./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:19,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:19,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-12 02:15:19,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:19,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:19,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:19,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:19,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:19,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:19,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:19,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:19,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:19,858 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:19,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:19,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:19,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:19,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:19,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:19,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:19,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:19,864 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:15:19,865 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:15:19,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:19,866 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:19,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:19,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:19,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:19,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:19,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:19,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:19,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:19,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:19,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:19,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:19,873 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:19,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:19,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:19,873 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:19,874 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 [2023-11-12 02:15:20,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:20,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:20,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:20,201 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:20,202 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:20,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/../../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 [2023-11-12 02:15:23,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:24,372 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:24,372 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/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 [2023-11-12 02:15:24,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/data/b58add816/317c40267d024e2185dc996b4310f3fe/FLAGcca63df6a [2023-11-12 02:15:24,437 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/data/b58add816/317c40267d024e2185dc996b4310f3fe [2023-11-12 02:15:24,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:24,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:24,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:24,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:24,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:24,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:24" (1/1) ... [2023-11-12 02:15:24,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0d14ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:24, skipping insertion in model container [2023-11-12 02:15:24,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:24" (1/1) ... [2023-11-12 02:15:24,571 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:25,037 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-12 02:15:25,038 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2023-11-12 02:15:25,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:25,868 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:25,976 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2023-11-12 02:15:25,977 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2023-11-12 02:15:26,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:26,303 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:26,311 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:26,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26 WrapperNode [2023-11-12 02:15:26,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:26,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:26,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:26,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:26,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,547 INFO L138 Inliner]: procedures = 158, calls = 844, calls flagged for inlining = 75, calls inlined = 63, statements flattened = 1917 [2023-11-12 02:15:26,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:26,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:26,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:26,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:26,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:26,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:26,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:26,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:26,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (1/1) ... [2023-11-12 02:15:26,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:26,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:26,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:26,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:15:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-12 02:15:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-12 02:15:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_open [2023-11-12 02:15:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_open [2023-11-12 02:15:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 02:15:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 02:15:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-11-12 02:15:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-11-12 02:15:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_close [2023-11-12 02:15:26,821 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_close [2023-11-12 02:15:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2023-11-12 02:15:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2023-11-12 02:15:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:15:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:15:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:15:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 02:15:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 02:15:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_command [2023-11-12 02:15:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_command [2023-11-12 02:15:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_info [2023-11-12 02:15:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_info [2023-11-12 02:15:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_data [2023-11-12 02:15:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_data [2023-11-12 02:15:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:15:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:15:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_remove [2023-11-12 02:15:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_remove [2023-11-12 02:15:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_get [2023-11-12 02:15:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_get [2023-11-12 02:15:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_detach [2023-11-12 02:15:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_detach [2023-11-12 02:15:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_close [2023-11-12 02:15:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_close [2023-11-12 02:15:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:15:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:15:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_init [2023-11-12 02:15:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_init [2023-11-12 02:15:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read_char [2023-11-12 02:15:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read_char [2023-11-12 02:15:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-12 02:15:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-12 02:15:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read [2023-11-12 02:15:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read [2023-11-12 02:15:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe_port [2023-11-12 02:15:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe_port [2023-11-12 02:15:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_open [2023-11-12 02:15:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_open [2023-11-12 