./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product37.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_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/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_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/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_9415e9f6-600a-4dbd-ab55-f955ad97ff76/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 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:57:11,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:57:11,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:57:11,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:57:11,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:57:11,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:57:11,134 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:57:11,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:57:11,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:57:11,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:57:11,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:57:11,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:57:11,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:57:11,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:57:11,137 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:57:11,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:57:11,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:57:11,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:57:11,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:57:11,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:57:11,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:57:11,140 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_9415e9f6-600a-4dbd-ab55-f955ad97ff76/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 -> 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 [2024-11-13 13:57:11,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:57:11,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:57:11,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:57:11,468 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:57:11,468 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:57:11,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c Unable to find full path for "g++" [2024-11-13 13:57:13,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:57:13,849 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:57:13,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2024-11-13 13:57:13,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/data/4f6949e1b/5549f686778348e191d5ab4f93e54e8a/FLAGd56a9aca1 [2024-11-13 13:57:13,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/data/4f6949e1b/5549f686778348e191d5ab4f93e54e8a [2024-11-13 13:57:13,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:57:13,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:57:13,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:57:13,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:57:13,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:57:13,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:57:13" (1/1) ... [2024-11-13 13:57:13,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556b5ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:13, skipping insertion in model container [2024-11-13 13:57:13,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:57:13" (1/1) ... [2024-11-13 13:57:13,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:57:14,214 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_9415e9f6-600a-4dbd-ab55-f955ad97ff76/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2024-11-13 13:57:14,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:57:14,801 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:57:14,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-11-13 13:57:14,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] [2024-11-13 13:57:14,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [384] [2024-11-13 13:57:14,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1455] [2024-11-13 13:57:14,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1686] [2024-11-13 13:57:14,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1721] [2024-11-13 13:57:14,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1738] [2024-11-13 13:57:14,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2146] [2024-11-13 13:57:14,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2512] [2024-11-13 13:57:14,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2576] [2024-11-13 13:57:14,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2595] [2024-11-13 13:57:14,820 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_9415e9f6-600a-4dbd-ab55-f955ad97ff76/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2024-11-13 13:57:14,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:57:14,982 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:57:14,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14 WrapperNode [2024-11-13 13:57:14,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:57:14,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:57:14,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:57:14,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:57:14,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,099 INFO L138 Inliner]: procedures = 124, calls = 170, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 833 [2024-11-13 13:57:15,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:57:15,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:57:15,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:57:15,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:57:15,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,146 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 13:57:15,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:57:15,213 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:57:15,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:57:15,214 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:57:15,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (1/1) ... [2024-11-13 13:57:15,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:57:15,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:57:15,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:57:15,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:57:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 13:57:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 13:57:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 13:57:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 13:57:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-13 13:57:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-13 13:57:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 13:57:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 13:57:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 13:57:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 13:57:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 13:57:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 13:57:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-13 13:57:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-13 13:57:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 13:57:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 13:57:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:57:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 13:57:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 13:57:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 13:57:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 13:57:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 13:57:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 13:57:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 13:57:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 13:57:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 13:57:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 13:57:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 13:57:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 13:57:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:57:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:57:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 13:57:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 13:57:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 13:57:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 13:57:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:57:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:57:15,557 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:57:15,560 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:57:16,475 INFO L? ?]: Removed 326 outVars from TransFormulas that were not future-live. [2024-11-13 13:57:16,475 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:57:16,498 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:57:16,498 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:57:16,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:57:16 BoogieIcfgContainer [2024-11-13 13:57:16,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:57:16,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:57:16,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:57:16,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:57:16,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:57:13" (1/3) ... [2024-11-13 13:57:16,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e46356a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:57:16, skipping insertion in model container [2024-11-13 13:57:16,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:57:14" (2/3) ... [2024-11-13 13:57:16,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e46356a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:57:16, skipping insertion in model container [2024-11-13 13:57:16,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:57:16" (3/3) ... [2024-11-13 13:57:16,510 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product37.cil.c [2024-11-13 13:57:16,528 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:57:16,531 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product37.cil.c that has 16 procedures, 258 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:57:16,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:57:16,691 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;@95404c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:57:16,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:57:16,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 258 states, 201 states have (on average 1.5223880597014925) internal successors, (306), 203 states have internal predecessors, (306), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 13:57:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 13:57:16,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:16,723 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 13:57:16,724 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:16,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:16,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1055827173, now seen corresponding path program 1 times [2024-11-13 13:57:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:16,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059976004] [2024-11-13 13:57:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:16,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:57:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:57:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:57:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 13:57:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 13:57:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 13:57:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 13:57:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 13:57:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:57:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:57:17,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:17,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059976004] [2024-11-13 13:57:17,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059976004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:57:17,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717979501] [2024-11-13 13:57:17,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:17,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:17,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:57:17,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:57:17,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:57:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:18,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 