./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/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_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ --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-9bd2c7f [2023-11-19 04:14:13,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:14:13,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:14:13,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:14:13,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:14:13,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:14:13,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:14:13,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:14:13,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:14:13,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:14:13,277 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:14:13,278 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:14:13,278 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:14:13,280 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:14:13,281 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:14:13,281 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:14:13,282 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:14:13,282 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:14:13,282 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:14:13,283 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:14:13,284 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:14:13,284 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:14:13,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:14:13,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:14:13,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:14:13,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:14:13,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:14:13,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:14:13,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:14:13,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:14:13,290 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:14:13,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:14:13,291 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:14:13,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:14:13,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:14:13,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:13,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:14:13,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:14:13,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:14:13,294 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:14:13,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:14:13,297 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:14:13,297 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:14:13,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:14:13,298 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_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 [2023-11-19 04:14:13,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:14:13,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:14:13,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:14:13,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:14:13,646 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:14:13,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2023-11-19 04:14:16,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:17,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:17,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2023-11-19 04:14:17,241 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/data/4162c673e/ff85f50913874e95b77ad31757da2c17/FLAGb3c179e4c [2023-11-19 04:14:17,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/data/4162c673e/ff85f50913874e95b77ad31757da2c17 [2023-11-19 04:14:17,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:17,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:17,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:17,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:17,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:17,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:17" (1/1) ... [2023-11-19 04:14:17,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc86b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:17, skipping insertion in model container [2023-11-19 04:14:17,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:17" (1/1) ... [2023-11-19 04:14:17,372 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:17,852 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-19 04:14:17,852 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2023-11-19 04:14:18,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:18,588 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:14:18,729 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-19 04:14:18,730 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2023-11-19 04:14:18,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:19,119 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:14:19,127 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:14:19,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19 WrapperNode [2023-11-19 04:14:19,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:19,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:19,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:14:19,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:14:19,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,353 INFO L138 Inliner]: procedures = 158, calls = 844, calls flagged for inlining = 75, calls inlined = 63, statements flattened = 1917 [2023-11-19 04:14:19,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:19,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:14:19,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:14:19,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:14:19,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:14:19,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:14:19,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:14:19,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:14:19,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (1/1) ... [2023-11-19 04:14:19,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:19,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:19,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:14:19,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:14:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:14:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 04:14:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 04:14:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_open [2023-11-19 04:14:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_open [2023-11-19 04:14:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:14:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:14:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-11-19 04:14:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-11-19 04:14:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_close [2023-11-19 04:14:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_close [2023-11-19 04:14:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2023-11-19 04:14:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2023-11-19 04:14:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:14:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:14:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:14:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:14:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:14:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_command [2023-11-19 04:14:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_command [2023-11-19 04:14:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_info [2023-11-19 04:14:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_info [2023-11-19 04:14:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_data [2023-11-19 04:14:19,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_data [2023-11-19 04:14:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:14:19,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:14:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_remove [2023-11-19 04:14:19,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_remove [2023-11-19 04:14:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_get [2023-11-19 04:14:19,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_get [2023-11-19 04:14:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_detach [2023-11-19 04:14:19,629 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_detach [2023-11-19 04:14:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_close [2023-11-19 04:14:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_close [2023-11-19 04:14:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:14:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:14:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:14:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_init [2023-11-19 04:14:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_init [2023-11-19 04:14:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read_char [2023-11-19 04:14:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read_char [2023-11-19 04:14:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 04:14:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 04:14:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read [2023-11-19 04:14:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read [2023-11-19 04:14:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe_port [2023-11-19 04:14:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe_port [2023-11-19 04:14:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_open [2023-11-19 04:14:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_open [2023-11-19 04:14:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:14:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:14:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_smpte_stop [2023-11-19 04:14:19,634 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_smpte_stop [2023-11-19 04:14:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_disable_readout [2023-11-19 04:14:19,634 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_disable_readout [2023-11-19 04:14:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:14:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 04:14:19,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 04:14:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:14:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_put [2023-11-19 04:14:19,637 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_put [2023-11-19 04:14:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:14:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:14:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:14:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_enable_readout [2023-11-19 04:14:19,638 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_enable_readout [2023-11-19 04:14:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 04:14:19,638 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 04:14:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:14:19,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:14:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:14:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_midi [2023-11-19 04:14:19,639 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_midi [2023-11-19 04:14:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 04:14:19,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 04:14:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-19 04:14:19,640 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-19 04:14:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:14:19,640 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:14:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_ready [2023-11-19 04:14:19,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_ready [2023-11-19 04:14:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_probe [2023-11-19 04:14:19,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_probe [2023-11-19 04:14:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:14:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-19 04:14:19,642 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-19 04:14:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:14:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2023-11-19 04:14:19,643 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2023-11-19 04:14:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 04:14:19,643 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 04:14:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_unregister_all [2023-11-19 04:14:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_unregister_all [2023-11-19 04:14:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe [2023-11-19 04:14:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe [2023-11-19 04:14:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2023-11-19 04:14:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2023-11-19 04:14:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_output_trigger [2023-11-19 04:14:19,645 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_output_trigger [2023-11-19 04:14:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:14:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_input_trigger [2023-11-19 04:14:19,645 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_input_trigger [2023-11-19 04:14:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:14:19,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:14:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2023-11-19 04:14:19,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2023-11-19 04:14:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:14:19,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:14:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2023-11-19 04:14:19,647 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2023-11-19 04:14:19,648 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2023-11-19 04:14:19,648 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2023-11-19 04:14:19,648 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2023-11-19 04:14:19,648 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2023-11-19 04:14:20,118 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:14:20,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:14:20,342 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:14:22,089 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:14:22,538 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:14:22,538 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:14:22,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:22 BoogieIcfgContainer [2023-11-19 04:14:22,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:14:22,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:14:22,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:14:22,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:14:22,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:17" (1/3) ... [2023-11-19 04:14:22,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62969e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:22, skipping insertion in model container [2023-11-19 04:14:22,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:19" (2/3) ... [2023-11-19 04:14:22,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62969e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:22, skipping insertion in model container [2023-11-19 04:14:22,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:22" (3/3) ... [2023-11-19 04:14:22,556 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2023-11-19 04:14:22,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:14:22,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-19 04:14:22,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:14:22,648 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;@39c698de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:14:22,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-19 04:14:22,664 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) [2023-11-19 04:14:22,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 04:14:22,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:22,681 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] [2023-11-19 04:14:22,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 04:14:22,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:22,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1545324356, now seen corresponding path program 1 times [2023-11-19 04:14:22,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:22,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869161178] [2023-11-19 04:14:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:22,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:14:23,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:23,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869161178] [2023-11-19 04:14:23,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869161178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:23,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:23,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:23,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102217452] [2023-11-19 04:14:23,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:23,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:23,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:23,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:23,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:23,554 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) [2023-11-19 04:14:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:24,523 INFO L93 Difference]: Finished difference Result 2043 states and 2979 transitions. [2023-11-19 04:14:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:24,525 