02:15:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:15:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:15:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_smpte_stop [2023-11-12 02:15:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_smpte_stop [2023-11-12 02:15:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_disable_readout [2023-11-12 02:15:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_disable_readout [2023-11-12 02:15:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:15:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-12 02:15:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-12 02:15:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_put [2023-11-12 02:15:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_put [2023-11-12 02:15:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:15:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 02:15:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_enable_readout [2023-11-12 02:15:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_enable_readout [2023-11-12 02:15:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-12 02:15:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-12 02:15:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:15:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:15:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:15:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_midi [2023-11-12 02:15:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_midi [2023-11-12 02:15:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-12 02:15:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-12 02:15:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-12 02:15:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-12 02:15:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:15:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:15:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_ready [2023-11-12 02:15:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_ready [2023-11-12 02:15:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_probe [2023-11-12 02:15:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_probe [2023-11-12 02:15:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-12 02:15:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-12 02:15:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:15:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2023-11-12 02:15:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2023-11-12 02:15:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-12 02:15:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-12 02:15:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_unregister_all [2023-11-12 02:15:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_unregister_all [2023-11-12 02:15:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe [2023-11-12 02:15:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe [2023-11-12 02:15:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2023-11-12 02:15:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2023-11-12 02:15:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_output_trigger [2023-11-12 02:15:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_output_trigger [2023-11-12 02:15:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_input_trigger [2023-11-12 02:15:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_input_trigger [2023-11-12 02:15:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 02:15:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 02:15:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2023-11-12 02:15:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2023-11-12 02:15:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2023-11-12 02:15:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2023-11-12 02:15:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2023-11-12 02:15:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2023-11-12 02:15:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2023-11-12 02:15:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2023-11-12 02:15:27,463 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:27,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:27,796 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:15:30,230 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:30,254 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:30,254 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:15:30,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:30 BoogieIcfgContainer [2023-11-12 02:15:30,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:30,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:30,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:30,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:30,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:24" (1/3) ... [2023-11-12 02:15:30,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b19ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:30, skipping insertion in model container [2023-11-12 02:15:30,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:26" (2/3) ... [2023-11-12 02:15:30,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b19ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:30, skipping insertion in model container [2023-11-12 02:15:30,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:30" (3/3) ... [2023-11-12 02:15:30,272 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 [2023-11-12 02:15:30,295 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:30,295 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-12 02:15:30,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:30,390 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4551f599, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:30,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-12 02:15:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 846 states, 572 states have (on average 1.4108391608391608) internal successors, (807), 639 states have internal predecessors, (807), 179 states have call successors, (179), 50 states have call predecessors, (179), 49 states have return successors, (167), 164 states have call predecessors, (167), 167 states have call successors, (167) [2023-11-12 02:15:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-12 02:15:30,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:30,415 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] [2023-11-12 02:15:30,415 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)] === [2023-11-12 02:15:30,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:30,422 INFO L85 PathProgramCache]: Analyzing trace with hash 964897436, now seen corresponding path program 1 times [2023-11-12 02:15:30,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:30,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243594514] [2023-11-12 02:15:30,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:30,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:15:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:15:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:15:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,309 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:15:31,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:31,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243594514] [2023-11-12 02:15:31,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243594514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:31,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:31,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:31,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405250131] [2023-11-12 02:15:31,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:31,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:31,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:31,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:31,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:31,362 INFO L87 Difference]: Start difference. First operand has 846 states, 572 states have (on average 1.4108391608391608) internal successors, (807), 639 states have internal predecessors, (807), 179 states have call successors, (179), 50 states have call predecessors, (179), 49 states have return successors, (167), 164 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:33,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:33,933 INFO L93 Difference]: Finished difference Result 2650 states and 3885 transitions. [2023-11-12 02:15:33,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:33,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 49 [2023-11-12 02:15:33,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:33,986 INFO L225 Difference]: With dead ends: 2650 [2023-11-12 02:15:33,987 INFO L226 Difference]: Without dead ends: 1764 [2023-11-12 02:15:34,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:34,014 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 1431 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:34,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 2584 Invalid, 1035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [464 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 