13:57:18,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:57:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 13:57:18,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:57:18,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717979501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:18,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:57:18,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-13 13:57:18,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246524764] [2024-11-13 13:57:18,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:18,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:57:18,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:18,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:57:18,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:57:18,261 INFO L87 Difference]: Start difference. First operand has 258 states, 201 states have (on average 1.5223880597014925) internal successors, (306), 203 states have internal predecessors, (306), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:18,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:18,325 INFO L93 Difference]: Finished difference Result 357 states and 518 transitions. [2024-11-13 13:57:18,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:57:18,331 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2024-11-13 13:57:18,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:18,344 INFO L225 Difference]: With dead ends: 357 [2024-11-13 13:57:18,344 INFO L226 Difference]: Without dead ends: 251 [2024-11-13 13:57:18,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 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 13:57:18,354 INFO L432 NwaCegarLoop]: 382 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, 382 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 13:57:18,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:57:18,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-13 13:57:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-11-13 13:57:18,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 195 states have (on average 1.5128205128205128) internal successors, (295), 196 states have internal predecessors, (295), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 13:57:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 374 transitions. [2024-11-13 13:57:18,418 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 374 transitions. Word has length 97 [2024-11-13 13:57:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:18,422 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 374 transitions. [2024-11-13 13:57:18,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 374 transitions. [2024-11-13 13:57:18,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 13:57:18,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:18,432 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 13:57:18,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:57:18,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 13:57:18,636 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:18,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash -10755265, now seen corresponding path program 1 times [2024-11-13 13:57:18,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:18,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247696522] [2024-11-13 13:57:18,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:18,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:18,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:57:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:57:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:57:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 13:57:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:57:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 13:57:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 13:57:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:57:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:57:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:57:19,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:19,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247696522] [2024-11-13 13:57:19,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247696522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:57:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755756491] [2024-11-13 13:57:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:19,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:19,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:57:19,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:57:19,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:57:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:19,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:57:19,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:57:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 13:57:19,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:57:19,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755756491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:19,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:57:19,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-13 13:57:19,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209088418] [2024-11-13 13:57:19,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:19,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:57:19,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:57:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:57:19,601 INFO L87 Difference]: Start difference. First operand 251 states and 374 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:19,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:19,674 INFO L93 Difference]: Finished difference Result 347 states and 499 transitions. [2024-11-13 13:57:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:57:19,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2024-11-13 13:57:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:19,679 INFO L225 Difference]: With dead ends: 347 [2024-11-13 13:57:19,681 INFO L226 Difference]: Without dead ends: 254 [2024-11-13 13:57:19,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:57:19,684 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 742 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 13:57:19,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 742 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:57:19,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-13 13:57:19,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2024-11-13 13:57:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 197 states have (on average 1.5076142131979695) internal successors, (297), 198 states have internal predecessors, (297), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 13:57:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 376 transitions. [2024-11-13 13:57:19,718 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 376 transitions. Word has length 98 [2024-11-13 13:57:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:19,720 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 376 transitions. [2024-11-13 13:57:19,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:19,721 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 376 transitions. [2024-11-13 13:57:19,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:57:19,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:19,726 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:19,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:57:19,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-13 13:57:19,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:19,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:19,928 INFO L85 PathProgramCache]: Analyzing trace with hash 319300784, now seen corresponding path program 1 times [2024-11-13 13:57:19,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:19,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883915901] [2024-11-13 13:57:19,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:19,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:57:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:57:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:57:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 13:57:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:57:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:57:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 13:57:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:57:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:57:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:57:20,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:20,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883915901] [2024-11-13 13:57:20,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883915901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:57:20,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605633513] [2024-11-13 13:57:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:20,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:20,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:57:20,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:57:20,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:57:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:20,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:57:20,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:57:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 13:57:20,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:57:20,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605633513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:20,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:57:20,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-13 13:57:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051845514] [2024-11-13 13:57:20,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:20,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:57:20,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:20,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:57:20,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:57:20,824 INFO L87 Difference]: Start difference. First operand 253 states and 376 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:20,865 INFO L93 Difference]: Finished difference Result 541 states and 819 transitions. [2024-11-13 13:57:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:57:20,866 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-11-13 13:57:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:20,869 INFO L225 Difference]: With dead ends: 541 [2024-11-13 13:57:20,872 INFO L226 Difference]: Without dead ends: 315 [2024-11-13 13:57:20,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:57:20,874 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 115 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 712 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 13:57:20,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 712 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:57:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-13 13:57:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 307. [2024-11-13 13:57:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 240 states have (on average 1.5291666666666666) internal successors, (367), 241 states have internal predecessors, (367), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-13 13:57:20,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 468 transitions. [2024-11-13 13:57:20,912 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 468 transitions. Word has length 107 [2024-11-13 13:57:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:20,913 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 468 transitions. [2024-11-13 13:57:20,913 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 468 transitions. [2024-11-13 13:57:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 13:57:20,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:20,916 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:20,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:57:21,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:21,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:21,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash 217786732, now seen corresponding path program 1 times [2024-11-13 13:57:21,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:21,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53044665] [2024-11-13 13:57:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:21,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 13:57:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 