./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX --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 bf462270e0c7c70d13b1dd17e19a66c26542ea365ec57459489c94e9a63941a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:43:13,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:43:13,608 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:43:13,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:43:13,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:43:13,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:43:13,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:43:13,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:43:13,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:43:13,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:43:13,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:43:13,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:43:13,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:43:13,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:43:13,648 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:43:13,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:43:13,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:43:13,649 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:43:13,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:43:13,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:43:13,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:43:13,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:43:13,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:43:13,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:43:13,655 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:43:13,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:43:13,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:43:13,660 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:43:13,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:43:13,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:43:13,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:43:13,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:43:13,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:43:13,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:43:13,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:43:13,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:43:13,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:43:13,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:43:13,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:43:13,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:43:13,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:43:13,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:43:13,665 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf462270e0c7c70d13b1dd17e19a66c26542ea365ec57459489c94e9a63941a0 [2024-11-08 18:43:13,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:43:13,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:43:13,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:43:13,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:43:13,988 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:43:13,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/email_spec4_product18.cil.c Unable to find full path for "g++" [2024-11-08 18:43:15,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:43:16,321 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:43:16,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/sv-benchmarks/c/product-lines/email_spec4_product18.cil.c [2024-11-08 18:43:16,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/data/af87358be/581ac6d23249421894930505cd94901a/FLAG4b5e18349 [2024-11-08 18:43:16,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/data/af87358be/581ac6d23249421894930505cd94901a [2024-11-08 18:43:16,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:43:16,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:43:16,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:43:16,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:43:16,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:43:16,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:43:16" (1/1) ... [2024-11-08 18:43:16,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5cf1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:16, skipping insertion in model container [2024-11-08 18:43:16,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:43:16" (1/1) ... [2024-11-08 18:43:16,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:43:17,203 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_fb3fd865-d307-40b9-9c77-fb09363c2f8a/sv-benchmarks/c/product-lines/email_spec4_product18.cil.c[61907,61920] [2024-11-08 18:43:17,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:43:17,234 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:43:17,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-08 18:43:17,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1128] [2024-11-08 18:43:17,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1540] [2024-11-08 18:43:17,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1847] [2024-11-08 18:43:17,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1946] [2024-11-08 18:43:17,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2162] [2024-11-08 18:43:17,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2528] [2024-11-08 18:43:17,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2563] [2024-11-08 18:43:17,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2591] [2024-11-08 18:43:17,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2877] [2024-11-08 18:43:17,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2886] [2024-11-08 18:43:17,412 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_fb3fd865-d307-40b9-9c77-fb09363c2f8a/sv-benchmarks/c/product-lines/email_spec4_product18.cil.c[61907,61920] [2024-11-08 18:43:17,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:43:17,454 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:43:17,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17 WrapperNode [2024-11-08 18:43:17,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:43:17,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:43:17,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:43:17,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:43:17,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,551 INFO L138 Inliner]: procedures = 127, calls = 185, calls flagged for inlining = 58, calls inlined = 49, statements flattened = 894 [2024-11-08 18:43:17,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:43:17,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:43:17,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:43:17,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:43:17,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,617 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]. [2024-11-08 18:43:17,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:43:17,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:43:17,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:43:17,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:43:17,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (1/1) ... [2024-11-08 18:43:17,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:43:17,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:17,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:43:17,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:43:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-08 18:43:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-08 18:43:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 18:43:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 18:43:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 18:43:17,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 18:43:17,814 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-08 18:43:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-08 18:43:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 18:43:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 18:43:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-08 18:43:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-08 18:43:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 18:43:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 18:43:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 18:43:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 18:43:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 18:43:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 18:43:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:43:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-08 18:43:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-08 18:43:17,820 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 18:43:17,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 18:43:17,821 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 18:43:17,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 18:43:17,821 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 18:43:17,821 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 18:43:17,822 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 18:43:17,822 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 18:43:17,822 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 18:43:17,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 18:43:17,822 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 18:43:17,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 18:43:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:43:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:43:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:43:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:43:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 18:43:17,823 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 18:43:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:43:17,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:43:18,079 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:43:18,083 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:43:19,052 INFO L? ?]: Removed 394 outVars from TransFormulas that were not future-live. [2024-11-08 18:43:19,052 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:43:19,074 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:43:19,074 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:43:19,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:43:19 BoogieIcfgContainer [2024-11-08 18:43:19,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:43:19,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:43:19,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:43:19,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:43:19,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:43:16" (1/3) ... [2024-11-08 18:43:19,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af5d67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:43:19, skipping insertion in model container [2024-11-08 18:43:19,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:17" (2/3) ... [2024-11-08 18:43:19,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af5d67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:43:19, skipping insertion in model container [2024-11-08 18:43:19,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:43:19" (3/3) ... [2024-11-08 18:43:19,083 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2024-11-08 18:43:19,102 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:43:19,102 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:43:19,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:43:19,219 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;@ff9799e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:43:19,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:43:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 291 states, 232 states have (on average 1.543103448275862) internal successors, (358), 234 states have internal predecessors, (358), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-08 18:43:19,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 18:43:19,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:19,250 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] [2024-11-08 18:43:19,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:19,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:19,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1648921394, now seen corresponding path program 1 times [2024-11-08 18:43:19,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:19,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207996467] [2024-11-08 18:43:19,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:19,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:43:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:43:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:43:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:43:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 18:43:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:20,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:43:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:20,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:43:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:20,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:43:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:20,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:43:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:20,020 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 18:43:20,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:20,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207996467] [2024-11-08 