./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:15,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:15,564 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:58:15,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:15,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:15,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:15,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:15,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:15,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:15,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:15,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:15,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:15,625 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:15,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:15,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:15,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:15,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:15,629 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:15,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:15,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:15,630 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:58:15,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:15,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:15,632 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:15,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:15,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:15,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:15,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:15,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:15,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:15,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:15,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:15,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:15,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:15,638 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:15,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:15,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:15,639 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:15,639 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_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 [2023-11-19 07:58:15,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:15,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:15,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:15,986 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:15,987 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:15,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2023-11-19 07:58:19,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:19,673 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:19,674 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2023-11-19 07:58:19,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/data/3515dc787/75591b38b1274e0d81ddddecbd06bce7/FLAG7cb615c22 [2023-11-19 07:58:19,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/data/3515dc787/75591b38b1274e0d81ddddecbd06bce7 [2023-11-19 07:58:19,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:19,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:19,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:19,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:19,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:19,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:19" (1/1) ... [2023-11-19 07:58:19,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f8766e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:19, skipping insertion in model container [2023-11-19 07:58:19,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:19" (1/1) ... [2023-11-19 07:58:19,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:20,415 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-19 07:58:20,415 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2023-11-19 07:58:21,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:21,369 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:21,479 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-19 07:58:21,479 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2023-11-19 07:58:21,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:21,764 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:21,773 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:21,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21 WrapperNode [2023-11-19 07:58:21,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:21,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:21,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:21,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:21,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:21,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:21,967 INFO L138 Inliner]: procedures = 158, calls = 844, calls flagged for inlining = 75, calls inlined = 63, statements flattened = 1917 [2023-11-19 07:58:21,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:21,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:21,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:21,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:21,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:21,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:22,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:22,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:22,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:22,146 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (1/1) ... [2023-11-19 07:58:22,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:22,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:22,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:22,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:58:22,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:58:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_open [2023-11-19 07:58:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_open [2023-11-19 07:58:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 07:58:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 07:58:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-11-19 07:58:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-11-19 07:58:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_close [2023-11-19 07:58:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_close [2023-11-19 07:58:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2023-11-19 07:58:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2023-11-19 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:58:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 07:58:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_command [2023-11-19 07:58:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_command [2023-11-19 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_info [2023-11-19 07:58:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_info [2023-11-19 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_data [2023-11-19 07:58:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_data [2023-11-19 07:58:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:58:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:58:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_remove [2023-11-19 07:58:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_remove [2023-11-19 07:58:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_get [2023-11-19 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_get [2023-11-19 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_detach [2023-11-19 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_detach [2023-11-19 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_close [2023-11-19 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_close [2023-11-19 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:58:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:58:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:58:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_init [2023-11-19 07:58:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_init [2023-11-19 07:58:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read_char [2023-11-19 07:58:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read_char [2023-11-19 07:58:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 07:58:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 07:58:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read [2023-11-19 07:58:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read [2023-11-19 