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 [2023-11-19 04:14:24,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:24,556 INFO L225 Difference]: With dead ends: 2043 [2023-11-19 04:14:24,556 INFO L226 Difference]: Without dead ends: 1316 [2023-11-19 04:14:24,572 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 [2023-11-19 04:14:24,580 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 914 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:24,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 1726 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:14:24,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-11-19 04:14:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1279. [2023-11-19 04:14:24,774 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) [2023-11-19 04:14:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1812 transitions. [2023-11-19 04:14:24,793 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1812 transitions. Word has length 47 [2023-11-19 04:14:24,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:24,794 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1812 transitions. [2023-11-19 04:14:24,794 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) [2023-11-19 04:14:24,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1812 transitions. [2023-11-19 04:14:24,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 04:14:24,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:24,804 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:24,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:14:24,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 04:14:24,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:24,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2120294761, now seen corresponding path program 1 times [2023-11-19 04:14:24,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:24,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889968220] [2023-11-19 04:14:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:24,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:14:25,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889968220] [2023-11-19 04:14:25,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889968220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:25,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:25,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:25,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143282726] [2023-11-19 04:14:25,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:25,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:25,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:25,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:25,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:25,116 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) [2023-11-19 04:14:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:26,134 INFO L93 Difference]: Finished difference Result 3708 states and 5238 transitions. [2023-11-19 04:14:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:26,134 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 [2023-11-19 04:14:26,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:26,160 INFO L225 Difference]: With dead ends: 3708 [2023-11-19 04:14:26,160 INFO L226 Difference]: Without dead ends: 2442 [2023-11-19 04:14:26,167 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 [2023-11-19 04:14:26,173 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 846 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:26,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1708 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 04:14:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2023-11-19 04:14:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2406. [2023-11-19 04:14:26,318 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) [2023-11-19 04:14:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3441 transitions. [2023-11-19 04:14:26,341 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3441 transitions. Word has length 49 [2023-11-19 04:14:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:26,342 INFO L495 AbstractCegarLoop]: Abstraction has 2406 states and 3441 transitions. [2023-11-19 04:14:26,342 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) [2023-11-19 04:14:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3441 transitions. [2023-11-19 04:14:26,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 04:14:26,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:26,345 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] [2023-11-19 04:14:26,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:14:26,346 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 04:14:26,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:26,346 INFO L85 PathProgramCache]: Analyzing trace with hash -391719933, now seen corresponding path program 1 times [2023-11-19 04:14:26,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:26,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742322100] [2023-11-19 04:14:26,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:26,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:26,569 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:14:26,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:26,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742322100] [2023-11-19 04:14:26,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742322100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:26,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:26,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:26,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283122508] [2023-11-19 04:14:26,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:26,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:26,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:26,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:26,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:26,572 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) [2023-11-19 04:14:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:27,569 INFO L93 Difference]: Finished difference Result 7049 states and 10053 transitions. [2023-11-19 04:14:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:27,569 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 [2023-11-19 04:14:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:27,604 INFO L225 Difference]: With dead ends: 7049 [2023-11-19 04:14:27,604 INFO L226 Difference]: Without dead ends: 4656 [2023-11-19 04:14:27,615 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 [2023-11-19 04:14:27,616 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 855 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:27,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1761 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:14:27,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2023-11-19 04:14:27,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4616. [2023-11-19 04:14:27,869 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) [2023-11-19 04:14:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 6623 transitions. [2023-11-19 04:14:27,972 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 6623 transitions. Word has length 53 [2023-11-19 04:14:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:27,974 INFO L495 AbstractCegarLoop]: Abstraction has 4616 states and 6623 transitions. [2023-11-19 04:14:27,975 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) [2023-11-19 04:14:27,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 6623 transitions. [2023-11-19 04:14:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 04:14:27,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:27,978 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:27,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:14:27,986 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting snd_mts64_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 04:14:27,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:27,987 INFO L85 PathProgramCache]: Analyzing trace with hash 95105013, now seen corresponding path program 1 times [2023-11-19 04:14:27,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:27,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253050228] [2023-11-19 04:14:27,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:27,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:14:28,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:28,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253050228] [2023-11-19 04:14:28,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253050228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:28,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:28,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:28,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810696154] [2023-11-19 