18:43:20,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207996467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748575653] [2024-11-08 18:43:20,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:20,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:20,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:20,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:20,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:43:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:20,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:43:20,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:20,461 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 18:43:20,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:20,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748575653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:20,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:43:20,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 18:43:20,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965105955] [2024-11-08 18:43:20,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:20,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:43:20,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:20,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:43:20,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:20,502 INFO L87 Difference]: Start difference. First operand has 291 states, 232 states have (on average 1.543103448275862) internal successors, (358), 234 states have internal predecessors, (358), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 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 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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) [2024-11-08 18:43:20,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:20,579 INFO L93 Difference]: Finished difference Result 428 states and 630 transitions. [2024-11-08 18:43:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:43:20,586 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 92 [2024-11-08 18:43:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:20,599 INFO L225 Difference]: With dead ends: 428 [2024-11-08 18:43:20,599 INFO L226 Difference]: Without dead ends: 284 [2024-11-08 18:43:20,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:20,612 INFO L432 NwaCegarLoop]: 434 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, 434 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 [2024-11-08 18:43:20,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-08 18:43:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2024-11-08 18:43:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 226 states have (on average 1.5353982300884956) internal successors, (347), 227 states have internal predecessors, (347), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-08 18:43:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 426 transitions. [2024-11-08 18:43:20,674 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 426 transitions. Word has length 92 [2024-11-08 18:43:20,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:20,676 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 426 transitions. [2024-11-08 18:43:20,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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) [2024-11-08 18:43:20,677 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 426 transitions. [2024-11-08 18:43:20,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:43:20,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:20,683 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] [2024-11-08 18:43:20,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:43:20,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:20,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:20,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1860843365, now seen corresponding path program 1 times [2024-11-08 18:43:20,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:20,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277250639] [2024-11-08 18:43:20,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:20,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:43:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:43:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:43:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 18:43:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 18:43:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:43:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:43:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 18:43:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:43:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 18:43:21,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:21,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277250639] [2024-11-08 18:43:21,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277250639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:21,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21482973] [2024-11-08 18:43:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:21,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:21,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:21,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:43:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:43:21,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 18:43:21,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:21,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21482973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:21,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:43:21,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 18:43:21,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276681229] [2024-11-08 18:43:21,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:21,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:21,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:21,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:21,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:43:21,752 INFO L87 Difference]: Start difference. First operand 284 states and 426 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-08 18:43:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:21,803 INFO L93 Difference]: Finished difference Result 418 states and 611 transitions. [2024-11-08 18:43:21,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:21,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 93 [2024-11-08 18:43:21,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:21,806 INFO L225 Difference]: With dead ends: 418 [2024-11-08 18:43:21,807 INFO L226 Difference]: Without dead ends: 287 [2024-11-08 18:43:21,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:43:21,810 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 1 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 846 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 [2024-11-08 18:43:21,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 846 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-08 18:43:21,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2024-11-08 18:43:21,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 228 states have (on average 1.530701754385965) internal successors, (349), 229 states have internal predecessors, (349), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-08 18:43:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 428 transitions. [2024-11-08 18:43:21,838 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 428 transitions. Word has length 93 [2024-11-08 18:43:21,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:21,839 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 428 transitions. [2024-11-08 18:43:21,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-08 18:43:21,839 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 428 transitions. [2024-11-08 18:43:21,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:43:21,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:21,843 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] [2024-11-08 18:43:21,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:43:22,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:22,044 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:22,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:22,045 INFO L85 PathProgramCache]: Analyzing trace with hash -709979935, now seen corresponding path program 1 times [2024-11-08 18:43:22,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:22,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108032206] [2024-11-08 18:43:22,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:22,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:43:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:43:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:43:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 18:43:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:43:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:43:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:43:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:43:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 18:43:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:43:22,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:22,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108032206] [2024-11-08 18:43:22,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108032206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:22,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276110586] [2024-11-08 18:43:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:22,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:22,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:22,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:22,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:43:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:43:22,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 18:43:22,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:22,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276110586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:22,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:43:22,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 18:43:22,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884611597] [2024-11-08 18:43:22,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:22,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:22,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:22,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:22,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:43:22,759 INFO L87 Difference]: Start difference. First operand 286 states and 428 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (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) [2024-11-08 18:43:22,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:22,795 INFO L93 Difference]: Finished difference Result 602 states and 915 transitions. [2024-11-08 18:43:22,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:22,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (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 102 [2024-11-08 18:43:22,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:22,800 INFO L225 Difference]: With dead ends: 602 [2024-11-08 18:43:22,800 INFO L226 Difference]: Without dead ends: 343 [2024-11-08 18:43:22,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:43:22,803 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 107 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 815 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 [2024-11-08 18:43:22,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 815 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:22,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-08 18:43:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 335. [2024-11-08 18:43:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 266 states have (on average 1.5451127819548873) internal successors, (411), 267 states have internal predecessors, (411), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 18:43:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 512 transitions. [2024-11-08 18:43:22,828 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 512 transitions. Word has length 102 [2024-11-08 18:43:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:22,829 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 512 transitions. [2024-11-08 18:43:22,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (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) [2024-11-08 18:43:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 512 transitions. [2024-11-08 18:43:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:43:22,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:22,837 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] [2024-11-08 18:43:22,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:43:23,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-08 18:43:23,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:23,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1096515272, now seen corresponding path program 1 times [2024-11-08 18:43:23,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:23,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700438362] [2024-11-08 18:43:23,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:23,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 18:43:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:43:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:43:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 