07:58:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe_port [2023-11-19 07:58:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe_port [2023-11-19 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_open [2023-11-19 07:58:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_open [2023-11-19 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:58:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_smpte_stop [2023-11-19 07:58:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_smpte_stop [2023-11-19 07:58:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_disable_readout [2023-11-19 07:58:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_disable_readout [2023-11-19 07:58:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:58:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:58:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_put [2023-11-19 07:58:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_put [2023-11-19 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_enable_readout [2023-11-19 07:58:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_enable_readout [2023-11-19 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 07:58:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:58:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_midi [2023-11-19 07:58:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_midi [2023-11-19 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 07:58:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 07:58:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-19 07:58:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-19 07:58:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:58:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:58:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_ready [2023-11-19 07:58:22,258 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_ready [2023-11-19 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_probe [2023-11-19 07:58:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_probe [2023-11-19 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-19 07:58:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-19 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2023-11-19 07:58:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2023-11-19 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 07:58:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_unregister_all [2023-11-19 07:58:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_unregister_all [2023-11-19 07:58:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe [2023-11-19 07:58:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe [2023-11-19 07:58:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2023-11-19 07:58:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2023-11-19 07:58:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_output_trigger [2023-11-19 07:58:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_output_trigger [2023-11-19 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_input_trigger [2023-11-19 07:58:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_input_trigger [2023-11-19 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:58:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2023-11-19 07:58:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2023-11-19 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2023-11-19 07:58:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2023-11-19 07:58:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2023-11-19 07:58:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2023-11-19 07:58:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2023-11-19 07:58:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2023-11-19 07:58:22,749 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:22,759 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:22,964 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:58:24,893 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:24,917 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:24,918 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:58:24,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:24 BoogieIcfgContainer [2023-11-19 07:58:24,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:24,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:24,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:24,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:24,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:19" (1/3) ... [2023-11-19 07:58:24,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229a8740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:24, skipping insertion in model container [2023-11-19 07:58:24,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21" (2/3) ... [2023-11-19 07:58:24,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229a8740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:24, skipping insertion in model container [2023-11-19 07:58:24,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:24" (3/3) ... [2023-11-19 07:58:24,945 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2023-11-19 07:58:24,964 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:24,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-19 07:58:25,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:25,064 INFO L357 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, mHoare=true, 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;@591681b1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:25,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-19 07:58:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 846 states, 572 states have (on average 1.4108391608391608) internal successors, (807), 639 states have internal predecessors, (807), 179 states have call successors, (179), 50 states have call predecessors, (179), 49 states have return successors, (167), 164 states have call predecessors, (167), 167 states have call successors, (167) [2023-11-19 07:58:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:58:25,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:25,095 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:25,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:25,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:25,106 INFO L85 PathProgramCache]: Analyzing trace with hash 964897436, now seen corresponding path program 1 times [2023-11-19 07:58:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:25,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194238068] [2023-11-19 07:58:25,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:25,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:25,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:25,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:25,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:25,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:25,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194238068] [2023-11-19 07:58:25,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194238068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:25,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:25,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:25,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131187381] [2023-11-19 07:58:25,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:25,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:25,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:25,971 INFO L87 Difference]: Start difference. First operand has 846 states, 572 states have (on average 1.4108391608391608) internal successors, (807), 639 states have internal predecessors, (807), 179 states have call successors, (179), 50 states have call predecessors, (179), 49 states have return successors, (167), 164 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:28,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:28,218 INFO L93 Difference]: Finished difference Result 2650 states and 3885 transitions. [2023-11-19 07:58:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:28,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 49 [2023-11-19 07:58:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:28,263 INFO L225 Difference]: With dead ends: 2650 [2023-11-19 07:58:28,263 INFO L226 Difference]: Without dead ends: 1764 [2023-11-19 07:58:28,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:28,287 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 1431 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:28,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 2583 Invalid, 1035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [464 