02:15:34,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2023-11-12 02:15:34,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1544. [2023-11-12 02:15:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1089 states have (on average 1.3746556473829201) internal successors, (1497), 1149 states have internal predecessors, (1497), 319 states have call successors, (319), 96 states have call predecessors, (319), 96 states have return successors, (317), 310 states have call predecessors, (317), 317 states have call successors, (317) [2023-11-12 02:15:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2133 transitions. [2023-11-12 02:15:34,265 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2133 transitions. Word has length 49 [2023-11-12 02:15:34,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:34,266 INFO L495 AbstractCegarLoop]: Abstraction has 1544 states and 2133 transitions. [2023-11-12 02:15:34,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:34,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2133 transitions. [2023-11-12 02:15:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 02:15:34,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:34,276 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:34,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:15:34,276 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)] === [2023-11-12 02:15:34,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:34,278 INFO L85 PathProgramCache]: Analyzing trace with hash -649511141, now seen corresponding path program 1 times [2023-11-12 02:15:34,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:34,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882671098] [2023-11-12 02:15:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:34,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:15:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:15:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:15:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:15:34,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882671098] [2023-11-12 02:15:34,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882671098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:34,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:34,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824136827] [2023-11-12 02:15:34,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:34,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:34,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:34,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:34,565 INFO L87 Difference]: Start difference. First operand 1544 states and 2133 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:36,725 INFO L93 Difference]: Finished difference Result 4824 states and 6751 transitions. [2023-11-12 02:15:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:36,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2023-11-12 02:15:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:36,757 INFO L225 Difference]: With dead ends: 4824 [2023-11-12 02:15:36,757 INFO L226 Difference]: Without dead ends: 3295 [2023-11-12 02:15:36,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:36,772 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 1358 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:36,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 2549 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 02:15:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2023-11-12 02:15:36,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2905. [2023-11-12 02:15:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2905 states, 2068 states have (on average 1.372340425531915) internal successors, (2838), 2148 states have internal predecessors, (2838), 607 states have call successors, (607), 190 states have call predecessors, (607), 190 states have return successors, (603), 588 states have call predecessors, (603), 603 states have call successors, (603) [2023-11-12 02:15:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 4048 transitions. [2023-11-12 02:15:36,983 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 4048 transitions. Word has length 52 [2023-11-12 02:15:36,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:36,984 INFO L495 AbstractCegarLoop]: Abstraction has 2905 states and 4048 transitions. [2023-11-12 02:15:36,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:36,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 4048 transitions. [2023-11-12 02:15:36,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 02:15:36,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:36,987 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] [2023-11-12 02:15:36,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:15:36,988 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)] === [2023-11-12 02:15:36,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:36,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1459674595, now seen corresponding path program 1 times [2023-11-12 02:15:36,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:36,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957746911] [2023-11-12 02:15:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:36,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:15:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:15:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:15:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:15:37,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:37,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957746911] [2023-11-12 02:15:37,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957746911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:37,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:37,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:37,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934944174] [2023-11-12 02:15:37,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:37,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:37,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:37,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:37,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:37,250 INFO L87 Difference]: Start difference. First operand 2905 states and 4048 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:39,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:39,313 INFO L93 Difference]: Finished difference Result 9221 states and 12996 transitions. [2023-11-12 02:15:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:39,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2023-11-12 02:15:39,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:39,406 INFO L225 Difference]: With dead ends: 9221 [2023-11-12 02:15:39,406 INFO L226 Difference]: Without dead ends: 6331 [2023-11-12 02:15:39,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:39,421 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 1359 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:39,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1443 Valid, 2705 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 02:15:39,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2023-11-12 02:15:39,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 5595. [2023-11-12 02:15:39,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 4008 states have (on average 1.370259481037924) internal successors, (5492), 4130 states have internal predecessors, (5492), 1167 states have call successors, (1167), 380 states have call predecessors, (1167), 380 states have return successors, (1159), 1128 states have call predecessors, (1159), 1159 states have call successors, (1159) [2023-11-12 02:15:39,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 7818 transitions. [2023-11-12 02:15:39,802 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 7818 transitions. Word has length 55 [2023-11-12 02:15:39,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:39,805 INFO L495 AbstractCegarLoop]: Abstraction has 5595 states and 7818 transitions. [2023-11-12 02:15:39,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:39,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 7818 transitions. [2023-11-12 02:15:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:15:39,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:39,809 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:39,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:15:39,813 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)] === [2023-11-12 02:15:39,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:39,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1817474157, now seen corresponding path program 1 times [2023-11-12 02:15:39,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:39,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613549309] [2023-11-12 02:15:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:15:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:15:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:15:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,204 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:15:40,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:40,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613549309] [2023-11-12 