18:43:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:43:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:43:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:43:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:43:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:43:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:43:23,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:23,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700438362] [2024-11-08 18:43:23,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700438362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:23,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091860012] [2024-11-08 18:43:23,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:23,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:23,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:23,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:23,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:43:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:23,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:43:23,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:43:23,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:23,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091860012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:23,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:43:23,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 18:43:23,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560164778] [2024-11-08 18:43:23,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:23,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:43:23,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:23,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:43:23,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:43:23,705 INFO L87 Difference]: Start difference. First operand 335 states and 512 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-08 18:43:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:23,773 INFO L93 Difference]: Finished difference Result 661 states and 1014 transitions. [2024-11-08 18:43:23,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:23,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 103 [2024-11-08 18:43:23,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:23,778 INFO L225 Difference]: With dead ends: 661 [2024-11-08 18:43:23,779 INFO L226 Difference]: Without dead ends: 337 [2024-11-08 18:43:23,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:43:23,781 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 2 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:23,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1661 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:23,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-08 18:43:23,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-08 18:43:23,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 267 states have (on average 1.5430711610486891) internal successors, (412), 269 states have internal predecessors, (412), 51 states have call successors, (51), 17 states have call predecessors, (51), 18 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2024-11-08 18:43:23,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 515 transitions. [2024-11-08 18:43:23,804 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 515 transitions. Word has length 103 [2024-11-08 18:43:23,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:23,804 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 515 transitions. [2024-11-08 18:43:23,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-08 18:43:23,805 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 515 transitions. [2024-11-08 18:43:23,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:43:23,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:23,808 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] [2024-11-08 18:43:23,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:43:24,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:24,009 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:24,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1416820559, now seen corresponding path program 1 times [2024-11-08 18:43:24,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:24,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687025814] [2024-11-08 18:43:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:24,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 18:43:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:43:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 18:43:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:43:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:43:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:43:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:43:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 18:43:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:43:24,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:24,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687025814] [2024-11-08 18:43:24,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687025814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:24,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586055188] [2024-11-08 18:43:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:24,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:24,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:24,300 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:24,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:43:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:24,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:43:24,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:24,689 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:43:24,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:24,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586055188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:24,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:43:24,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 18:43:24,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413229892] [2024-11-08 18:43:24,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:24,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:43:24,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:24,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:43:24,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:43:24,692 INFO L87 Difference]: Start difference. First operand 337 states and 515 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 18:43:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:24,770 INFO L93 Difference]: Finished difference Result 663 states and 1019 transitions. [2024-11-08 18:43:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:24,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 104 [2024-11-08 18:43:24,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:24,773 INFO L225 Difference]: With dead ends: 663 [2024-11-08 18:43:24,773 INFO L226 Difference]: Without dead ends: 339 [2024-11-08 18:43:24,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:43:24,776 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 2 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:24,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1647 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-08 18:43:24,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-08 18:43:24,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 268 states have (on average 1.541044776119403) internal successors, (413), 271 states have internal predecessors, (413), 51 states have call successors, (51), 17 states have call predecessors, (51), 19 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-11-08 18:43:24,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 521 transitions. [2024-11-08 18:43:24,796 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 521 transitions. Word has length 104 [2024-11-08 18:43:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:24,797 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 521 transitions. [2024-11-08 18:43:24,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 18:43:24,797 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 521 transitions. [2024-11-08 18:43:24,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 18:43:24,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:24,799 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] [2024-11-08 18:43:24,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:43:25,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:25,000 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:25,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:25,001 INFO L85 PathProgramCache]: Analyzing trace with hash -21852779, now seen corresponding path program 1 times [2024-11-08 18:43:25,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:25,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133553415] [2024-11-08 18:43:25,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:25,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:43:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:43:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:43:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:43:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:43:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:43:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 18:43:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:43:25,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:25,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133553415] [2024-11-08 18:43:25,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133553415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:25,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:25,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:43:25,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879141044] [2024-11-08 18:43:25,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:25,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:43:25,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:25,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:43:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:25,282 INFO L87 Difference]: Start difference. First operand 339 states and 521 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-08 18:43:27,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:27,424 INFO L93 Difference]: Finished difference Result 759 states and 1172 transitions. [2024-11-08 18:43:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:43:27,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 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 105 [2024-11-08 18:43:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:27,428 INFO L225 Difference]: With dead ends: 759 [2024-11-08 18:43:27,428 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 18:43:27,430 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 [2024-11-08 18:43:27,431 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 898 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:27,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1108 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:43:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 18:43:27,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 339. [2024-11-08 18:43:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 268 states have (on average 1.541044776119403) internal successors, (413), 271 states have internal predecessors, (413), 51 states have call successors, (51), 17 states have call predecessors, (51), 19 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2024-11-08 18:43:27,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 520 transitions. [2024-11-08 18:43:27,493 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 520 transitions. Word has length 105 [2024-11-08 18:43:27,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:27,493 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 520 transitions. [2024-11-08 18:43:27,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-08 18:43:27,494 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 520 transitions. [2024-11-08 18:43:27,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:43:27,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:27,496 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] [2024-11-08 18:43:27,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:43:27,496 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:27,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:27,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1008813258, now seen corresponding path program 2 times [2024-11-08 18:43:27,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:27,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915778437] [2024-11-08 18:43:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:27,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:43:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:43:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:43:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:43:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:43:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:43:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:43:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:43:27,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:27,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915778437] [2024-11-08 