13:57:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 13:57:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 13:57:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 13:57:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:57:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:57:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 13:57:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 13:57:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,488 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:57:21,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:21,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53044665] [2024-11-13 13:57:21,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53044665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:57:21,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944309014] [2024-11-13 13:57:21,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:21,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:21,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:57:21,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:57:21,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:57:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:21,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:57:21,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:57:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 13:57:21,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:57:21,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944309014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:21,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:57:21,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-13 13:57:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750198110] [2024-11-13 13:57:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:21,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:57:21,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:21,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:57:21,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:57:21,989 INFO L87 Difference]: Start difference. First operand 307 states and 468 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:22,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:22,097 INFO L93 Difference]: Finished difference Result 605 states and 926 transitions. [2024-11-13 13:57:22,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:57:22,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-13 13:57:22,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:22,103 INFO L225 Difference]: With dead ends: 605 [2024-11-13 13:57:22,103 INFO L226 Difference]: Without dead ends: 309 [2024-11-13 13:57:22,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:57:22,106 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 2 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1453 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 13:57:22,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1453 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:57:22,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-13 13:57:22,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2024-11-13 13:57:22,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 241 states have (on average 1.5269709543568464) internal successors, (368), 243 states have internal predecessors, (368), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2024-11-13 13:57:22,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 471 transitions. [2024-11-13 13:57:22,129 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 471 transitions. Word has length 108 [2024-11-13 13:57:22,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:22,129 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 471 transitions. [2024-11-13 13:57:22,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 471 transitions. [2024-11-13 13:57:22,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 13:57:22,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:22,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:22,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:57:22,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:22,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:22,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1132574248, now seen corresponding path program 1 times [2024-11-13 13:57:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:22,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778389167] [2024-11-13 13:57:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 13:57:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 13:57:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 13:57:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 13:57:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:57:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 13:57:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:57:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 13:57:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 13:57:22,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:22,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778389167] [2024-11-13 13:57:22,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778389167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:57:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464264916] [2024-11-13 13:57:22,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:22,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:22,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:57:22,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:57:22,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:57:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:57:23,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:57:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 13:57:23,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:57:23,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464264916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:23,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:57:23,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-13 13:57:23,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874555727] [2024-11-13 13:57:23,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:23,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:57:23,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:23,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:57:23,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:57:23,164 INFO L87 Difference]: Start difference. First operand 309 states and 471 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:23,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:23,280 INFO L93 Difference]: Finished difference Result 607 states and 931 transitions. [2024-11-13 13:57:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:57:23,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2024-11-13 13:57:23,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:23,283 INFO L225 Difference]: With dead ends: 607 [2024-11-13 13:57:23,286 INFO L226 Difference]: Without dead ends: 311 [2024-11-13 13:57:23,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:57:23,288 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 2 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1439 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 13:57:23,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1439 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:57:23,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-13 13:57:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-13 13:57:23,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 242 states have (on average 1.524793388429752) internal successors, (369), 245 states have internal predecessors, (369), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-11-13 13:57:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 477 transitions. [2024-11-13 13:57:23,316 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 477 transitions. Word has length 109 [2024-11-13 13:57:23,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:23,316 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 477 transitions. [2024-11-13 13:57:23,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 477 transitions. [2024-11-13 13:57:23,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 13:57:23,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:23,319 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:23,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:57:23,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:23,520 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:23,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:23,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1618713091, now seen corresponding path program 1 times [2024-11-13 13:57:23,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:23,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884133288] [2024-11-13 13:57:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:23,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:57:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:57:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:57:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 13:57:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 13:57:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:57:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 13:57:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:57:23,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:23,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884133288] [2024-11-13 13:57:23,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884133288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:23,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:23,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:57:23,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396565911] [2024-11-13 13:57:23,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:23,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:57:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:57:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:57:23,819 INFO L87 Difference]: Start difference. First operand 311 states and 477 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:26,217 INFO L93 Difference]: Finished difference Result 734 states and 1134 transitions. [2024-11-13 13:57:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:57:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2024-11-13 13:57:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:26,222 INFO L225 Difference]: With dead ends: 734 [2024-11-13 13:57:26,226 INFO L226 Difference]: Without dead ends: 446 [2024-11-13 13:57:26,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:57:26,229 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 684 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:26,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1171 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:57:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-13 13:57:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 311. [2024-11-13 13:57:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 242 states have (on average 1.524793388429752) internal successors, (369), 245 states have internal predecessors, (369), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2024-11-13 13:57:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 476 transitions. [2024-11-13 13:57:26,314 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 476 transitions. Word has length 110 [2024-11-13 13:57:26,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:26,314 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 476 transitions. [2024-11-13 13:57:26,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:26,315 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 476 transitions. [2024-11-13 13:57:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 13:57:26,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:26,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:26,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:57:26,318 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:26,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:26,318 INFO L85 PathProgramCache]: Analyzing trace with hash -317535711, now seen corresponding path program 2 times [2024-11-13 13:57:26,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:26,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508942559] [2024-11-13 13:57:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:26,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:57:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 