./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 30e01a73 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_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.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_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:18,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:18,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:15:18,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:18,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:18,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:18,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:18,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:18,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:18,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:18,381 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:18,382 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:18,383 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:18,384 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:18,385 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:18,385 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:18,385 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:18,386 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:18,386 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:18,387 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:18,388 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:18,389 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:18,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:18,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:18,391 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:18,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:18,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:18,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:18,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:18,393 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:15:18,393 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:15:18,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:18,395 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:18,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:18,395 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:18,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:18,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:18,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:18,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:18,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:18,397 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:18,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:18,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:18,398 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:18,399 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:18,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:18,399 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 [2023-11-23 21:15:18,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:18,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:18,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:18,758 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:18,759 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:18,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 21:15:21,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:22,303 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:22,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/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 [2023-11-23 21:15:22,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/data/dcfa1545f/19924881b29a4878b91b3981dcbc215d/FLAG376f0d419 [2023-11-23 21:15:22,368 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/data/dcfa1545f/19924881b29a4878b91b3981dcbc215d [2023-11-23 21:15:22,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:22,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:22,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:22,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:22,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:22,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:22" (1/1) ... [2023-11-23 21:15:22,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19dd684a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:22, skipping insertion in model container [2023-11-23 21:15:22,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:22" (1/1) ... [2023-11-23 21:15:22,520 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:23,015 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-23 21:15:23,016 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] [2023-11-23 21:15:23,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:23,957 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:24,077 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-23 21:15:24,077 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] [2023-11-23 21:15:24,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:24,306 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:24,314 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:24,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24 WrapperNode [2023-11-23 21:15:24,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:24,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:24,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:24,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:24,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,634 INFO L138 Inliner]: procedures = 158, calls = 844, calls flagged for inlining = 75, calls inlined = 63, statements flattened = 1917 [2023-11-23 21:15:24,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:24,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:24,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:24,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:24,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:24,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:24,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:24,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:24,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (1/1) ... [2023-11-23 21:15:24,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:24,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:24,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:24,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:24,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:15:24,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 21:15:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 21:15:24,944 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_open [2023-11-23 21:15:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_open [2023-11-23 21:15:24,944 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:15:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:15:24,945 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-11-23 21:15:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-11-23 21:15:24,945 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_close [2023-11-23 21:15:24,946 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_close [2023-11-23 21:15:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2023-11-23 21:15:24,946 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2023-11-23 21:15:24,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:15:24,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:15:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:15:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:15:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:15:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_command [2023-11-23 21:15:24,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_command [2023-11-23 21:15:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_info [2023-11-23 21:15:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_info [2023-11-23 21:15:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_data [2023-11-23 21:15:24,951 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_data [2023-11-23 21:15:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:15:24,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:15:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_remove [2023-11-23 21:15:24,952 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_remove [2023-11-23 21:15:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_get [2023-11-23 21:15:24,953 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_get [2023-11-23 21:15:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_detach [2023-11-23 21:15:24,953 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_detach [2023-11-23 21:15:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_close [2023-11-23 21:15:24,954 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_close [2023-11-23 21:15:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:15:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:15:24,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:15:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_init [2023-11-23 21:15:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_init [2023-11-23 21:15:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read_char [2023-11-23 21:15:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read_char [2023-11-23 21:15:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 21:15:24,956 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 21:15:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read [2023-11-23 21:15:24,956 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read [2023-11-23 21:15:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe_port [2023-11-23 21:15:24,957 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe_port [2023-11-23 21:15:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_open [2023-11-23 21:15:24,957 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_open [2023-11-23 21:15:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:15:24,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:15:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_smpte_stop [2023-11-23 21:15:24,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_smpte_stop [2023-11-23 21:15:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_disable_readout [2023-11-23 21:15:24,959 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_disable_readout [2023-11-23 21:15:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:15:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:15:24,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:15:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_put [2023-11-23 21:15:24,962 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_put [2023-11-23 21:15:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:15:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:15:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:15:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_enable_readout [2023-11-23 21:15:24,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_enable_readout [2023-11-23 21:15:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 21:15:24,963 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 21:15:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:15:24,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:15:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:15:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_midi [2023-11-23 21:15:24,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_midi [2023-11-23 21:15:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:15:24,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:15:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-23 21:15:24,966 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-23 21:15:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:15:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:15:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_ready [2023-11-23 21:15:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_ready [2023-11-23 21:15:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_probe [2023-11-23 21:15:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_probe [2023-11-23 21:15:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:15:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-23 21:15:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-23 21:15:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:15:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2023-11-23 21:15:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2023-11-23 21:15:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-23 21:15:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-23 21:15:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_unregister_all [2023-11-23 21:15:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_unregister_all [2023-11-23 21:15:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe [2023-11-23 21:15:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe [2023-11-23 21:15:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2023-11-23 21:15:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2023-11-23 21:15:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_output_trigger [2023-11-23 21:15:24,972 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_output_trigger [2023-11-23 21:15:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_input_trigger [2023-11-23 21:15:24,972 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_input_trigger [2023-11-23 21:15:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:15:24,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:15:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2023-11-23 21:15:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2023-11-23 21:15:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2023-11-23 21:15:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2023-11-23 21:15:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2023-11-23 21:15:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2023-11-23 21:15:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2023-11-23 21:15:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2023-11-23 21:15:25,433 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:25,437 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:25,612 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:15:27,280 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:27,777 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:27,778 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:15:27,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:27 BoogieIcfgContainer [2023-11-23 21:15:27,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:27,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:27,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:27,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:27,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:22" (1/3) ... [2023-11-23 21:15:27,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dad7b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:27, skipping insertion in model container [2023-11-23 21:15:27,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:24" (2/3) ... [2023-11-23 21:15:27,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dad7b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:27, skipping insertion in model container [2023-11-23 21:15:27,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:27" (3/3) ... [2023-11-23 21:15:27,793 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 [2023-11-23 21:15:27,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:27,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-23 21:15:27,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:27,907 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=FINITE_AUTOMATA, 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;@229eee0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:27,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-23 21:15:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 705 states, 431 states have (on average 1.4709976798143851) internal successors, (634), 498 states have internal predecessors, (634), 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) [2023-11-23 21:15:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 21:15:27,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:27,933 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] [2023-11-23 21:15:27,934 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)] === [2023-11-23 21:15:27,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:27,942 INFO L85 PathProgramCache]: Analyzing trace with hash 621724609, now seen corresponding path program 1 times [2023-11-23 21:15:27,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:27,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780944196] [2023-11-23 21:15:27,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:27,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:15:28,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780944196] [2023-11-23 21:15:28,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780944196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:28,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:28,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:28,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074723094] [2023-11-23 21:15:28,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:28,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:28,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:28,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:28,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:28,709 INFO L87 Difference]: Start difference. First operand has 705 states, 431 states have (on average 1.4709976798143851) internal successors, (634), 498 states have internal predecessors, (634), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-23 21:15:29,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:29,745 INFO L93 Difference]: Finished difference Result 2043 states