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:58:28,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2023-11-19 07:58:28,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1544. [2023-11-19 07:58:28,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1089 states have (on average 1.3746556473829201) internal successors, (1497), 1149 states have internal predecessors, (1497), 319 states have call successors, (319), 96 states have call predecessors, (319), 96 states have return successors, (317), 310 states have call predecessors, (317), 317 states have call successors, (317) [2023-11-19 07:58:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2133 transitions. [2023-11-19 07:58:28,534 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2133 transitions. Word has length 49 [2023-11-19 07:58:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:28,535 INFO L495 AbstractCegarLoop]: Abstraction has 1544 states and 2133 transitions. [2023-11-19 07:58:28,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2133 transitions. [2023-11-19 07:58:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 07:58:28,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:28,545 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:28,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:58:28,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:28,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:28,546 INFO L85 PathProgramCache]: Analyzing trace with hash -649511141, now seen corresponding path program 1 times [2023-11-19 07:58:28,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:28,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561700213] [2023-11-19 07:58:28,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:28,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:28,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:28,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561700213] [2023-11-19 07:58:28,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561700213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:28,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:28,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:28,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656610977] [2023-11-19 07:58:28,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:28,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:28,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:28,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:28,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:28,997 INFO L87 Difference]: Start difference. First operand 1544 states and 2133 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:31,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:31,005 INFO L93 Difference]: Finished difference Result 4824 states and 6751 transitions. [2023-11-19 07:58:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:31,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2023-11-19 07:58:31,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:31,032 INFO L225 Difference]: With dead ends: 4824 [2023-11-19 07:58:31,032 INFO L226 Difference]: Without dead ends: 3295 [2023-11-19 07:58:31,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:31,040 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 1358 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:31,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 2549 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 07:58:31,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2023-11-19 07:58:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2905. [2023-11-19 07:58:31,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2905 states, 2068 states have (on average 1.372340425531915) internal successors, (2838), 2148 states have internal predecessors, (2838), 607 states have call successors, (607), 190 states have call predecessors, (607), 190 states have return successors, (603), 588 states have call predecessors, (603), 603 states have call successors, (603) [2023-11-19 07:58:31,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 4048 transitions. [2023-11-19 07:58:31,249 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 4048 transitions. Word has length 52 [2023-11-19 07:58:31,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:31,250 INFO L495 AbstractCegarLoop]: Abstraction has 2905 states and 4048 transitions. [2023-11-19 07:58:31,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 4048 transitions. [2023-11-19 07:58:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:58:31,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:31,256 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:31,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:58:31,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:31,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:31,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1459674595, now seen corresponding path program 1 times [2023-11-19 07:58:31,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:31,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762967120] [2023-11-19 07:58:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:31,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:31,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:31,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762967120] [2023-11-19 07:58:31,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762967120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:31,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:31,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:31,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079836422] [2023-11-19 07:58:31,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:31,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:31,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:31,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:31,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:31,572 INFO L87 Difference]: Start difference. First operand 2905 states and 4048 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:33,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:33,558 INFO L93 Difference]: Finished difference Result 9221 states and 12996 transitions. [2023-11-19 07:58:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:33,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2023-11-19 07:58:33,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:33,625 INFO L225 Difference]: With dead ends: 9221 [2023-11-19 07:58:33,626 INFO L226 Difference]: Without dead ends: 6331 [2023-11-19 07:58:33,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:33,646 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 1359 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:33,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 2708 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:58:33,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2023-11-19 07:58:34,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 5595. [2023-11-19 07:58:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 4008 states have (on average 1.370259481037924) internal successors, (5492), 4130 states have internal predecessors, (5492), 1167 states have call successors, (1167), 380 states have call predecessors, (1167), 380 states have return successors, (1159), 1128 states have call predecessors, (1159), 1159 states have call successors, (1159) [2023-11-19 07:58:34,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 7818 transitions. [2023-11-19 07:58:34,230 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 7818 transitions. Word has length 55 [2023-11-19 07:58:34,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:34,231 INFO L495 AbstractCegarLoop]: Abstraction has 5595 states and 7818 transitions. [2023-11-19 07:58:34,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:34,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 7818 transitions. [2023-11-19 07:58:34,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:58:34,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:34,233 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:34,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:58:34,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting snd_mts64_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:34,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:34,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1817474157, now seen corresponding path program 1 times [2023-11-19 07:58:34,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:34,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047271618] [2023-11-19 