18:43:27,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915778437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:27,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:27,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:43:27,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540530244] [2024-11-08 18:43:27,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:27,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:43:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:43:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:27,740 INFO L87 Difference]: Start difference. First operand 339 states and 520 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-08 18:43:29,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:29,686 INFO L93 Difference]: Finished difference Result 761 states and 1175 transitions. [2024-11-08 18:43:29,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:43:29,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 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 106 [2024-11-08 18:43:29,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:29,690 INFO L225 Difference]: With dead ends: 761 [2024-11-08 18:43:29,690 INFO L226 Difference]: Without dead ends: 445 [2024-11-08 18:43:29,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:43:29,692 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 894 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:29,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1108 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:43:29,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-08 18:43:29,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 341. [2024-11-08 18:43:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 269 states have (on average 1.5390334572490707) internal successors, (414), 273 states have internal predecessors, (414), 51 states have call successors, (51), 17 states have call predecessors, (51), 20 states have return successors, (58), 50 states have call predecessors, (58), 50 states have call successors, (58) [2024-11-08 18:43:29,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 523 transitions. [2024-11-08 18:43:29,729 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 523 transitions. Word has length 106 [2024-11-08 18:43:29,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:29,730 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 523 transitions. [2024-11-08 18:43:29,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-08 18:43:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 523 transitions. [2024-11-08 18:43:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 18:43:29,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:29,732 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] [2024-11-08 18:43:29,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:43:29,733 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:29,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash 476312698, now seen corresponding path program 1 times [2024-11-08 18:43:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123802646] [2024-11-08 18:43:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:29,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:29,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:29,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:29,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:29,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:29,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:29,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:30,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:43:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:30,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:43:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:30,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:43:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:30,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:43:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:30,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:43:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:30,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:43:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:30,083 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:43:30,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:30,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123802646] [2024-11-08 18:43:30,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123802646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:30,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:30,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:43:30,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007333753] [2024-11-08 18:43:30,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:30,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:43:30,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:30,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:43:30,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:43:30,087 INFO L87 Difference]: Start difference. First operand 341 states and 523 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-08 18:43:32,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:32,922 INFO L93 Difference]: Finished difference Result 759 states and 1170 transitions. [2024-11-08 18:43:32,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:43:32,923 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 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 107 [2024-11-08 18:43:32,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:32,926 INFO L225 Difference]: With dead ends: 759 [2024-11-08 18:43:32,926 INFO L226 Difference]: Without dead ends: 445 [2024-11-08 18:43:32,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:43:32,928 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 898 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3212 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 3212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:32,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1535 Invalid, 3449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 3212 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 18:43:32,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-08 18:43:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 341. [2024-11-08 18:43:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 269 states have (on average 1.5390334572490707) internal successors, (414), 273 states have internal predecessors, (414), 51 states have call successors, (51), 17 states have call predecessors, (51), 20 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2024-11-08 18:43:32,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 522 transitions. [2024-11-08 18:43:32,963 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 522 transitions. Word has length 107 [2024-11-08 18:43:32,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:32,963 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 522 transitions. [2024-11-08 18:43:32,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-08 18:43:32,964 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 522 transitions. [2024-11-08 18:43:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:43:32,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:32,968 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] [2024-11-08 18:43:32,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:43:32,969 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:32,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1351307582, now seen corresponding path program 2 times [2024-11-08 18:43:32,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:32,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323144886] [2024-11-08 18:43:32,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:32,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:43:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:43:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:43:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:43:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:43:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:43:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:43:33,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:33,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323144886] [2024-11-08 18:43:33,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323144886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:33,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:33,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:43:33,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954578444] [2024-11-08 18:43:33,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:33,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:43:33,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:33,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:43:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:43:33,278 INFO L87 Difference]: Start difference. First operand 341 states and 522 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 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) [2024-11-08 18:43:35,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:35,958 INFO L93 Difference]: Finished difference Result 761 states and 1176 transitions. [2024-11-08 18:43:35,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:43:35,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 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 108 [2024-11-08 18:43:35,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:35,962 INFO L225 Difference]: With dead ends: 761 [2024-11-08 18:43:35,962 INFO L226 Difference]: Without dead ends: 447 [2024-11-08 18:43:35,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:43:35,964 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 895 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3216 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 3216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:35,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 1535 Invalid, 3452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 3216 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 18:43:35,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-11-08 18:43:35,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 343. [2024-11-08 18:43:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 270 states have (on average 1.537037037037037) internal successors, (415), 275 states have internal predecessors, (415), 51 states have call successors, (51), 17 states have call predecessors, (51), 21 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2024-11-08 18:43:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 528 transitions. [2024-11-08 18:43:35,996 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 528 transitions. Word has length 108 [2024-11-08 18:43:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:35,997 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 528 transitions. [2024-11-08 18:43:35,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 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) [2024-11-08 18:43:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 528 transitions. [2024-11-08 18:43:35,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:43:35,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:35,999 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] [2024-11-08 18:43:35,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:43:36,000 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:36,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:36,000 INFO L85 PathProgramCache]: Analyzing trace with hash 638379263, now seen corresponding path program 1 times [2024-11-08 18:43:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:36,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494317421] [2024-11-08 18:43:36,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:36,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:43:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 18:43:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 18:43:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:43:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 18:43:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:43:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:43:36,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:36,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494317421] [2024-11-08 18:43:36,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494317421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:36,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462474869] [2024-11-08 18:43:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:36,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:36,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:36,254 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:36,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:43:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:43:36,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:36,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:36,751 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:36,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462474869] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:43:36,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:43:36,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-08 18:43:36,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319564616] [2024-11-08 