and 2979 transitions. [2023-11-23 21:15:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:29,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 47 [2023-11-23 21:15:29,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:29,797 INFO L225 Difference]: With dead ends: 2043 [2023-11-23 21:15:29,797 INFO L226 Difference]: Without dead ends: 1316 [2023-11-23 21:15:29,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:29,814 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 914 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:29,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 1726 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:15:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-11-23 21:15:30,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1279. [2023-11-23 21:15:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 824 states have (on average 1.4271844660194175) internal successors, (1176), 884 states have internal predecessors, (1176), 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) [2023-11-23 21:15:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1812 transitions. [2023-11-23 21:15:30,035 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1812 transitions. Word has length 47 [2023-11-23 21:15:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:30,036 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1812 transitions. [2023-11-23 21:15:30,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-23 21:15:30,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1812 transitions. [2023-11-23 21:15:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 21:15:30,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:30,046 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] [2023-11-23 21:15:30,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:15:30,046 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)] === [2023-11-23 21:15:30,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1595212031, now seen corresponding path program 1 times [2023-11-23 21:15:30,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:30,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703165386] [2023-11-23 21:15:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:30,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:15:30,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703165386] [2023-11-23 21:15:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703165386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770010313] [2023-11-23 21:15:30,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:30,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:30,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:30,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:30,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:30,308 INFO L87 Difference]: Start difference. First operand 1279 states and 1812 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-23 21:15:31,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:31,101 INFO L93 Difference]: Finished difference Result 3708 states and 5238 transitions. [2023-11-23 21:15:31,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:31,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 49 [2023-11-23 21:15:31,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:31,124 INFO L225 Difference]: With dead ends: 3708 [2023-11-23 21:15:31,124 INFO L226 Difference]: Without dead ends: 2442 [2023-11-23 21:15:31,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:31,132 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 846 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:31,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1708 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:15:31,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2023-11-23 21:15:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2406. [2023-11-23 21:15:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1569 states have (on average 1.4219247928616954) internal successors, (2231), 1649 states have internal predecessors, (2231), 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) [2023-11-23 21:15:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3441 transitions. [2023-11-23 21:15:31,329 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3441 transitions. Word has length 49 [2023-11-23 21:15:31,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:31,330 INFO L495 AbstractCegarLoop]: Abstraction has 2406 states and 3441 transitions. [2023-11-23 21:15:31,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-23 21:15:31,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3441 transitions. [2023-11-23 21:15:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 21:15:31,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:31,333 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] [2023-11-23 21:15:31,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:15:31,334 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)] === [2023-11-23 21:15:31,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:31,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1828472648, now seen corresponding path program 1 times [2023-11-23 21:15:31,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:31,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781786540] [2023-11-23 21:15:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:31,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:15:31,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:31,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781786540] [2023-11-23 21:15:31,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781786540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:31,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:31,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:31,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399456539] [2023-11-23 21:15:31,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:31,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:31,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:31,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:31,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:31,515 INFO L87 Difference]: Start difference. First operand 2406 states and 3441 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-23 21:15:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:32,359 INFO L93 Difference]: Finished difference Result 7049 states and 10053 transitions. [2023-11-23 21:15:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:32,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 53 [2023-11-23 21:15:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:32,396 INFO L225 Difference]: With dead ends: 7049 [2023-11-23 21:15:32,396 INFO L226 Difference]: Without dead ends: 4656 [2023-11-23 21:15:32,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:32,410 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 855 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:32,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1761 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:15:32,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2023-11-23 21:15:32,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4616. [2023-11-23 21:15:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 3029 states have (on average 1.4186200066028392) internal successors, (4297), 3151 states have internal predecessors, (4297), 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) [2023-11-23 21:15:32,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 6623 transitions. [2023-11-23 21:15:32,753 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 6623 transitions. Word has length 53 [2023-11-23 21:15:32,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:32,756 INFO L495 AbstractCegarLoop]: Abstraction has 4616 states and 6623 transitions. [2023-11-23 21:15:32,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-23 21:15:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 6623 transitions. [2023-11-23 21:15:32,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 21:15:32,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:32,764 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] [2023-11-23 21:15:32,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:15:32,768 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)] === [2023-11-23 21:15:32,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash -898572680, now seen corresponding path program 1 times [2023-11-23 21:15:32,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:32,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045831756] [2023-11-23 21:15:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:32,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:15:33,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:33,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045831756] [2023-11-23 21:15:33,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045831756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:33,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:33,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:33,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986827713] [2023-11-23 