13:57:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 13:57:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:57:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 13:57:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:57:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:57:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:57:26,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:26,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508942559] [2024-11-13 13:57:26,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508942559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:26,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:26,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:57:26,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759846861] [2024-11-13 13:57:26,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:26,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:57:26,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:26,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:57:26,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:57:26,641 INFO L87 Difference]: Start difference. First operand 311 states and 476 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:28,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:28,803 INFO L93 Difference]: Finished difference Result 736 states and 1137 transitions. [2024-11-13 13:57:28,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:57:28,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2024-11-13 13:57:28,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:28,808 INFO L225 Difference]: With dead ends: 736 [2024-11-13 13:57:28,808 INFO L226 Difference]: Without dead ends: 448 [2024-11-13 13:57:28,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:57:28,810 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 678 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:28,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1172 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 13:57:28,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-13 13:57:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 313. [2024-11-13 13:57:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 243 states have (on average 1.522633744855967) internal successors, (370), 247 states have internal predecessors, (370), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (58), 50 states have call predecessors, (58), 50 states have call successors, (58) [2024-11-13 13:57:28,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 479 transitions. [2024-11-13 13:57:28,859 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 479 transitions. Word has length 111 [2024-11-13 13:57:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:28,859 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 479 transitions. [2024-11-13 13:57:28,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 13:57:28,860 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 479 transitions. [2024-11-13 13:57:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 13:57:28,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:28,865 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:28,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:57:28,865 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:28,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:28,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1037402270, now seen corresponding path program 1 times [2024-11-13 13:57:28,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:28,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769345266] [2024-11-13 13:57:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:28,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:57:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 13:57:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 13:57:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 13:57:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:57:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:57:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 13:57:29,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:29,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769345266] [2024-11-13 13:57:29,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769345266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:29,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:29,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:57:29,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107188432] [2024-11-13 13:57:29,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:29,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:57:29,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:29,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:57:29,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:57:29,161 INFO L87 Difference]: Start difference. First operand 313 states and 479 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 13:57:32,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:32,034 INFO L93 Difference]: Finished difference Result 734 states and 1132 transitions. [2024-11-13 13:57:32,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:57:32,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 112 [2024-11-13 13:57:32,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:32,038 INFO L225 Difference]: With dead ends: 734 [2024-11-13 13:57:32,039 INFO L226 Difference]: Without dead ends: 448 [2024-11-13 13:57:32,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:57:32,041 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 682 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:32,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1623 Invalid, 3276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:57:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-13 13:57:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 313. [2024-11-13 13:57:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 243 states have (on average 1.522633744855967) internal successors, (370), 247 states have internal predecessors, (370), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-11-13 13:57:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 478 transitions. [2024-11-13 13:57:32,078 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 478 transitions. Word has length 112 [2024-11-13 13:57:32,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:32,079 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 478 transitions. [2024-11-13 13:57:32,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 13:57:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 478 transitions. [2024-11-13 13:57:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 13:57:32,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:32,081 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:32,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:57:32,082 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:32,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:32,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2036348481, now seen corresponding path program 2 times [2024-11-13 13:57:32,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:32,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617292926] [2024-11-13 13:57:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:32,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 13:57:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:57:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 13:57:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:57:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:57:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 13:57:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 13:57:32,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:32,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617292926] [2024-11-13 13:57:32,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617292926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:32,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:57:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108106108] [2024-11-13 13:57:32,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:32,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:57:32,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:57:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:57:32,381 INFO L87 Difference]: Start difference. First operand 313 states and 478 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 13:57:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:35,044 INFO L93 Difference]: Finished difference Result 736 states and 1138 transitions. [2024-11-13 13:57:35,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:57:35,045 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2024-11-13 13:57:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:35,049 INFO L225 Difference]: With dead ends: 736 [2024-11-13 13:57:35,049 INFO L226 Difference]: Without dead ends: 450 [2024-11-13 13:57:35,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:57:35,053 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 678 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 3071 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 3311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 3071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:35,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1624 Invalid, 3311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 3071 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:57:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-13 13:57:35,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 315. [2024-11-13 13:57:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 244 states have (on average 1.5204918032786885) internal successors, (371), 249 states have internal predecessors, (371), 51 states have call successors, (51), 15 states have call predecessors, (51), 19 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-11-13 13:57:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 484 transitions. [2024-11-13 13:57:35,109 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 484 transitions. Word has length 113 [2024-11-13 13:57:35,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:35,111 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 484 transitions. [2024-11-13 13:57:35,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 13:57:35,113 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 484 transitions. [2024-11-13 13:57:35,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:57:35,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:35,115 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:35,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:57:35,115 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:35,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:35,116 INFO L85 PathProgramCache]: Analyzing trace with hash -879880167, now seen corresponding path program 1 times [2024-11-13 13:57:35,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:35,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142811670] [2024-11-13 13:57:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:35,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 13:57:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 13:57:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:57:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:57:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 13:57:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 13:57:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-13 13:57:35,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:35,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142811670] [2024-11-13 13:57:35,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142811670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:57:35,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640133078] [2024-11-13 13:57:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:35,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:35,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:57:35,434 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:57:35,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:57:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:35,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:57:35,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:57:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:35,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:57:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:36,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640133078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:57:36,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:57:36,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-13 