18:43:36,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:36,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:43:36,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:36,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:43:36,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:43:36,757 INFO L87 Difference]: Start difference. First operand 343 states and 528 transitions. Second operand has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 11 states have internal predecessors, (118), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 18:43:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:39,704 INFO L93 Difference]: Finished difference Result 1111 states and 1808 transitions. [2024-11-08 18:43:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:43:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 11 states have internal predecessors, (118), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 109 [2024-11-08 18:43:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:39,713 INFO L225 Difference]: With dead ends: 1111 [2024-11-08 18:43:39,713 INFO L226 Difference]: Without dead ends: 799 [2024-11-08 18:43:39,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-08 18:43:39,718 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 2010 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 3785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:39,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 1670 Invalid, 3785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 18:43:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-08 18:43:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 671. [2024-11-08 18:43:39,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 534 states have (on average 1.5842696629213484) internal successors, (846), 539 states have internal predecessors, (846), 115 states have call successors, (115), 17 states have call predecessors, (115), 21 states have return successors, (136), 114 states have call predecessors, (136), 114 states have call successors, (136) [2024-11-08 18:43:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1097 transitions. [2024-11-08 18:43:39,771 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1097 transitions. Word has length 109 [2024-11-08 18:43:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:39,771 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 1097 transitions. [2024-11-08 18:43:39,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 11 states have internal predecessors, (118), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 18:43:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1097 transitions. [2024-11-08 18:43:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:43:39,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:39,776 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] [2024-11-08 18:43:39,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:43:39,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb3fd865-d307-40b9-9c77-fb09363c2f8a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 18:43:39,976 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:39,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1831760673, now seen corresponding path program 1 times [2024-11-08 18:43:39,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:39,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486553099] [2024-11-08 18:43:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:39,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:43:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:43:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:43:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:43:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 18:43:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:43:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:40,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:40,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486553099] [2024-11-08 18:43:40,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486553099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:40,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:40,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:40,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076234286] [2024-11-08 18:43:40,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:40,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:40,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:40,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:40,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:40,128 INFO L87 Difference]: Start difference. First operand 671 states and 1097 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-08 18:43:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:41,779 INFO L93 Difference]: Finished difference Result 1676 states and 2807 transitions. [2024-11-08 18:43:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 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 112 [2024-11-08 18:43:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:41,788 INFO L225 Difference]: With dead ends: 1676 [2024-11-08 18:43:41,788 INFO L226 Difference]: Without dead ends: 1083 [2024-11-08 18:43:41,791 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 [2024-11-08 18:43:41,792 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 998 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:41,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 854 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:43:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-08 18:43:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 971. [2024-11-08 18:43:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 770 states have (on average 1.5987012987012987) internal successors, (1231), 775 states have internal predecessors, (1231), 179 states have call successors, (179), 17 states have call predecessors, (179), 21 states have return successors, (210), 178 states have call predecessors, (210), 178 states have call successors, (210) [2024-11-08 18:43:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1620 transitions. [2024-11-08 18:43:41,893 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1620 transitions. Word has length 112 [2024-11-08 18:43:41,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:41,893 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1620 transitions. [2024-11-08 18:43:41,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-08 18:43:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1620 transitions. [2024-11-08 18:43:41,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:43:41,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:41,900 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] [2024-11-08 18:43:41,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:43:41,901 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:41,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1329250109, now seen corresponding path program 1 times [2024-11-08 18:43:41,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:41,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848428682] [2024-11-08 18:43:41,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:41,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:41,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:43:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:43:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:43:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:43:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:43:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 18:43:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848428682] [2024-11-08 18:43:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848428682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675594341] [2024-11-08 18:43:42,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:42,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:42,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:42,067 INFO L87 Difference]: Start difference. First operand 971 states and 1620 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-08 18:43:43,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:43,621 INFO L93 Difference]: Finished difference Result 2416 states and 4087 transitions. [2024-11-08 18:43:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:43,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 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 113 [2024-11-08 18:43:43,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:43,631 INFO L225 Difference]: With dead ends: 2416 [2024-11-08 18:43:43,631 INFO L226 Difference]: Without dead ends: 1576 [2024-11-08 18:43:43,635 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 [2024-11-08 18:43:43,635 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 996 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:43,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 812 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 18:43:43,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-08 18:43:43,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1464. [2024-11-08 18:43:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1168 states have (on average 1.6035958904109588) internal successors, (1873), 1173 states have internal predecessors, (1873), 274 states have call successors, (274), 17 states have call predecessors, (274), 21 states have return successors, (305), 273 states have call predecessors, (305), 273 states have call successors, (305) [2024-11-08 18:43:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 2452 transitions. [2024-11-08 18:43:43,726 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 2452 transitions. Word has length 113 [2024-11-08 18:43:43,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:43,727 INFO L471 AbstractCegarLoop]: Abstraction has 1464 states and 2452 transitions. [2024-11-08 18:43:43,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-08 18:43:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 2452 transitions. [2024-11-08 18:43:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 18:43:43,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:43,734 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] [2024-11-08 18:43:43,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:43:43,735 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:43,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash 497685331, now seen corresponding path program 1 times [2024-11-08 18:43:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:43,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343059352] [2024-11-08 18:43:43,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:43,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 18:43:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:43:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:43:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:43:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:43:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 18:43:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:43,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343059352] [2024-11-08 18:43:43,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343059352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:43,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:43,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:43,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840720297] [2024-11-08 18:43:43,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:43,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:43,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:43,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:43,889 INFO L87 Difference]: Start difference. First operand 1464 states and 2452 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-11-08 18:43:45,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:45,481 INFO L93 Difference]: Finished difference Result 3518 states and 6005 transitions. [2024-11-08 18:43:45,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:45,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 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 114 [2024-11-08 18:43:45,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:45,495 INFO L225 Difference]: With dead ends: 3518 [2024-11-08 18:43:45,496 INFO L226 Difference]: Without dead ends: 2320 [2024-11-08 18:43:45,500 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 [2024-11-08 18:43:45,502 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 993 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:45,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 807 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 18:43:45,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2024-11-08 18:43:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2208. [2024-11-08 18:43:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1789 states have (on average 1.6076020122973729) internal successors, (2876), 1794 states have internal predecessors, (2876), 397 states have call successors, (397), 17 states have call predecessors, (397), 21 states have return successors, (444), 396 states have call predecessors, (444), 396 states have call successors, (444) [2024-11-08 18:43:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3717 transitions. [2024-11-08 18:43:45,636 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3717 transitions. Word has length 114 [2024-11-08 18:43:45,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:45,637 INFO L471 AbstractCegarLoop]: Abstraction has 2208 states and 3717 transitions. [2024-11-08 18:43:45,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-11-08 