21:15:33,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:33,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:33,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:33,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:33,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:33,061 INFO L87 Difference]: Start difference. First operand 4616 states and 6623 transitions. Second operand has 3 states, 3 states have (on average 9.0) 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) [2023-11-23 21:15:34,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:34,285 INFO L93 Difference]: Finished difference Result 13611 states and 19507 transitions. [2023-11-23 21:15:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:34,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) 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 [2023-11-23 21:15:34,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:34,355 INFO L225 Difference]: With dead ends: 13611 [2023-11-23 21:15:34,355 INFO L226 Difference]: Without dead ends: 8968 [2023-11-23 21:15:34,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:34,378 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 860 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:34,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1817 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:15:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8968 states. [2023-11-23 21:15:34,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8968 to 8898. [2023-11-23 21:15:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8898 states, 5892 states have (on average 1.4180244399185336) internal successors, (8355), 6074 states have internal predecessors, (8355), 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) [2023-11-23 21:15:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8898 states to 8898 states and 12800 transitions. [2023-11-23 21:15:35,000 INFO L78 Accepts]: Start accepts. Automaton has 8898 states and 12800 transitions. Word has length 55 [2023-11-23 21:15:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:35,001 INFO L495 AbstractCegarLoop]: Abstraction has 8898 states and 12800 transitions. [2023-11-23 21:15:35,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) 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) [2023-11-23 21:15:35,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8898 states and 12800 transitions. [2023-11-23 21:15:35,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 21:15:35,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:35,004 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] [2023-11-23 21:15:35,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:15:35,004 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)] === [2023-11-23 21:15:35,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:35,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1907860158, now seen corresponding path program 1 times [2023-11-23 21:15:35,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:35,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696420242] [2023-11-23 21:15:35,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:35,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:15:35,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:35,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696420242] [2023-11-23 21:15:35,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696420242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:35,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:35,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:35,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198028791] [2023-11-23 21:15:35,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:35,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:35,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:35,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:35,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:35,159 INFO L87 Difference]: Start difference. First operand 8898 states and 12800 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:15:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:36,715 INFO L93 Difference]: Finished difference Result 26200 states and 37638 transitions. [2023-11-23 21:15:36,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:36,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 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 60 [2023-11-23 21:15:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:36,854 INFO L225 Difference]: With dead ends: 26200 [2023-11-23 21:15:36,854 INFO L226 Difference]: Without dead ends: 17315 [2023-11-23 21:15:36,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:36,895 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 885 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:36,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 2234 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:15:36,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17315 states. [2023-11-23 21:15:38,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17315 to 17261. [2023-11-23 21:15:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17261 states, 11406 states have (on average 1.4119761529019814) internal successors, (16105), 11731 states have internal predecessors, (16105), 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) [2023-11-23 21:15:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17261 states to 17261 states and 24820 transitions. [2023-11-23 21:15:38,333 INFO L78 Accepts]: Start accepts. Automaton has 17261 states and 24820 transitions. Word has length 60 [2023-11-23 21:15:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:38,333 INFO L495 AbstractCegarLoop]: Abstraction has 17261 states and 24820 transitions. [2023-11-23 21:15:38,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:15:38,335 INFO L276 IsEmpty]: Start isEmpty. Operand 17261 states and 24820 transitions. [2023-11-23 21:15:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 21:15:38,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:38,337 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] [2023-11-23 21:15:38,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:15:38,337 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)] === [2023-11-23 21:15:38,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash 912081906, now seen corresponding path program 1 times [2023-11-23 21:15:38,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:38,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707449300] [2023-11-23 21:15:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:38,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-23 21:15:38,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:38,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707449300] [2023-11-23 21:15:38,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707449300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:38,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:38,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:15:38,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050033471] [2023-11-23 21:15:38,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:38,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:38,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:38,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:38,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:38,570 INFO L87 Difference]: Start difference. First operand 17261 states and 24820 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-23 21:15:40,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:40,094 INFO L93 Difference]: Finished difference Result 34611 states and 49807 transitions. [2023-11-23 21:15:40,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:40,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 65 [2023-11-23 21:15:40,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:40,187 INFO L225 Difference]: With dead ends: 34611 [2023-11-23 21:15:40,188 INFO L226 Difference]: Without dead ends: 17363 [2023-11-23 21:15:40,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:40,255 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 3 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:40,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1686 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:15:40,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17363 states. [2023-11-23 21:15:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17363 to 17363. [2023-11-23 21:15:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17363 states, 11491 states have (on average 1.410408145505178) internal successors, (16207), 11816 states have internal predecessors, (16207), 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) [2023-11-23 21:15:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17363 states to 17363 states and 24956 