13:57:36,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995076739] [2024-11-13 13:57:36,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:57:36,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:57:36,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:36,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:57:36,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:57:36,020 INFO L87 Difference]: Start difference. First operand 315 states and 484 transitions. Second operand has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-13 13:57:39,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:39,638 INFO L93 Difference]: Finished difference Result 1111 states and 1810 transitions. [2024-11-13 13:57:39,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 13:57:39,639 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 114 [2024-11-13 13:57:39,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:39,646 INFO L225 Difference]: With dead ends: 1111 [2024-11-13 13:57:39,646 INFO L226 Difference]: Without dead ends: 827 [2024-11-13 13:57:39,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-13 13:57:39,649 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1565 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 3803 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 4337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 3803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:39,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 1936 Invalid, 4337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 3803 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:57:39,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-11-13 13:57:39,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 668. [2024-11-13 13:57:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 533 states have (on average 1.5797373358348967) internal successors, (842), 538 states have internal predecessors, (842), 115 states have call successors, (115), 15 states have call predecessors, (115), 19 states have return successors, (136), 114 states have call predecessors, (136), 114 states have call successors, (136) [2024-11-13 13:57:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1093 transitions. [2024-11-13 13:57:39,714 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1093 transitions. Word has length 114 [2024-11-13 13:57:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:39,714 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 1093 transitions. [2024-11-13 13:57:39,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-13 13:57:39,715 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1093 transitions. [2024-11-13 13:57:39,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 13:57:39,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:39,719 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:39,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:57:39,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:39,920 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:39,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1774194972, now seen corresponding path program 1 times [2024-11-13 13:57:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:39,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142896215] [2024-11-13 13:57:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 13:57:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 13:57:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 13:57:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 13:57:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:57:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:57:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:40,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:40,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142896215] [2024-11-13 13:57:40,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142896215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:40,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:40,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:40,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40559937] [2024-11-13 13:57:40,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:40,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:40,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:40,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:40,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:40,084 INFO L87 Difference]: Start difference. First operand 668 states and 1093 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:41,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:41,826 INFO L93 Difference]: Finished difference Result 1726 states and 2889 transitions. [2024-11-13 13:57:41,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:41,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-13 13:57:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:41,837 INFO L225 Difference]: With dead ends: 1726 [2024-11-13 13:57:41,837 INFO L226 Difference]: Without dead ends: 1136 [2024-11-13 13:57:41,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:41,841 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 789 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:41,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 882 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 13:57:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-13 13:57:41,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 993. [2024-11-13 13:57:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 794 states have (on average 1.5957178841309825) internal successors, (1267), 799 states have internal predecessors, (1267), 179 states have call successors, (179), 15 states have call predecessors, (179), 19 states have return successors, (210), 178 states have call predecessors, (210), 178 states have call successors, (210) [2024-11-13 13:57:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1656 transitions. [2024-11-13 13:57:41,937 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1656 transitions. Word has length 117 [2024-11-13 13:57:41,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:41,937 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1656 transitions. [2024-11-13 13:57:41,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:41,938 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1656 transitions. [2024-11-13 13:57:41,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 13:57:41,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:41,943 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:41,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:57:41,944 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:41,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:41,944 INFO L85 PathProgramCache]: Analyzing trace with hash 632150165, now seen corresponding path program 1 times [2024-11-13 13:57:41,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:41,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218479690] [2024-11-13 13:57:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:41,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:57:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:57:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 13:57:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:57:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 13:57:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:57:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:42,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:42,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218479690] [2024-11-13 13:57:42,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218479690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:42,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:42,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:42,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775985766] [2024-11-13 13:57:42,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:42,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:42,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:42,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:42,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:42,082 INFO L87 Difference]: Start difference. First operand 993 states and 1656 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:43,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:43,733 INFO L93 Difference]: Finished difference Result 2531 states and 4273 transitions. [2024-11-13 13:57:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:43,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-11-13 13:57:43,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:43,743 INFO L225 Difference]: With dead ends: 2531 [2024-11-13 13:57:43,743 INFO L226 Difference]: Without dead ends: 1669 [2024-11-13 13:57:43,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:43,748 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 788 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:43,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 853 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 13:57:43,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-11-13 13:57:43,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1526. [2024-11-13 13:57:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1232 states have (on average 1.6014610389610389) internal successors, (1973), 1237 states have internal predecessors, (1973), 274 states have call successors, (274), 15 states have call predecessors, (274), 19 states have return successors, (305), 273 states have call predecessors, (305), 273 states have call successors, (305) [2024-11-13 13:57:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2552 transitions. [2024-11-13 13:57:43,878 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2552 transitions. Word has length 118 [2024-11-13 13:57:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:43,878 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 2552 transitions. [2024-11-13 13:57:43,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:43,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2552 transitions. [2024-11-13 13:57:43,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 13:57:43,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:43,887 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:43,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:57:43,887 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:43,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:43,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1505313910, now seen corresponding path program 1 times [2024-11-13 13:57:43,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:43,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808995050] [2024-11-13 13:57:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:43,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:43,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:43,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:43,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 13:57:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:57:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:57:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:57:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 13:57:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 13:57:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:44,059 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:44,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:44,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808995050] [2024-11-13 13:57:44,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808995050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:44,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:44,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:44,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695345218] [2024-11-13 13:57:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:44,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:44,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:44,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:44,063 INFO L87 Difference]: Start difference. First operand 1526 states and 2552 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:45,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:45,675 INFO L93 Difference]: Finished difference Result 3738 states and 6359 transitions. [2024-11-13 