18:43:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3717 transitions. [2024-11-08 18:43:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 18:43:45,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:45,646 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] [2024-11-08 18:43:45,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:43:45,647 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:45,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1593366402, now seen corresponding path program 1 times [2024-11-08 18:43:45,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:45,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052875860] [2024-11-08 18:43:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 18:43:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:43:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:43:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 18:43:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:43:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:43:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:45,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:45,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052875860] [2024-11-08 18:43:45,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052875860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:45,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:45,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:45,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406842430] [2024-11-08 18:43:45,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:45,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:45,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:45,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:45,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:45,787 INFO L87 Difference]: Start difference. First operand 2208 states and 3717 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-08 18:43:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:47,333 INFO L93 Difference]: Finished difference Result 5227 states and 8985 transitions. [2024-11-08 18:43:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:47,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 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 115 [2024-11-08 18:43:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:47,358 INFO L225 Difference]: With dead ends: 5227 [2024-11-08 18:43:47,358 INFO L226 Difference]: Without dead ends: 3504 [2024-11-08 18:43:47,365 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 [2024-11-08 18:43:47,367 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 991 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:47,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 805 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 18:43:47,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2024-11-08 18:43:47,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 3392. [2024-11-08 18:43:47,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 2794 states have (on average 1.6098783106657122) internal successors, (4498), 2799 states have internal predecessors, (4498), 576 states have call successors, (576), 17 states have call predecessors, (576), 21 states have return successors, (649), 575 states have call predecessors, (649), 575 states have call successors, (649) [2024-11-08 18:43:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 5723 transitions. [2024-11-08 18:43:47,594 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 5723 transitions. Word has length 115 [2024-11-08 18:43:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:47,594 INFO L471 AbstractCegarLoop]: Abstraction has 3392 states and 5723 transitions. [2024-11-08 18:43:47,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-08 18:43:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 5723 transitions. [2024-11-08 18:43:47,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:43:47,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:47,605 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] [2024-11-08 18:43:47,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:43:47,606 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:47,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash -501589097, now seen corresponding path program 1 times [2024-11-08 18:43:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:47,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120748308] [2024-11-08 18:43:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:47,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:43:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:43:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:43:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:43:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:43:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 18:43:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:47,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:47,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120748308] [2024-11-08 18:43:47,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120748308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:47,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:47,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:47,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960972128] [2024-11-08 18:43:47,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:47,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:47,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:47,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:47,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:47,740 INFO L87 Difference]: Start difference. First operand 3392 states and 5723 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-08 18:43:49,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:49,304 INFO L93 Difference]: Finished difference Result 8300 states and 14301 transitions. [2024-11-08 18:43:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:49,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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 116 [2024-11-08 18:43:49,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:49,337 INFO L225 Difference]: With dead ends: 8300 [2024-11-08 18:43:49,337 INFO L226 Difference]: Without dead ends: 5645 [2024-11-08 18:43:49,349 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 [2024-11-08 18:43:49,349 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 989 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:49,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 829 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:43:49,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2024-11-08 18:43:49,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 5533. [2024-11-08 18:43:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 4559 states have (on average 1.6021057249396797) internal successors, (7304), 4564 states have internal predecessors, (7304), 952 states have call successors, (952), 17 states have call predecessors, (952), 21 states have return successors, (1069), 951 states have call predecessors, (1069), 951 states have call successors, (1069) [2024-11-08 18:43:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 9325 transitions. [2024-11-08 18:43:49,703 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 9325 transitions. Word has length 116 [2024-11-08 18:43:49,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:49,703 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 9325 transitions. [2024-11-08 18:43:49,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-08 18:43:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 9325 transitions. [2024-11-08 18:43:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 18:43:49,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:49,717 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] [2024-11-08 18:43:49,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:43:49,718 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:49,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:49,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1491223746, now seen corresponding path program 1 times [2024-11-08 18:43:49,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:49,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118994664] [2024-11-08 18:43:49,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:49,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:43:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:43:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:43:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 18:43:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 18:43:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 18:43:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:49,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:49,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118994664] [2024-11-08 18:43:49,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118994664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:49,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:49,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:49,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348564152] [2024-11-08 18:43:49,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:49,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:49,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:49,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:49,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:49,851 INFO L87 Difference]: Start difference. First operand 5533 states and 9325 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) [2024-11-08 18:43:51,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:51,491 INFO L93 Difference]: Finished difference Result 13722 states and 23602 transitions. [2024-11-08 18:43:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:51,492 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 [2024-11-08 18:43:51,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:51,541 INFO L225 Difference]: With dead ends: 13722 [2024-11-08 18:43:51,542 INFO L226 Difference]: Without dead ends: 9328 [2024-11-08 18:43:51,558 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 [2024-11-08 18:43:51,559 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 988 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:51,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 817 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:43:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9328 states. [2024-11-08 18:43:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9328 to 9216. [2024-11-08 18:43:52,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9216 states, 7636 states have (on average 1.5991356731272919) internal successors, (12211), 7641 states have internal predecessors, (12211), 1558 states have call successors, (1558), 17 states have call predecessors, (1558), 21 states have return successors, (1753), 1557 states have call predecessors, (1753), 1557 states have call successors, (1753) [2024-11-08 18:43:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9216 states to 9216 states and 15522 transitions. [2024-11-08 18:43:52,189 INFO L78 Accepts]: Start accepts. Automaton has 9216 states and 15522 transitions. Word has length 117 [2024-11-08 18:43:52,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:52,190 INFO L471 AbstractCegarLoop]: Abstraction has 9216 states and 15522 transitions. [2024-11-08 18:43:52,190 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) [2024-11-08 18:43:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 9216 states and 15522 transitions. [2024-11-08 18:43:52,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:43:52,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:52,209 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] [2024-11-08 18:43:52,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:43:52,209 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:52,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash -600220587, now seen corresponding path program 1 times [2024-11-08 18:43:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941991702] [2024-11-08 18:43:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:43:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 18:43:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:43:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 18:43:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 18:43:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:43:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:52,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:52,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941991702] [2024-11-08 18:43:52,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941991702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:52,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:52,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:52,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058180583] [2024-11-08 18:43:52,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:52,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:52,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:52,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:52,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:52,345 INFO L87 Difference]: Start difference. First operand 9216 states and 15522 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) [2024-11-08 18:43:54,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:54,194 INFO