]: Abstraction has 92809 states and 155518 transitions. [2024-11-13 13:29:09,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:29:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 92809 states and 155518 transitions. [2024-11-13 13:29:09,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-13 13:29:09,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:09,942 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:09,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:29:09,943 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:09,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:09,943 INFO L85 PathProgramCache]: Analyzing trace with hash -526234764, now seen corresponding path program 1 times [2024-11-13 13:29:09,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:09,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218555256] [2024-11-13 13:29:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:29:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:29:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:29:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:29:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:29:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:29:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:29:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:29:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:29:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 13:29:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 13:29:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:29:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 13:29:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 13:29:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 13:29:10,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:10,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218555256] [2024-11-13 13:29:10,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218555256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:10,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:10,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 13:29:10,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220200122] [2024-11-13 13:29:10,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:10,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 13:29:10,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:10,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 13:29:10,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:29:10,571 INFO L87 Difference]: Start difference. First operand 92809 states and 155518 transitions. Second operand has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 12 states have internal predecessors, (100), 8 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14)