07:58:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:34,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:34,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:34,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047271618] [2023-11-19 07:58:34,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047271618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:34,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:34,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:34,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094221726] [2023-11-19 07:58:34,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:34,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:34,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:34,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:34,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:34,627 INFO L87 Difference]: Start difference. First operand 5595 states and 7818 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:36,877 INFO L93 Difference]: Finished difference Result 17851 states and 25222 transitions. [2023-11-19 07:58:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:36,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2023-11-19 07:58:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:36,977 INFO L225 Difference]: With dead ends: 17851 [2023-11-19 07:58:36,977 INFO L226 Difference]: Without dead ends: 12151 [2023-11-19 07:58:37,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:37,010 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 1351 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:37,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 2791 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 07:58:37,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12151 states. [2023-11-19 07:58:37,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12151 to 10751. [2023-11-19 07:58:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 7745 states have (on average 1.3737895416397676) internal successors, (10640), 7927 states have internal predecessors, (10640), 2225 states have call successors, (2225), 746 states have call predecessors, (2225), 741 states have return successors, (2220), 2165 states have call predecessors, (2220), 2220 states have call successors, (2220) [2023-11-19 07:58:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 15085 transitions. [2023-11-19 07:58:37,800 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 15085 transitions. Word has length 58 [2023-11-19 07:58:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:37,801 INFO L495 AbstractCegarLoop]: Abstraction has 10751 states and 15085 transitions. [2023-11-19 07:58:37,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 15085 transitions. [2023-11-19 07:58:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:58:37,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:37,804 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:37,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:58:37,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:37,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:37,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2037294346, now seen corresponding path program 1 times [2023-11-19 07:58:37,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:37,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874313490] [2023-11-19 07:58:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:37,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:58:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:58:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:38,212 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:38,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:38,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874313490] [2023-11-19 07:58:38,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874313490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:38,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:38,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025478473] [2023-11-19 07:58:38,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:38,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:38,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:38,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:38,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:38,231 INFO L87 Difference]: Start difference. First operand 10751 states and 15085 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:41,384 INFO L93 Difference]: Finished difference Result 34145 states and 48451 transitions. [2023-11-19 07:58:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:41,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2023-11-19 07:58:41,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:41,535 INFO L225 Difference]: With dead ends: 34145 [2023-11-19 07:58:41,535 INFO L226 Difference]: Without dead ends: 23409 [2023-11-19 07:58:41,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:41,578 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1257 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:41,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 3573 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 07:58:41,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23409 states. [2023-11-19 07:58:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23409 to 20871. [2023-11-19 07:58:43,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20871 states, 15016 states have (on average 1.3704714970697922) internal successors, (20579), 15341 states have internal predecessors, (20579), 4362 states have call successors, (4362), 1462 states have call predecessors, (4362), 1453 states have return successors, (4353), 4243 states have call predecessors, (4353), 4353 states have call successors, (4353) [2023-11-19 07:58:43,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20871 states to 20871 states and 29294 transitions. [2023-11-19 07:58:43,382 INFO L78 Accepts]: Start accepts. Automaton has 20871 states and 29294 transitions. Word has length 65 [2023-11-19 07:58:43,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:43,385 INFO L495 AbstractCegarLoop]: Abstraction has 20871 states and 29294 transitions. [2023-11-19 07:58:43,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:43,385 INFO L276 IsEmpty]: Start isEmpty. Operand 20871 states and 29294 transitions. [2023-11-19 07:58:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:58:43,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:43,388 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:43,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:58:43,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting snd_mts64_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:43,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:43,390 INFO L85 PathProgramCache]: Analyzing trace with hash -125926512, now seen corresponding path program 1 times [2023-11-19 07:58:43,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:43,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874158662] [2023-11-19 07:58:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:43,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:58:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:58:43,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:43,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874158662] [2023-11-19 07:58:43,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874158662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:43,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:43,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:43,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970172801] [2023-11-19 07:58:43,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:43,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:43,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:43,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:43,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:43,690 INFO L87 Difference]: Start difference. First operand 20871 states and 29294 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:58:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:45,905 INFO L93 Difference]: Finished difference Result 44341 states and 62873 transitions. [2023-11-19 07:58:45,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:45,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2023-11-19 07:58:45,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:46,024 INFO L225 Difference]: With dead ends: 44341 [2023-11-19 07:58:46,025 INFO L226 Difference]: Without dead ends: 23485 [2023-11-19 