transitions. [2023-11-23 21:15:41,380 INFO L78 Accepts]: Start accepts. Automaton has 17363 states and 24956 transitions. Word has length 65 [2023-11-23 21:15:41,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:41,381 INFO L495 AbstractCegarLoop]: Abstraction has 17363 states and 24956 transitions. [2023-11-23 21:15:41,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-23 21:15:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 17363 states and 24956 transitions. [2023-11-23 21:15:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 21:15:41,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:41,384 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2023-11-23 21:15:41,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:15:41,385 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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)] === [2023-11-23 21:15:41,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:41,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2113833362, now seen corresponding path program 1 times [2023-11-23 21:15:41,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:41,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602662176] [2023-11-23 21:15:41,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:41,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-23 21:15:41,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:41,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602662176] [2023-11-23 21:15:41,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602662176] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:15:41,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611432353] [2023-11-23 21:15:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:41,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:15:41,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:41,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:15:41,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:15:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:42,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:15:42,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:15:42,440 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-23 21:15:42,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:15:42,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611432353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:42,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:15:42,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-23 21:15:42,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016092876] [2023-11-23 21:15:42,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:42,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:15:42,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:42,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:15:42,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:42,443 INFO L87 Difference]: Start difference. First operand 17363 states and 24956 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-23 21:15:44,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:44,480 INFO L93 Difference]: Finished difference Result 17363 states and 24956 transitions. [2023-11-23 21:15:44,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:15:44,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 69 [2023-11-23 21:15:44,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:44,572 INFO L225 Difference]: With dead ends: 17363 [2023-11-23 21:15:44,572 INFO L226 Difference]: Without dead ends: 17362 [2023-11-23 21:15:44,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:44,584 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 8 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:44,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2524 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:15:44,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17362 states. [2023-11-23 21:15:45,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17362 to 17362. [2023-11-23 21:15:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17362 states, 11491 states have (on average 1.4089287268296928) internal successors, (16190), 11815 states have internal predecessors, (16190), 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) [2023-11-23 21:15:45,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17362 states to 17362 states and 24939 transitions. [2023-11-23 21:15:45,644 INFO L78 Accepts]: Start accepts. Automaton has 17362 states and 24939 transitions. Word has length 69 [2023-11-23 21:15:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:45,646 INFO L495 AbstractCegarLoop]: Abstraction has 17362 states and 24939 transitions. [2023-11-23 21:15:45,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-23 21:15:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 17362 states and 24939 transitions. [2023-11-23 21:15:45,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 21:15:45,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:45,652 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] [2023-11-23 21:15:45,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:15:45,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33264be7-682a-41bc-b430-2a0ee5fbab35/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:15:45,868 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2023-11-23 21:15:45,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:45,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1766722500, now seen corresponding path program 1 times [2023-11-23 21:15:45,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:45,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88515166] [2023-11-23 21:15:45,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:45,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:15:46,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:46,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88515166] [2023-11-23 21:15:46,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88515166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:46,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:46,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:46,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665674617] [2023-11-23 21:15:46,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:46,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:46,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:46,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:46,080 INFO L87 Difference]: Start difference. First operand 17362 states and 24939 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:15:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:48,128 INFO L93 Difference]: Finished difference Result 49808 states and 71392 transitions. [2023-11-23 21:15:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:48,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 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 74 [2023-11-23 21:15:48,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:48,297 INFO L225 Difference]: With dead ends: 49808 [2023-11-23 21:15:48,297 INFO L226 Difference]: Without dead ends: 32459 [2023-11-23 21:15:48,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:48,366 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 839 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:48,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1812 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:15:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32459 states. [2023-11-23 21:15:50,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32459 to 32388. [2023-11-23 21:15:50,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32388 states, 21646 states have (on average 1.4119467800055439) internal successors, (30563), 22226 states have internal predecessors, (30563), 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) [2023-11-23 21:15:50,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32388 states to 32388 states and 46404 transitions. [2023-11-23 21:15:50,456 INFO L78 Accepts]: Start accepts. Automaton has 32388 states and 46404 transitions. Word has length 74 [2023-11-23 21:15:50,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:50,456 INFO L495 AbstractCegarLoop]: Abstraction has 32388 states and 46404 transitions. [2023-11-23 21:15:50,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:15:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand 32388 states and 46404 transitions. [2023-11-23 21:15:50,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:15:50,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:50,460 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] [2023-11-23 21:15:50,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:15:50,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting snd_mts64_unregister_allErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-23 21:15:50,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:50,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1104325083, now seen corresponding path program 1 times [2023-11-23 