02:15:40,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613549309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:40,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:40,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:40,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386351555] [2023-11-12 02:15:40,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:40,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:40,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:40,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:40,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:40,208 INFO L87 Difference]: Start difference. First operand 5595 states and 7818 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:42,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:42,504 INFO L93 Difference]: Finished difference Result 17851 states and 25222 transitions. [2023-11-12 02:15:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:42,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2023-11-12 02:15:42,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:42,615 INFO L225 Difference]: With dead ends: 17851 [2023-11-12 02:15:42,615 INFO L226 Difference]: Without dead ends: 12151 [2023-11-12 02:15:42,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:42,645 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 1351 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:42,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 2794 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-12 02:15:42,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12151 states. [2023-11-12 02:15:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12151 to 10751. [2023-11-12 02:15:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 7745 states have (on average 1.3737895416397676) internal successors, (10640), 7927 states have internal predecessors, (10640), 2225 states have call successors, (2225), 746 states have call predecessors, (2225), 741 states have return successors, (2220), 2165 states have call predecessors, (2220), 2220 states have call successors, (2220) [2023-11-12 02:15:43,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 15085 transitions. [2023-11-12 02:15:43,452 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 15085 transitions. Word has length 58 [2023-11-12 02:15:43,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:43,453 INFO L495 AbstractCegarLoop]: Abstraction has 10751 states and 15085 transitions. [2023-11-12 02:15:43,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:15:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 15085 transitions. [2023-11-12 02:15:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-12 02:15:43,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:43,458 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:43,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:15:43,459 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)] === [2023-11-12 02:15:43,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:43,459 INFO L85 PathProgramCache]: Analyzing trace with hash 2037294346, now seen corresponding path program 1 times [2023-11-12 02:15:43,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:43,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312945854] [2023-11-12 02:15:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:43,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:15:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:15:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:15:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:15:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:15:43,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:43,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312945854] [2023-11-12 02:15:43,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312945854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:43,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:43,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:43,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262426558] [2023-11-12 02:15:43,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:43,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:43,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:43,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:43,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:43,809 INFO L87 Difference]: Start difference. First operand 10751 states and 15085 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:15:46,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:46,717 INFO L93 Difference]: Finished difference Result 34145 states and 48451 transitions. [2023-11-12 02:15:46,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:46,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2023-11-12 02:15:46,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:46,854 INFO L225 Difference]: With dead ends: 34145 [2023-11-12 02:15:46,854 INFO L226 Difference]: Without dead ends: 23409 [2023-11-12 02:15:46,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:46,903 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 1257 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 3575 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:46,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 3575 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 02:15:46,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23409 states. [2023-11-12 02:15:48,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23409 to 20871. [2023-11-12 02:15:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20871 states, 15016 states have (on average 1.3704714970697922) internal successors, (20579), 15341 states have internal predecessors, (20579), 4362 states have call successors, (4362), 1462 states have call predecessors, (4362), 1453 states have return successors, (4353), 4243 states have call predecessors, (4353), 4353 states have call successors, (4353) [2023-11-12 02:15:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20871 states to 20871 states and 29294 transitions. [2023-11-12 02:15:48,372 INFO L78 Accepts]: Start accepts. Automaton has 20871 states and 29294 transitions. Word has length 65 [2023-11-12 02:15:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:48,373 INFO L495 AbstractCegarLoop]: Abstraction has 20871 states and 29294 transitions. [2023-11-12 02:15:48,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:15:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 20871 states and 29294 transitions. [2023-11-12 02:15:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-12 02:15:48,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:48,375 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:48,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:15:48,376 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)] === [2023-11-12 02:15:48,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:48,377 INFO L85 PathProgramCache]: Analyzing trace with hash -125926512, now seen corresponding path program 1 times [2023-11-12 02:15:48,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:48,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962245110] [2023-11-12 02:15:48,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:48,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:15:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:15:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:15:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:15:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-12 02:15:48,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:48,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962245110] [2023-11-12 02:15:48,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962245110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:48,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:48,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:48,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676794537] [2023-11-12 02:15:48,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:48,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:48,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:48,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:48,643 INFO L87 Difference]: Start difference. First operand 20871 states and 29294 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 02:15:50,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:50,711 INFO L93 Difference]: Finished difference Result 44341 states and 62873 transitions. [2023-11-12 02:15:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:50,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2023-11-12 02:15:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:50,832 INFO L225 Difference]: With dead ends: 44341 [2023-11-12 02:15:50,833 INFO L226 Difference]: Without dead ends: 23485 [2023-11-12 02:15:51,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:51,009 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 192 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:51,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2570 