07:58:46,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:46,082 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 192 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:46,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2567 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:58:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23485 states. [2023-11-19 07:58:47,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23485 to 20990. [2023-11-19 07:58:47,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20990 states, 15118 states have (on average 1.369096441328218) internal successors, (20698), 15443 states have internal predecessors, (20698), 4379 states have call successors, (4379), 1462 states have call predecessors, (4379), 1453 states have return successors, (4370), 4260 states have call predecessors, (4370), 4370 states have call successors, (4370) [2023-11-19 07:58:47,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20990 states to 20990 states and 29447 transitions. [2023-11-19 07:58:47,579 INFO L78 Accepts]: Start accepts. Automaton has 20990 states and 29447 transitions. Word has length 72 [2023-11-19 07:58:47,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:47,579 INFO L495 AbstractCegarLoop]: Abstraction has 20990 states and 29447 transitions. [2023-11-19 07:58:47,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:58:47,580 INFO L276 IsEmpty]: Start isEmpty. Operand 20990 states and 29447 transitions. [2023-11-19 07:58:47,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:58:47,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:47,589 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:47,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:58:47,590 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:47,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:47,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1604749102, now seen corresponding path program 1 times [2023-11-19 07:58:47,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:47,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294949844] [2023-11-19 07:58:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:47,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:58:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:58:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:48,149 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:48,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:48,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294949844] [2023-11-19 07:58:48,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294949844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:48,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:48,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:58:48,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437138317] [2023-11-19 07:58:48,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:48,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:48,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:48,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:48,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:48,152 INFO L87 Difference]: Start difference. First operand 20990 states and 29447 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:52,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:52,815 INFO L93 Difference]: Finished difference Result 72214 states and 103392 transitions. [2023-11-19 07:58:52,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:58:52,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-11-19 07:58:52,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:53,267 INFO L225 Difference]: With dead ends: 72214 [2023-11-19 07:58:53,267 INFO L226 Difference]: Without dead ends: 51239 [2023-11-19 07:58:53,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:58:53,330 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 2063 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:53,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 3468 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 07:58:53,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51239 states. [2023-11-19 07:58:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51239 to 39138. [2023-11-19 07:58:55,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39138 states, 28395 states have (on average 1.372107765451664) internal successors, (38961), 28976 states have internal predecessors, (38961), 7929 states have call successors, (7929), 2791 states have call predecessors, (7929), 2774 states have return successors, (7912), 7702 states have call predecessors, (7912), 7912 states have call successors, (7912) [2023-11-19 07:58:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39138 states to 39138 states and 54802 transitions. [2023-11-19 07:58:56,156 INFO L78 Accepts]: Start accepts. Automaton has 39138 states and 54802 transitions. Word has length 81 [2023-11-19 07:58:56,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:56,158 INFO L495 AbstractCegarLoop]: Abstraction has 39138 states and 54802 transitions. [2023-11-19 07:58:56,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:56,158 INFO L276 IsEmpty]: Start isEmpty. Operand 39138 states and 54802 transitions. [2023-11-19 07:58:56,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-19 07:58:56,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:56,164 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2023-11-19 07:58:56,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:58:56,164 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting snd_mts64_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 07:58:56,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:56,165 INFO L85 PathProgramCache]: Analyzing trace with hash 938860592, now seen corresponding path program 1 times [2023-11-19 07:58:56,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:56,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153598108] [2023-11-19 07:58:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:56,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:58:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:58:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:58:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:58:56,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:56,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153598108] [2023-11-19 07:58:56,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153598108] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:56,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198777992] [2023-11-19 07:58:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:56,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:56,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:56,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a76a05-6fc9-4e71-9197-08546469a9b6/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:58:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:56,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:58:56,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:57,061 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:58:57,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:57,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198777992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:57,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:57,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-19 07:58:57,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354459152] [2023-11-19 07:58:57,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:57,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:57,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:57,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:57,065 INFO L87 Difference]: Start difference. First operand 39138 states and 54802 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:58:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:58,909 INFO L93 Difference]: Finished difference Result 39138 states and 54802 transitions. [2023-11-19 07:58:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2023-11-19 07:58:58,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:59,114 INFO L225 Difference]: With dead ends: 39138 [2023-11-19 07:58:59,115 INFO L226 Difference]: Without dead ends: 39137 [2023-11-19 07:58:59,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:59,131 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 17 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:59,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:59,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39137 states.