L93 Difference]: Finished difference Result 23906 states and 41043 transitions. [2024-11-08 18:43:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:54,195 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 [2024-11-08 18:43:54,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:54,265 INFO L225 Difference]: With dead ends: 23906 [2024-11-08 18:43:54,266 INFO L226 Difference]: Without dead ends: 16281 [2024-11-08 18:43:54,292 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 [2024-11-08 18:43:54,293 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 985 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:54,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 839 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:43:54,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16281 states. [2024-11-08 18:43:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16281 to 16169. [2024-11-08 18:43:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16169 states, 13386 states have (on average 1.5897953085313015) internal successors, (21281), 13391 states have internal predecessors, (21281), 2761 states have call successors, (2761), 17 states have call predecessors, (2761), 21 states have return successors, (3100), 2760 states have call predecessors, (3100), 2760 states have call successors, (3100) [2024-11-08 18:43:55,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16169 states to 16169 states and 27142 transitions. [2024-11-08 18:43:55,202 INFO L78 Accepts]: Start accepts. Automaton has 16169 states and 27142 transitions. Word has length 118 [2024-11-08 18:43:55,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:55,202 INFO L471 AbstractCegarLoop]: Abstraction has 16169 states and 27142 transitions. [2024-11-08 18:43:55,202 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) [2024-11-08 18:43:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 16169 states and 27142 transitions. [2024-11-08 18:43:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:43:55,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:55,234 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] [2024-11-08 18:43:55,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:43:55,234 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:55,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1127130531, now seen corresponding path program 1 times [2024-11-08 18:43:55,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:55,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135799440] [2024-11-08 18:43:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:55,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:43:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 18:43:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:43:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:43:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:43:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:43:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:55,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:55,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135799440] [2024-11-08 18:43:55,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135799440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:55,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:55,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:55,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336263620] [2024-11-08 18:43:55,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:55,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:55,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:55,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:55,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:55,394 INFO L87 Difference]: Start difference. First operand 16169 states and 27142 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) [2024-11-08 18:43:57,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:57,489 INFO L93 Difference]: Finished difference Result 42872 states and 73440 transitions. [2024-11-08 18:43:57,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:57,490 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 [2024-11-08 18:43:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:57,614 INFO L225 Difference]: With dead ends: 42872 [2024-11-08 18:43:57,614 INFO L226 Difference]: Without dead ends: 28936 [2024-11-08 18:43:57,654 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 [2024-11-08 18:43:57,654 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 984 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:57,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 805 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:43:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28936 states. [2024-11-08 18:43:59,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28936 to 28824. [2024-11-08 18:43:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28824 states, 24002 states have (on average 1.585201233230564) internal successors, (38048), 24007 states have internal predecessors, (38048), 4800 states have call successors, (4800), 17 states have call predecessors, (4800), 21 states have return successors, (5413), 4799 states have call predecessors, (5413), 4799 states have call successors, (5413) [2024-11-08 18:43:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28824 states to 28824 states and 48261 transitions. [2024-11-08 18:43:59,246 INFO L78 Accepts]: Start accepts. Automaton has 28824 states and 48261 transitions. Word has length 119 [2024-11-08 18:43:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:59,246 INFO L471 AbstractCegarLoop]: Abstraction has 28824 states and 48261 transitions. [2024-11-08 18:43:59,247 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) [2024-11-08 18:43:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 28824 states and 48261 transitions. [2024-11-08 18:43:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:43:59,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:59,278 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] [2024-11-08 18:43:59,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:43:59,278 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:59,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:59,279 INFO L85 PathProgramCache]: Analyzing trace with hash -816215885, now seen corresponding path program 1 times [2024-11-08 18:43:59,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:59,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458436728] [2024-11-08 18:43:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:59,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:43:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:43:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:43:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:43:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:43:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:43:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:43:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:43:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:43:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:43:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 18:43:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 18:43:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:43:59,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:59,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458436728] [2024-11-08 18:43:59,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458436728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:59,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:59,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:59,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414819009] [2024-11-08 18:43:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:59,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:59,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:59,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:59,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:59,447 INFO L87 Difference]: Start difference. First operand 28824 states and 48261 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) [2024-11-08 18:44:02,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:02,331 INFO L93 Difference]: Finished difference Result 78634 states and 133804 transitions. [2024-11-08 18:44:02,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:44:02,331 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 [2024-11-08 18:44:02,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:02,526 INFO L225 Difference]: With dead ends: 78634 [2024-11-08 18:44:02,526 INFO L226 Difference]: Without dead ends: 52815 [2024-11-08 18:44:02,597 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 [2024-11-08 18:44:02,597 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 982 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:02,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 811 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 18:44:02,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52815 states. [2024-11-08 18:44:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52815 to 52703. [2024-11-08 18:44:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52703 states, 44166 states have (on average 1.5792917628945342) internal successors, (69751), 44171 states have internal predecessors, (69751), 8515 states have call successors, (8515), 17 states have call predecessors, (8515), 21 states have return successors, (9660), 8514 states have call predecessors, (9660), 8514 states have call successors, (9660) [2024-11-08 18:44:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52703 states to 52703 states and 87926 transitions. [2024-11-08 18:44:05,548 INFO L78 Accepts]: Start accepts. Automaton has 52703 states and 87926 transitions. Word has length 120 [2024-11-08 18:44:05,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:05,548 INFO L471 AbstractCegarLoop]: Abstraction has 52703 states and 87926 transitions. [2024-11-08 18:44:05,549 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) [2024-11-08 18:44:05,549 INFO L276 IsEmpty]: Start isEmpty. Operand 52703 states and 87926 transitions. [2024-11-08 18:44:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:44:05,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:05,585 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] [2024-11-08 18:44:05,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:44:05,585 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:05,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:05,586 INFO L85 PathProgramCache]: Analyzing trace with hash -602010947, now seen corresponding path program 1 times [2024-11-08 18:44:05,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:44:05,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421481272] [2024-11-08 18:44:05,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:05,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:44:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:44:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:44:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:44:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:44:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:44:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:44:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:44:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:44:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:44:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:44:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 18:44:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 18:44:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:44:05,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:44:05,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421481272] [2024-11-08 18:44:05,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421481272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:05,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:05,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:44:05,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426035649] [2024-11-08 18:44:05,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:05,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:44:05,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:44:05,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:44:05,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:44:05,750 INFO L87 Difference]: Start difference. First operand 52703 states and 87926 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) [2024-11-08 18:44:09,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:09,600 INFO L93 Difference]: Finished difference Result 98405 states and 167734 transitions. [2024-11-08 18:44:09,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:44:09,601 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 [2024-11-08 18:44:09,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:09,964 INFO L225 Difference]: With dead ends: 98405 [2024-11-08 18:44:09,964 INFO L226 Difference]: Without dead ends: 98274 [2024-11-08 18:44:10,000 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 [2024-11-08 18:44:10,001 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 976 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:10,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 846 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:44:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98274 states. [2024-11-08 18:44:13,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98274 to 98162. [2024-11-08 