04:14:28,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:28,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:28,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:28,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:28,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:28,199 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) [2023-11-19 04:14:29,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:29,423 INFO L93 Difference]: Finished difference Result 13611 states and 19507 transitions. [2023-11-19 04:14:29,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:29,423 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 [2023-11-19 04:14:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:29,518 INFO L225 Difference]: With dead ends: 13611 [2023-11-19 04:14:29,519 INFO L226 Difference]: Without dead ends: 8968 [2023-11-19 04:14:29,551 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 [2023-11-19 04:14:29,554 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 [2023-11-19 04:14:29,555 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] [2023-11-19 04:14:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8968 states. [2023-11-19 04:14:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8968 to 8898. [2023-11-19 04:14:30,214 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) [2023-11-19 04:14:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8898 states to 8898 states and 12800 transitions. [2023-11-19 04:14:30,275 INFO L78 Accepts]: Start accepts. Automaton has 8898 states and 12800 transitions. Word has length 55 [2023-11-19 04:14:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:30,275 INFO L495 AbstractCegarLoop]: Abstraction has 8898 states and 12800 transitions. [2023-11-19 04:14:30,275 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) [2023-11-19 04:14:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8898 states and 12800 transitions. [2023-11-19 04:14:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 04:14:30,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:30,277 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] [2023-11-19 04:14:30,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:14:30,278 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 04:14:30,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:30,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2132880822, now seen corresponding path program 1 times [2023-11-19 04:14:30,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:30,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372708247] [2023-11-19 04:14:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:30,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:14:30,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:30,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372708247] [2023-11-19 04:14:30,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372708247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:30,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:30,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:30,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038162083] [2023-11-19 04:14:30,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:30,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:30,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:30,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:30,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:30,429 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) [2023-11-19 04:14:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:31,675 INFO L93 Difference]: Finished difference Result 26200 states and 37638 transitions. [2023-11-19 04:14:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:31,692 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 [2023-11-19 04:14:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:31,909 INFO L225 Difference]: With dead ends: 26200 [2023-11-19 04:14:31,909 INFO L226 Difference]: Without dead ends: 17315 [2023-11-19 04:14:31,959 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 [2023-11-19 04:14:31,960 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 885 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:31,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 2234 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 04:14:31,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17315 states. [2023-11-19 04:14:33,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17315 to 17261. [2023-11-19 04:14:33,175 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) [2023-11-19 04:14:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17261 states to 17261 states and 24820 transitions. [2023-11-19 04:14:33,322 INFO L78 Accepts]: Start accepts. Automaton has 17261 states and 24820 transitions. Word has length 60 [2023-11-19 04:14:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:33,324 INFO L495 AbstractCegarLoop]: Abstraction has 17261 states and 24820 transitions. [2023-11-19 04:14:33,324 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) [2023-11-19 04:14:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 17261 states and 24820 transitions. [2023-11-19 04:14:33,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 04:14:33,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:33,328 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] [2023-11-19 04:14:33,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:14:33,329 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting snd_mts64_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 04:14:33,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1614279243, now seen corresponding path program 1 times [2023-11-19 04:14:33,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:33,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878374394] [2023-11-19 04:14:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:33,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:33,582 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 04:14:33,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:33,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878374394] [2023-11-19 04:14:33,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878374394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:33,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:33,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:14:33,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17819591] [2023-11-19 04:14:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:33,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:33,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:33,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:33,585 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) [2023-11-19 04:14:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:35,023 INFO L93 Difference]: Finished difference Result 34611 states and 49807 transitions. [2023-11-19 04:14:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:35,024 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 [2023-11-19 04:14:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:35,115 INFO L225 Difference]: With dead ends: 34611 [2023-11-19 04:14:35,115 INFO L226 Difference]: Without dead ends: 17363 [2023-11-19 04:14:35,183 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 [2023-11-19 04:14:35,184 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 3 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:35,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1686 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:14:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17363 states. [2023-11-19 04:14:36,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17363 to 17363. [2023-11-19 04:14:36,279 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) [2023-11-19 04:14:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17363 states to 17363 states and 24956 transitions. [2023-11-19 04:14:36,491 INFO L78 Accepts]: Start accepts. Automaton has 17363 states and 24956 transitions. Word has length 65 [2023-11-19 04:14:36,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:36,492 INFO L495 AbstractCegarLoop]: Abstraction has 17363 states and 24956 transitions. [2023-11-19 04:14:36,492 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) [2023-11-19 04:14:36,492 INFO L276 IsEmpty]: Start isEmpty. Operand 17363 states and 24956 transitions. [2023-11-19 04:14:36,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 04:14:36,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:36,495 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] [2023-11-19 04:14:36,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:14:36,495 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)] === [2023-11-19 04:14:36,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1033421143, now seen corresponding path program 1 times [2023-11-19 04:14:36,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:36,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273774943] [2023-11-19 04:14:36,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:36,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 