13:57:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:45,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-13 13:57:45,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:45,690 INFO L225 Difference]: With dead ends: 3738 [2024-11-13 13:57:45,691 INFO L226 Difference]: Without dead ends: 2478 [2024-11-13 13:57:45,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:45,696 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 786 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:45,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 852 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:57:45,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2024-11-13 13:57:45,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2335. [2024-11-13 13:57:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1918 states have (on average 1.6058394160583942) internal successors, (3080), 1923 states have internal predecessors, (3080), 397 states have call successors, (397), 15 states have call predecessors, (397), 19 states have return successors, (444), 396 states have call predecessors, (444), 396 states have call successors, (444) [2024-11-13 13:57:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3921 transitions. [2024-11-13 13:57:45,842 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3921 transitions. Word has length 119 [2024-11-13 13:57:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:45,842 INFO L471 AbstractCegarLoop]: Abstraction has 2335 states and 3921 transitions. [2024-11-13 13:57:45,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:45,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3921 transitions. [2024-11-13 13:57:45,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 13:57:45,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:45,853 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:45,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:57:45,853 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:45,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:45,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1907813930, now seen corresponding path program 1 times [2024-11-13 13:57:45,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:45,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245862113] [2024-11-13 13:57:45,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:45,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 13:57:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:57:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:57:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:57:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 13:57:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 13:57:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:45,999 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:45,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:45,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245862113] [2024-11-13 13:57:45,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245862113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:45,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:45,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:46,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293657477] [2024-11-13 13:57:46,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:46,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:46,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:46,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:46,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:46,001 INFO L87 Difference]: Start difference. First operand 2335 states and 3921 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:47,481 INFO L93 Difference]: Finished difference Result 5622 states and 9619 transitions. [2024-11-13 13:57:47,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:47,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-13 13:57:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:47,501 INFO L225 Difference]: With dead ends: 5622 [2024-11-13 13:57:47,502 INFO L226 Difference]: Without dead ends: 3772 [2024-11-13 13:57:47,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:47,509 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 785 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:47,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 852 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:57:47,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2024-11-13 13:57:47,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3629. [2024-11-13 13:57:47,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3033 states have (on average 1.6083086053412463) internal successors, (4878), 3038 states have internal predecessors, (4878), 576 states have call successors, (576), 15 states have call predecessors, (576), 19 states have return successors, (649), 575 states have call predecessors, (649), 575 states have call successors, (649) [2024-11-13 13:57:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 6103 transitions. [2024-11-13 13:57:47,747 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 6103 transitions. Word has length 120 [2024-11-13 13:57:47,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:47,747 INFO L471 AbstractCegarLoop]: Abstraction has 3629 states and 6103 transitions. [2024-11-13 13:57:47,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 6103 transitions. [2024-11-13 13:57:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:57:47,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:47,761 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:47,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:57:47,762 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:47,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:47,762 INFO L85 PathProgramCache]: Analyzing trace with hash -920149722, now seen corresponding path program 1 times [2024-11-13 13:57:47,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:47,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331035197] [2024-11-13 13:57:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:47,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:57:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 13:57:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 13:57:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:57:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 13:57:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 13:57:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:47,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:47,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331035197] [2024-11-13 13:57:47,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331035197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:47,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:47,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:47,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425281587] [2024-11-13 13:57:47,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:47,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:47,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:47,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:47,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:47,911 INFO L87 Difference]: Start difference. First operand 3629 states and 6103 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:49,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:49,537 INFO L93 Difference]: Finished difference Result 8725 states and 14983 transitions. [2024-11-13 13:57:49,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:49,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-13 13:57:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:49,570 INFO L225 Difference]: With dead ends: 8725 [2024-11-13 13:57:49,570 INFO L226 Difference]: Without dead ends: 5913 [2024-11-13 13:57:49,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:49,581 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 782 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:49,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 860 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:57:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2024-11-13 13:57:49,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5770. [2024-11-13 13:57:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 4798 states have (on average 1.6015006252605253) internal successors, (7684), 4803 states have internal predecessors, (7684), 952 states have call successors, (952), 15 states have call predecessors, (952), 19 states have return successors, (1069), 951 states have call predecessors, (1069), 951 states have call successors, (1069) [2024-11-13 13:57:49,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 9705 transitions. [2024-11-13 13:57:49,970 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 9705 transitions. Word has length 121 [2024-11-13 13:57:49,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:49,971 INFO L471 AbstractCegarLoop]: Abstraction has 5770 states and 9705 transitions. [2024-11-13 13:57:49,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:49,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 9705 transitions. [2024-11-13 13:57:49,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-13 13:57:49,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:49,990 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:49,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:57:49,990 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:49,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:49,990 INFO L85 PathProgramCache]: Analyzing trace with hash 344124474, now seen corresponding path program 1 times [2024-11-13 13:57:49,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:49,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681201775] [2024-11-13 13:57:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:49,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 13:57:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:57:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 13:57:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:57:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 13:57:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 13:57:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:50,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:50,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681201775] [2024-11-13 13:57:50,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681201775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:50,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:50,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:50,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116473805] [2024-11-13 13:57:50,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:50,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:50,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:50,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:50,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:50,119 INFO L87 Difference]: Start difference. First operand 5770 states and 9705 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:51,885 INFO L93 Difference]: Finished difference Result 14342 states and 24596 transitions. [2024-11-13 13:57:51,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:51,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-13 13:57:51,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:51,953 INFO L225 Difference]: With dead ends: 14342 [2024-11-13 13:57:51,954 INFO L226 Difference]: Without dead ends: 9791 [2024-11-13 13:57:51,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:51,968 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 781 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:51,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 860 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:57:51,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9791 states. [2024-11-13 13:57:52,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9791 to 9648. [2024-11-13 13:57:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9648 states, 8070 states have (on average 1.5988847583643122) internal successors, (12903), 8075 states have internal predecessors, (12903), 1558 states have call successors, (1558), 15 states have call predecessors, (1558), 19 states have return successors, (1753), 1557 states have call predecessors, (1753), 1557 states have call successors, (1753) [2024-11-13 13:57:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9648 states to 9648 states and 16214 transitions. [2024-11-13 13:57:52,513 INFO L78 Accepts]: Start accepts. Automaton has 9648 states and 16214 transitions. Word has length 122 [2024-11-13 