18:44:13,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98162 states, 82826 states have (on average 1.571946007292396) internal successors, (130198), 82831 states have internal predecessors, (130198), 15314 states have call successors, (15314), 17 states have call predecessors, (15314), 21 states have return successors, (17505), 15313 states have call predecessors, (17505), 15313 states have call successors, (17505) [2024-11-08 18:44:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98162 states to 98162 states and 163017 transitions. [2024-11-08 18:44:14,318 INFO L78 Accepts]: Start accepts. Automaton has 98162 states and 163017 transitions. Word has length 121 [2024-11-08 18:44:14,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:14,318 INFO L471 AbstractCegarLoop]: Abstraction has 98162 states and 163017 transitions. [2024-11-08 18:44:14,319 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) [2024-11-08 18:44:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 98162 states and 163017 transitions. [2024-11-08 18:44:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:44:14,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:14,343 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] [2024-11-08 18:44:14,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:44:14,343 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:14,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:14,344 INFO L85 PathProgramCache]: Analyzing trace with hash -336933356, now seen corresponding path program 1 times [2024-11-08 18:44:14,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:44:14,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138832118] [2024-11-08 18:44:14,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:14,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:44:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:44:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:44:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:44:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:44:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:44:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:44:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:44:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:44:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:44:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:44:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:44:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 18:44:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:44:15,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:44:15,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138832118] [2024-11-08 18:44:15,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138832118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:15,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:15,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:44:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978637315] [2024-11-08 18:44:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:15,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:44:15,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:44:15,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:44:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:44:15,186 INFO L87 Difference]: Start difference. First operand 98162 states and 163017 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:44:20,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:20,245 INFO L93 Difference]: Finished difference Result 98608 states and 166942 transitions. [2024-11-08 18:44:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 18:44:20,246 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-08 18:44:20,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:20,614 INFO L225 Difference]: With dead ends: 98608 [2024-11-08 18:44:20,615 INFO L226 Difference]: Without dead ends: 98485 [2024-11-08 18:44:20,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:44:20,648 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1364 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 3231 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 3518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 3231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:20,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1137 Invalid, 3518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 3231 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 18:44:20,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98485 states. [2024-11-08 18:44:24,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98485 to 98287. [2024-11-08 18:44:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98287 states, 82928 states have (on average 1.571797221686282) internal successors, (130346), 82933 states have internal predecessors, (130346), 15326 states have call successors, (15326), 26 states have call predecessors, (15326), 32 states have return successors, (17520), 15327 states have call predecessors, (17520), 15324 states have call successors, (17520) [2024-11-08 18:44:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98287 states to 98287 states and 163192 transitions. [2024-11-08 18:44:24,346 INFO L78 Accepts]: Start accepts. Automaton has 98287 states and 163192 transitions. Word has length 122 [2024-11-08 18:44:24,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:24,346 INFO L471 AbstractCegarLoop]: Abstraction has 98287 states and 163192 transitions. [2024-11-08 18:44:24,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:44:24,346 INFO L276 IsEmpty]: Start isEmpty. Operand 98287 states and 163192 transitions. [2024-11-08 18:44:24,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 18:44:24,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:24,371 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] [2024-11-08 18:44:24,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:44:24,371 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:24,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1383473456, now seen corresponding path program 1 times [2024-11-08 18:44:24,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:44:24,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221911095] [2024-11-08 18:44:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:24,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:44:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:44:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:44:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:44:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:44:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:44:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:44:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:44:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:44:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:44:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:44:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 18:44:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 18:44:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:44:25,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:44:25,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221911095] [2024-11-08 18:44:25,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221911095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:25,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:25,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 18:44:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312787577] [2024-11-08 18:44:25,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:25,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:44:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:44:25,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:44:25,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:44:25,235 INFO L87 Difference]: Start difference. First operand 98287 states and 163192 transitions. Second operand has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 18:44:31,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:31,049 INFO L93 Difference]: Finished difference Result 99023 states and 167559 transitions. [2024-11-08 18:44:31,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 18:44:31,050 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 123 [2024-11-08 18:44:31,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:31,358 INFO L225 Difference]: With dead ends: 99023 [2024-11-08 18:44:31,358 INFO L226 Difference]: Without dead ends: 98531 [2024-11-08 18:44:31,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=1636, Unknown=0, NotChecked=0, Total=1980 [2024-11-08 18:44:31,395 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1409 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 4459 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 4789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 4459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:31,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 1984 Invalid, 4789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 4459 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 18:44:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98531 states. [2024-11-08 18:44:34,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98531 to 98324. [2024-11-08 18:44:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98324 states, 82957 states have (on average 1.5717299323746037) internal successors, (130386), 82965 states have internal predecessors, (130386), 15332 states have call successors, (15332), 27 states have call predecessors, (15332), 34 states have return successors, (17528), 15331 states have call predecessors, (17528), 15330 states have call successors, (17528) [2024-11-08 18:44:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98324 states to 98324 states and 163246 transitions. [2024-11-08 18:44:35,471 INFO L78 Accepts]: Start accepts. Automaton has 98324 states and 163246 transitions. Word has length 123 [2024-11-08 18:44:35,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:35,472 INFO L471 AbstractCegarLoop]: Abstraction has 98324 states and 163246 transitions. [2024-11-08 18:44:35,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 18:44:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 98324 states and 163246 transitions. [2024-11-08 18:44:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 18:44:35,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:35,504 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] [2024-11-08 18:44:35,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:44:35,504 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:35,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash 538217674, now seen corresponding path program 1 times [2024-11-08 18:44:35,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:44:35,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798317286] [2024-11-08 18:44:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:35,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:44:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 18:44:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:44:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:44:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 18:44:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:44:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 18:44:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:44:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:44:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:44:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 18:44:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:44:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 18:44:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 18:44:35,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:44:35,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798317286] [2024-11-08 18:44:35,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798317286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:35,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:35,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:44:35,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349669487] [2024-11-08 18:44:35,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:35,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:44:35,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:44:35,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:44:35,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:44:35,784 INFO L87 Difference]: Start difference. First operand 98324 states and 163246 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 18:44:41,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:41,394 INFO L93 Difference]: Finished difference Result 99083 states and 167635 transitions. [2024-11-08 18:44:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:44:41,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2024-11-08 18:44:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:41,759 INFO L225 Difference]: With dead ends: 99083 [2024-11-08 18:44:41,759 INFO L226 Difference]: Without dead ends: 99015 [2024-11-08 18:44:41,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2024-11-08 18:44:41,797 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1516 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:41,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1543 Invalid, 3865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 3515 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 18:44:41,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99015 states.