04:14:36,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:36,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273774943] [2023-11-19 04:14:36,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273774943] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:14:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564661380] [2023-11-19 04:14:36,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:36,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:14:36,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:36,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:14:36,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:14:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:37,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:14:37,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 04:14:37,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:37,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564661380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:37,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:14:37,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 04:14:37,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449363820] [2023-11-19 04:14:37,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:37,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:14:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:14:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:14:37,475 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) [2023-11-19 04:14:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:38,687 INFO L93 Difference]: Finished difference Result 17363 states and 24956 transitions. [2023-11-19 04:14:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:14:38,687 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 [2023-11-19 04:14:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:38,776 INFO L225 Difference]: With dead ends: 17363 [2023-11-19 04:14:38,776 INFO L226 Difference]: Without dead ends: 17362 [2023-11-19 04:14:38,783 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 [2023-11-19 04:14:38,784 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 8 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:38,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2524 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 04:14:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17362 states. [2023-11-19 04:14:39,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17362 to 17362. [2023-11-19 04:14:39,925 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) [2023-11-19 04:14:40,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17362 states to 17362 states and 24939 transitions. [2023-11-19 04:14:40,011 INFO L78 Accepts]: Start accepts. Automaton has 17362 states and 24939 transitions. Word has length 69 [2023-11-19 04:14:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:40,012 INFO L495 AbstractCegarLoop]: Abstraction has 17362 states and 24939 transitions. [2023-11-19 04:14:40,012 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) [2023-11-19 04:14:40,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17362 states and 24939 transitions. [2023-11-19 04:14:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 04:14:40,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:40,015 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] [2023-11-19 04:14:40,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:14:40,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb507c2-4aab-405d-a524-5762c22e14c9/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:14:40,229 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)] === [2023-11-19 04:14:40,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash -126915863, now seen corresponding path program 1 times [2023-11-19 04:14:40,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:40,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997175196] [2023-11-19 04:14:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:40,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:14:40,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:40,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997175196] [2023-11-19 04:14:40,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997175196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:40,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:40,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:40,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815619946] [2023-11-19 04:14:40,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:40,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:40,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:40,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:40,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:40,425 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) [2023-11-19 04:14:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:42,625 INFO L93 Difference]: Finished difference Result 49808 states and 71392 transitions. [2023-11-19 04:14:42,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:42,625 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 [2023-11-19 04:14:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:42,795 INFO L225 Difference]: With dead ends: 49808 [2023-11-19 04:14:42,796 INFO L226 Difference]: Without dead ends: 32459 [2023-11-19 04:14:42,845 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 [2023-11-19 04:14:42,846 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 839 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:42,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1812 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 04:14:42,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32459 states. [2023-11-19 04:14:44,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32459 to 32388. [2023-11-19 04:14:44,797 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) [2023-11-19 04:14:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32388 states to 32388 states and 46404 transitions. [2023-11-19 04:14:44,946 INFO L78 Accepts]: Start accepts. Automaton has 32388 states and 46404 transitions. Word has length 74 [2023-11-19 04:14:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:44,947 INFO L495 AbstractCegarLoop]: Abstraction has 32388 states and 46404 transitions. [2023-11-19 04:14:44,947 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) [2023-11-19 04:14:44,947 INFO L276 IsEmpty]: Start isEmpty. Operand 32388 states and 46404 transitions. [2023-11-19 04:14:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 04:14:44,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:44,949 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] [2023-11-19 04:14:44,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:14:44,949 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)] === [2023-11-19 04:14:44,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1971284662, now seen corresponding path program 1 times [2023-11-19 04:14:44,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:44,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717965685] [2023-11-19 04:14:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:44,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-19 04:14:45,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:45,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717965685] [2023-11-19 04:14:45,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717965685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:45,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:45,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:14:45,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775544740] [2023-11-19 04:14:45,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:45,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:45,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:45,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:45,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:45,116 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) [2023-11-19 04:14:46,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:46,644 INFO L93 Difference]: Finished difference Result 32388 states and 46404 transitions. [2023-11-19 04:14:46,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:46,645 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 [2023-11-19 04:14:46,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:46,818 INFO L225 Difference]: With dead ends: 32388 [2023-11-19 04:14:46,818 INFO L226 Difference]: Without dead ends: 32147 [2023-11-19 04:14:46,832 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 [2023-11-19 04:14:46,835 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 2 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:46,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1682 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:14:46,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32147 states. [2023-11-19 