13:57:52,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:52,513 INFO L471 AbstractCegarLoop]: Abstraction has 9648 states and 16214 transitions. [2024-11-13 13:57:52,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 9648 states and 16214 transitions. [2024-11-13 13:57:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:57:52,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:52,533 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:52,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:57:52,534 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:52,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:52,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1423141388, now seen corresponding path program 1 times [2024-11-13 13:57:52,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:52,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818474770] [2024-11-13 13:57:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:52,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:57:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 13:57:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 13:57:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 13:57:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:57:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:57:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:52,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:52,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818474770] [2024-11-13 13:57:52,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818474770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:52,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:52,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:52,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33204287] [2024-11-13 13:57:52,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:52,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:52,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:52,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:52,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:52,663 INFO L87 Difference]: Start difference. First operand 9648 states and 16214 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:54,418 INFO L93 Difference]: Finished difference Result 25051 states and 42877 transitions. [2024-11-13 13:57:54,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:54,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2024-11-13 13:57:54,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:54,494 INFO L225 Difference]: With dead ends: 25051 [2024-11-13 13:57:54,494 INFO L226 Difference]: Without dead ends: 17104 [2024-11-13 13:57:54,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:54,520 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 777 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:54,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 873 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:57:54,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17104 states. [2024-11-13 13:57:55,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17104 to 16961. [2024-11-13 13:57:55,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16961 states, 14180 states have (on average 1.5901974612129761) internal successors, (22549), 14185 states have internal predecessors, (22549), 2761 states have call successors, (2761), 15 states have call predecessors, (2761), 19 states have return successors, (3100), 2760 states have call predecessors, (3100), 2760 states have call successors, (3100) [2024-11-13 13:57:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16961 states to 16961 states and 28410 transitions. [2024-11-13 13:57:55,562 INFO L78 Accepts]: Start accepts. Automaton has 16961 states and 28410 transitions. Word has length 123 [2024-11-13 13:57:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:55,562 INFO L471 AbstractCegarLoop]: Abstraction has 16961 states and 28410 transitions. [2024-11-13 13:57:55,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:55,563 INFO L276 IsEmpty]: Start isEmpty. Operand 16961 states and 28410 transitions. [2024-11-13 13:57:55,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 13:57:55,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:55,587 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:55,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:57:55,587 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:55,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:55,588 INFO L85 PathProgramCache]: Analyzing trace with hash 189232795, now seen corresponding path program 1 times [2024-11-13 13:57:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174282535] [2024-11-13 13:57:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:57:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 13:57:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 13:57:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:57:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 13:57:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-13 13:57:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:55,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:55,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174282535] [2024-11-13 13:57:55,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174282535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:55,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:55,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:55,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187505273] [2024-11-13 13:57:55,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:55,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:55,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:55,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:55,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:55,716 INFO L87 Difference]: Start difference. First operand 16961 states and 28410 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:57,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:57,680 INFO L93 Difference]: Finished difference Result 45027 states and 76890 transitions. [2024-11-13 13:57:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:57:57,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-13 13:57:57,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:57,828 INFO L225 Difference]: With dead ends: 45027 [2024-11-13 13:57:57,828 INFO L226 Difference]: Without dead ends: 30444 [2024-11-13 13:57:57,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:57:57,867 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 778 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:57,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 852 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:57:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30444 states. [2024-11-13 13:57:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30444 to 30301. [2024-11-13 13:57:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30301 states, 25481 states have (on average 1.5859660138927043) internal successors, (40412), 25486 states have internal predecessors, (40412), 4800 states have call successors, (4800), 15 states have call predecessors, (4800), 19 states have return successors, (5413), 4799 states have call predecessors, (5413), 4799 states have call successors, (5413) [2024-11-13 13:57:59,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30301 states to 30301 states and 50625 transitions. [2024-11-13 13:57:59,821 INFO L78 Accepts]: Start accepts. Automaton has 30301 states and 50625 transitions. Word has length 124 [2024-11-13 13:57:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:59,822 INFO L471 AbstractCegarLoop]: Abstraction has 30301 states and 50625 transitions. [2024-11-13 13:57:59,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:57:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 30301 states and 50625 transitions. [2024-11-13 13:57:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 13:57:59,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:59,849 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:57:59,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:57:59,850 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:59,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash 425372214, now seen corresponding path program 1 times [2024-11-13 13:57:59,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:59,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60570425] [2024-11-13 13:57:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:59,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:57:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:57:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:57:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:57:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:57:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:57:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:57:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:57:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:57:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:57:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:57:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 13:57:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-13 13:57:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:57:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:57:59,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:57:59,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60570425] [2024-11-13 13:57:59,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60570425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:59,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:57:59,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:57:59,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515455148] [2024-11-13 13:57:59,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:59,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:59,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:57:59,982 INFO L87 Difference]: Start difference. First operand 30301 states and 50625 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:58:02,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:58:02,659 INFO L93 Difference]: Finished difference Result 82764 states and 140414 transitions. [2024-11-13 13:58:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:58:02,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-13 13:58:02,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:58:02,945 INFO L225 Difference]: With dead ends: 82764 [2024-11-13 13:58:02,945 INFO L226 Difference]: Without dead ends: 55653 [2024-11-13 13:58:03,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:58:03,027 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 773 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:58:03,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 873 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 13:58:03,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55653 states. [2024-11-13 13:58:05,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55653 to 55510. [2024-11-13 13:58:05,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55510 states, 46975 states have (on average 1.580478978179883) internal successors, (74243), 46980 states have internal predecessors, (74243), 8515 states have call successors, (8515), 15 states have call predecessors, (8515), 19 states have return successors, (9660), 8514 states have call predecessors, (9660), 8514 states have call successors, (9660) [2024-11-13 13:58:05,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55510 states to 55510 states and 92418 transitions. [2024-11-13 13:58:05,885 INFO L78 Accepts]: Start accepts. Automaton has 55510 states and 92418 transitions. Word has length 125 [2024-11-13 13:58:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:58:05,886 INFO L471 AbstractCegarLoop]: Abstraction has 55510 states and 92418 transitions. [2024-11-13 13:58:05,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:58:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 55510 states and 92418 transitions. [2024-11-13 13:58:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 13:58:05,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:58:05,931 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:58:05,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:58:05,931 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:58:05,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:58:05,932 INFO L85 PathProgramCache]: Analyzing trace with hash -772437925, now seen corresponding path program 1 times [2024-11-13 