21:15:50,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:50,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293030280] [2023-11-23 21:15:50,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:50,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-23 21:15:50,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:50,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293030280] [2023-11-23 21:15:50,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293030280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:50,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:50,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:15:50,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644302919] [2023-11-23 21:15:50,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:50,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:50,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:50,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:50,947 INFO L87 Difference]: Start difference. First operand 32388 states and 46404 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-23 21:15:53,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:53,096 INFO L93 Difference]: Finished difference Result 32388 states and 46404 transitions. [2023-11-23 21:15:53,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 70 [2023-11-23 21:15:53,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:53,246 INFO L225 Difference]: With dead ends: 32388 [2023-11-23 21:15:53,246 INFO L226 Difference]: Without dead ends: 32147 [2023-11-23 21:15:53,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:53,260 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 2 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:53,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1682 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 21:15:53,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32147 states. [2023-11-23 21:15:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32147 to 32067. [2023-11-23 21:15:55,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32067 states, 21394 states have (on average 1.4114237636720577) internal successors, (30196), 21973 states have internal predecessors, (30196), 7862 states have call successors, (7862), 2773 states have call predecessors, (7862), 2773 states have return successors, (7862), 7652 states have call predecessors, (7862), 7862 states have call successors, (7862) [2023-11-23 21:15:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32067 states to 32067 states and 45920 transitions. [2023-11-23 21:15:55,275 INFO L78 Accepts]: Start accepts. Automaton has 32067 states and 45920 transitions. Word has length 70 [2023-11-23 21:15:55,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:55,276 INFO L495 AbstractCegarLoop]: Abstraction has 32067 states and 45920 transitions. [2023-11-23 21:15:55,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-23 21:15:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 32067 states and 45920 transitions. [2023-11-23 21:15:55,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:15:55,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:55,284 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:55,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:15:55,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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)] === [2023-11-23 21:15:55,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash -538647953, now seen corresponding path program 1 times [2023-11-23 21:15:55,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:55,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726884529] [2023-11-23 21:15:55,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:55,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-23 21:15:55,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:55,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726884529] [2023-11-23 21:15:55,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726884529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:55,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:55,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:55,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773107318] [2023-11-23 21:15:55,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:55,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:55,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:55,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:55,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:55,689 INFO L87 Difference]: Start difference. First operand 32067 states and 45920 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:15:57,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:57,236 INFO L93 Difference]: Finished difference Result 48809 states and 69808 transitions. [2023-11-23 21:15:57,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:57,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-23 21:15:57,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:57,330 INFO L225 Difference]: With dead ends: 48809 [2023-11-23 21:15:57,330 INFO L226 Difference]: Without dead ends: 16755 [2023-11-23 21:15:57,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:57,433 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 933 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:57,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 843 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:15:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16755 states. [2023-11-23 21:15:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16755 to 16755. [2023-11-23 21:15:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16755 states, 11162 states have (on average 1.4057516574090665) internal successors, (15691), 11485 states have internal predecessors, (15691), 4092 states have call successors, (4092), 1463 states have call predecessors, (4092), 1463 states have return successors, (4092), 3972 states have call predecessors, (4092), 4092 states have call successors, (4092) [2023-11-23 21:15:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16755 states to 16755 states and 23875 transitions. [2023-11-23 21:15:58,503 INFO L78 Accepts]: Start accepts. Automaton has 16755 states and 23875 transitions. Word has length 84 [2023-11-23 21:15:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:58,504 INFO L495 AbstractCegarLoop]: Abstraction has 16755 states and 23875 transitions. [2023-11-23 21:15:58,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:15:58,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16755 states and 23875 transitions. [2023-11-23 21:15:58,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 21:15:58,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:58,508 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:58,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:15:58,509 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2023-11-23 21:15:58,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1238228798, now seen corresponding path program 1 times [2023-11-23 21:15:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:58,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46224238] [2023-11-23 21:15:58,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:58,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-23 21:15:58,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:58,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46224238] [2023-11-23 21:15:58,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46224238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:58,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:58,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:58,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107129489] [2023-11-23 21:15:58,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:58,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:58,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:58,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:58,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:58,772 INFO L87 Difference]: Start difference. First operand 16755 states and 23875 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:16:01,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:01,165 INFO L93 Difference]: Finished difference Result 41941 states and 59718 transitions. [2023-11-23 21:16:01,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:01,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 161 [2023-11-23 21:16:01,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:01,284 INFO L225 Difference]: With dead ends: 41941 [2023-11-23 21:16:01,284 INFO L226 Difference]: Without dead ends: 25331 [2023-11-23 21:16:01,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:01,341 INFO L413 NwaCegarLoop]: 1194 mSDtfsCounter, 885 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:01,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 2007 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:16:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25331 states.