04:14:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32147 to 32067. [2023-11-19 04:14:48,641 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) [2023-11-19 04:14:49,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32067 states to 32067 states and 45920 transitions. [2023-11-19 04:14:49,042 INFO L78 Accepts]: Start accepts. Automaton has 32067 states and 45920 transitions. Word has length 70 [2023-11-19 04:14:49,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:49,044 INFO L495 AbstractCegarLoop]: Abstraction has 32067 states and 45920 transitions. [2023-11-19 04:14:49,044 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) [2023-11-19 04:14:49,044 INFO L276 IsEmpty]: Start isEmpty. Operand 32067 states and 45920 transitions. [2023-11-19 04:14:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 04:14:49,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:49,047 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] [2023-11-19 04:14:49,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 04:14:49,048 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)] === [2023-11-19 04:14:49,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1620480587, now seen corresponding path program 1 times [2023-11-19 04:14:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:49,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16453538] [2023-11-19 04:14:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 04:14:49,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:49,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16453538] [2023-11-19 04:14:49,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16453538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:49,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:49,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:49,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216382299] [2023-11-19 04:14:49,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:49,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:49,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:49,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:49,223 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) [2023-11-19 04:14:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:50,438 INFO L93 Difference]: Finished difference Result 48809 states and 69808 transitions. [2023-11-19 04:14:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:50,439 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 [2023-11-19 04:14:50,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:50,532 INFO L225 Difference]: With dead ends: 48809 [2023-11-19 04:14:50,532 INFO L226 Difference]: Without dead ends: 16755 [2023-11-19 04:14:50,638 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 [2023-11-19 04:14:50,639 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, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:50,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 843 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:14:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16755 states. [2023-11-19 04:14:51,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16755 to 16755. [2023-11-19 04:14:51,857 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) [2023-11-19 04:14:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16755 states to 16755 states and 23875 transitions. [2023-11-19 04:14:51,929 INFO L78 Accepts]: Start accepts. Automaton has 16755 states and 23875 transitions. Word has length 84 [2023-11-19 04:14:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:51,930 INFO L495 AbstractCegarLoop]: Abstraction has 16755 states and 23875 transitions. [2023-11-19 04:14:51,930 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) [2023-11-19 04:14:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 16755 states and 23875 transitions. [2023-11-19 04:14:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-19 04:14:51,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:51,934 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] [2023-11-19 04:14:51,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 04:14:51,934 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)] === [2023-11-19 04:14:51,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:51,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2015907157, now seen corresponding path program 1 times [2023-11-19 04:14:51,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:51,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435234456] [2023-11-19 04:14:51,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:51,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-19 04:14:52,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:52,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435234456] [2023-11-19 04:14:52,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435234456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:52,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:52,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:52,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731152321] [2023-11-19 04:14:52,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:52,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:52,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:52,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:52,189 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) [2023-11-19 04:14:53,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:53,756 INFO L93 Difference]: Finished difference Result 41941 states and 59718 transitions. [2023-11-19 04:14:53,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:53,757 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 [2023-11-19 04:14:53,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:53,870 INFO L225 Difference]: With dead ends: 41941 [2023-11-19 04:14:53,870 INFO L226 Difference]: Without dead ends: 25331 [2023-11-19 04:14:53,915 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 [2023-11-19 04:14:53,916 INFO L413 NwaCegarLoop]: 1194 mSDtfsCounter, 885 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:53,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 2007 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 04:14:53,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25331 states. [2023-11-19 04:14:55,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25331 to 25295. [2023-11-19 04:14:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25295 states, 16856 states have (on average 1.4011034646416707) internal successors, (23617), 17331 states have internal predecessors, (23617), 6178 states have call successors, (6178), 2223 states have call predecessors, (6178), 2223 states have return successors, (6178), 5994 states have call predecessors, (6178), 6178 states have call successors, (6178) [2023-11-19 04:14:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25295 states to 25295 states and 35973 transitions. [2023-11-19 04:14:55,459 INFO L78 Accepts]: Start accepts. Automaton has 25295 states and 35973 transitions. Word has length 161 [2023-11-19 04:14:55,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:55,459 INFO L495 AbstractCegarLoop]: Abstraction has 25295 states and 35973 transitions. [2023-11-19 04:14:55,460 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2023-11-19 04:14:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 25295 states and 35973 transitions. [2023-11-19 04:14:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-19 04:14:55,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:55,464 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:55,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 04:14:55,464 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-19 04:14:55,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:55,465 INFO L85 PathProgramCache]: Analyzing trace with hash 861789080, now seen corresponding path program 1 times [2023-11-19 04:14:55,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:55,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095865151] [2023-11-19 04:14:55,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:55,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-19 04:14:55,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:55,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095865151] [2023-11-19 04:14:55,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095865151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:55,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:55,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:55,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868758032] [2023-11-19 04:14:55,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:55,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:55,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:55,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:55,730 INFO L87 Difference]: Start difference. First operand 25295 states and 35973 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)