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-12 02:15:51,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23485 states. [2023-11-12 02:15:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23485 to 20990. [2023-11-12 02:15:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20990 states, 15118 states have (on average 1.369096441328218) internal successors, (20698), 15443 states have internal predecessors, (20698), 4379 states have call successors, (4379), 1462 states have call predecessors, (4379), 1453 states have return successors, (4370), 4260 states have call predecessors, (4370), 4370 states have call successors, (4370) [2023-11-12 02:15:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20990 states to 20990 states and 29447 transitions. [2023-11-12 02:15:52,518 INFO L78 Accepts]: Start accepts. Automaton has 20990 states and 29447 transitions. Word has length 72 [2023-11-12 02:15:52,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:52,520 INFO L495 AbstractCegarLoop]: Abstraction has 20990 states and 29447 transitions. [2023-11-12 02:15:52,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 02:15:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 20990 states and 29447 transitions. [2023-11-12 02:15:52,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 02:15:52,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:52,523 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:52,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:15:52,523 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-12 02:15:52,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:52,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1604749102, now seen corresponding path program 1 times [2023-11-12 02:15:52,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:52,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740983138] [2023-11-12 02:15:52,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:52,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:15:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:15:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:15:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:15:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:15:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:15:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:52,812 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:15:52,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:52,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740983138] [2023-11-12 02:15:52,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740983138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:52,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:52,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:52,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936592444] [2023-11-12 02:15:52,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:52,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:15:52,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:52,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:15:52,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:52,815 INFO L87 Difference]: Start difference. First operand 20990 states and 29447 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:15:57,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:57,286 INFO L93 Difference]: Finished difference Result 72214 states and 103392 transitions. [2023-11-12 02:15:57,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:15:57,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-11-12 02:15:57,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:57,551 INFO L225 Difference]: With dead ends: 72214 [2023-11-12 02:15:57,552 INFO L226 Difference]: Without dead ends: 51239 [2023-11-12 02:15:57,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:57,621 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 2061 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 990 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:57,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2168 Valid, 3472 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [990 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-12 02:15:57,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51239 states. [2023-11-12 02:16:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51239 to 39138. [2023-11-12 02:16:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39138 states, 28395 states have (on average 1.372107765451664) internal successors, (38961), 28976 states have internal predecessors, (38961), 7929 states have call successors, (7929), 2791 states have call predecessors, (7929), 2774 states have return successors, (7912), 7702 states have call predecessors, (7912), 7912 states have call successors, (7912) [2023-11-12 02:16:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39138 states to 39138 states and 54802 transitions. [2023-11-12 02:16:00,295 INFO L78 Accepts]: Start accepts. Automaton has 39138 states and 54802 transitions. Word has length 81 [2023-11-12 02:16:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:00,297 INFO L495 AbstractCegarLoop]: Abstraction has 39138 states and 54802 transitions. [2023-11-12 02:16:00,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 02:16:00,298 INFO L276 IsEmpty]: Start isEmpty. Operand 39138 states and 54802 transitions. [2023-11-12 02:16:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 02:16:00,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:00,303 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:00,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:16:00,304 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting snd_mts64_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_mts64_rawmidi_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_openErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_mts64_rawmidi_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-12 02:16:00,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:00,304 INFO L85 PathProgramCache]: Analyzing trace with hash 938860592, now seen corresponding path program 1 times [2023-11-12 02:16:00,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:00,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451251261] [2023-11-12 02:16:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:00,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:16:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:16:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:16:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:16:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:16:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:16:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:16:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-12 02:16:00,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:00,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451251261] [2023-11-12 02:16:00,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451251261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:16:00,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461843463] [2023-11-12 02:16:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:00,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:16:00,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:00,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:16:00,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1940cb86-dd46-4454-aba1-442f4e39b739/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:16:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:01,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:16:01,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-12 02:16:01,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:01,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461843463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:01,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:16:01,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-12 02:16:01,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663331210] [2023-11-12 02:16:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:01,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:01,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:01,567 INFO L87 Difference]: Start difference. First operand 39138 states and 54802 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 02:16:03,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:03,198 INFO L93 Difference]: Finished difference Result 39138 states and 54802 transitions. [2023-11-12 02:16:03,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:16:03,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2023-11-12 02:16:03,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:03,375 INFO L225 Difference]: With dead ends: 39138 [2023-11-12 02:16:03,376 INFO L226 Difference]: Without dead ends: 39137 [2023-11-12 02:16:03,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:03,391 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 17 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:03,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:16:03,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39137 states.