13:58:05,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:58:05,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435394841] [2024-11-13 13:58:05,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:58:05,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:58:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:58:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:58:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:58:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:58:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:58:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:58:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 13:58:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 13:58:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:58:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:58:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 13:58:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 13:58:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:58:06,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:58:06,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435394841] [2024-11-13 13:58:06,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435394841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:58:06,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:58:06,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:58:06,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208629849] [2024-11-13 13:58:06,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:58:06,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:58:06,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:58:06,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:58:06,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:58:06,093 INFO L87 Difference]: Start difference. First operand 55510 states and 92418 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:58:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:58:10,636 INFO L93 Difference]: Finished difference Result 103820 states and 176400 transitions. [2024-11-13 13:58:10,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:58:10,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2024-11-13 13:58:10,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:58:11,189 INFO L225 Difference]: With dead ends: 103820 [2024-11-13 13:58:11,189 INFO L226 Difference]: Without dead ends: 103727 [2024-11-13 13:58:11,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:58:11,225 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 769 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:58:11,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 890 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 13:58:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103727 states. [2024-11-13 13:58:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103727 to 103584. [2024-11-13 13:58:14,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103584 states, 88250 states have (on average 1.573643059490085) internal successors, (138874), 88255 states have internal predecessors, (138874), 15314 states have call successors, (15314), 15 states have call predecessors, (15314), 19 states have return successors, (17505), 15313 states have call predecessors, (17505), 15313 states have call successors, (17505) [2024-11-13 13:58:14,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103584 states to 103584 states and 171693 transitions. [2024-11-13 13:58:14,866 INFO L78 Accepts]: Start accepts. Automaton has 103584 states and 171693 transitions. Word has length 126 [2024-11-13 13:58:14,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:58:14,867 INFO L471 AbstractCegarLoop]: Abstraction has 103584 states and 171693 transitions. [2024-11-13 13:58:14,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 13:58:14,867 INFO L276 IsEmpty]: Start isEmpty. Operand 103584 states and 171693 transitions. [2024-11-13 13:58:14,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 13:58:14,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:58:14,900 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:58:14,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:58:14,901 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:58:14,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:58:14,901 INFO L85 PathProgramCache]: Analyzing trace with hash 218617685, now seen corresponding path program 1 times [2024-11-13 13:58:14,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:58:14,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518243101] [2024-11-13 13:58:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:58:14,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:58:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:58:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:58:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:58:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:58:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:58:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:58:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:58:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 13:58:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:58:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:58:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 13:58:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:58:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:58:15,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:58:15,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518243101] [2024-11-13 13:58:15,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518243101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:58:15,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112315671] [2024-11-13 13:58:15,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:58:15,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:58:15,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:58:15,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:58:15,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:58:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:16,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 13:58:16,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:58:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 13:58:16,698 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:58:16,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112315671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:58:16,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:58:16,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2024-11-13 13:58:16,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325929233] [2024-11-13 13:58:16,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:58:16,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:58:16,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:58:16,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:58:16,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2024-11-13 13:58:16,701 INFO L87 Difference]: Start difference. First operand 103584 states and 171693 transitions. Second operand has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-13 13:58:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:58:19,481 INFO L93 Difference]: Finished difference Result 103794 states and 171968 transitions. [2024-11-13 13:58:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:58:19,482 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 127 [2024-11-13 13:58:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:58:20,017 INFO L225 Difference]: With dead ends: 103794 [2024-11-13 13:58:20,018 INFO L226 Difference]: Without dead ends: 103707 [2024-11-13 13:58:20,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=178, Invalid=1462, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 13:58:20,050 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 499 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 3828 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:58:20,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 3828 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:58:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103707 states. [2024-11-13 13:58:23,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103707 to 103688. [2024-11-13 13:58:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103688 states, 88330 states have (on average 1.573429186007019) internal successors, (138981), 88335 states have internal predecessors, (138981), 15327 states have call successors, (15327), 24 states have call predecessors, (15327), 30 states have return successors, (17522), 15328 states have call predecessors, (17522), 15325 states have call successors, (17522) [2024-11-13 13:58:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103688 states to 103688 states and 171830 transitions. [2024-11-13 13:58:23,892 INFO L78 Accepts]: Start accepts. Automaton has 103688 states and 171830 transitions. Word has length 127 [2024-11-13 13:58:23,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:58:23,893 INFO L471 AbstractCegarLoop]: Abstraction has 103688 states and 171830 transitions. [2024-11-13 13:58:23,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-13 13:58:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 103688 states and 171830 transitions. [2024-11-13 13:58:23,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 13:58:23,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:58:23,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:58:23,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 13:58:24,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 13:58:24,135 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:58:24,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:58:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash 735568517, now seen corresponding path program 1 times [2024-11-13 13:58:24,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:58:24,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478071364] [2024-11-13 13:58:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:58:24,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:58:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:58:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:58:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:58:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:58:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:58:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:58:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:58:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 13:58:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 13:58:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 13:58:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 13:58:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 13:58:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 13:58:24,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:58:24,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478071364] [2024-11-13 13:58:24,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478071364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:58:24,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527468880] [2024-11-13 13:58:24,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:58:24,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:58:24,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:58:24,299 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:58:24,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9415e9f6-600a-4dbd-ab55-f955ad97ff76/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:58:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:58:24,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:58:24,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:58:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:58:24,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:58:24,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527468880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:58:24,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:58:24,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-13 13:58:24,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55019187] [2024-11-13 13:58:24,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:58:24,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:58:24,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:58:24,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:58:24,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:58:24,694 INFO L87 Difference]: Start difference. First operand 103688 states and 171830 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12)