./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-aloop.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-aloop.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b0b41862c2f2ed85815e97691c99c06d3eb1c9f09c717c7d2a79de23098870a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:32,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:32,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:42:32,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:32,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:32,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:32,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:32,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:32,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:32,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:32,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:32,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:32,826 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:32,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:32,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:32,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:32,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:32,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:32,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:32,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:32,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:32,833 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:32,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:32,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:32,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:32,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:32,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:32,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:32,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:32,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:32,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:32,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:32,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:32,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:32,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:32,842 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:32,842 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_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b0b41862c2f2ed85815e97691c99c06d3eb1c9f09c717c7d2a79de23098870a [2023-11-19 07:42:33,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:33,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:33,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:33,224 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:33,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:33,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-aloop.ko-entry_point.cil.out.i [2023-11-19 07:42:36,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:37,054 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:37,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-aloop.ko-entry_point.cil.out.i [2023-11-19 07:42:37,112 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/data/4190c389f/792a1888ec3d4ac195f4021f9b2ccb17/FLAG56a241fa7 [2023-11-19 07:42:37,136 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/data/4190c389f/792a1888ec3d4ac195f4021f9b2ccb17 [2023-11-19 07:42:37,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:37,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:37,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:37,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:37,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:37,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef8ffae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37, skipping insertion in model container [2023-11-19 07:42:37,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:37,940 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2023-11-19 07:42:37,941 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2023-11-19 07:42:38,251 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-aloop.ko-entry_point.cil.out.i[111472,111485] [2023-11-19 07:42:39,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:39,092 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:39,197 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2023-11-19 07:42:39,197 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2023-11-19 07:42:39,211 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-aloop.ko-entry_point.cil.out.i[111472,111485] [2023-11-19 07:42:39,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:39,598 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:39,606 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:39,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39 WrapperNode [2023-11-19 07:42:39,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:39,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:39,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:39,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:39,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:39,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:39,963 INFO L138 Inliner]: procedures = 205, calls = 1673, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3765 [2023-11-19 07:42:39,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:39,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:39,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:39,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:39,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:39,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:40,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:40,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:40,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:40,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (1/1) ... [2023-11-19 07:42:40,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:40,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:40,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:40,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17468162-67be-4804-9368-6852126f0135/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure get_setup [2023-11-19 07:42:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure get_setup [2023-11-19 07:42:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:42:40,375 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:42:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:42:40,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:42:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_format_set_silence [2023-11-19 07:42:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_format_set_silence [2023-11-19 07:42:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 07:42:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 07:42:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure byte_pos [2023-11-19 07:42:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure byte_pos [2023-11-19 07:42:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:42:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_trigger [2023-11-19 07:42:40,379 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_trigger [2023-11-19 07:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_pcm_new [2023-11-19 07:42:40,379 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_pcm_new [2023-11-19 07:42:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:42:40,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:42:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:42:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:42:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_open [2023-11-19 07:42:40,382 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_open [2023-11-19 07:42:40,382 INFO L130 BoogieDeclarations]: Found specification of procedure params_change [2023-11-19 07:42:40,382 INFO L138 BoogieDeclarations]: Found implementation of procedure params_change [2023-11-19 07:42:40,383 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:42:40,383 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:42:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_set_ops [2023-11-19 07:42:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_set_ops [2023-11-19 07:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_hw_rule_add [2023-11-19 07:42:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_hw_rule_add [2023-11-19 07:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2023-11-19 07:42:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2023-11-19 07:42:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-19 07:42:40,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-19 07:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_timer_stop [2023-11-19 07:42:40,386 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_timer_stop [2023-11-19 07:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_hw_free [2023-11-19 07:42:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_hw_free [2023-11-19 07:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure get_cable_index [2023-11-19 07:42:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cable_index [2023-11-19 07:42:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_suspend_all [2023-11-19 07:42:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_suspend_all [2023-11-19 07:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 07:42:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 07:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-19 07:42:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-19 07:42:40,388 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:42:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_get_vmalloc_page [2023-11-19 07:42:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_get_vmalloc_page [2023-11-19 07:42:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:42:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:42:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_close [2023-11-19 07:42:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_close [2023-11-19 07:42:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:42:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:42:40,391 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 07:42:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 07:42:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_active_notify [2023-11-19 07:42:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_active_notify [2023-11-19 07:42:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:42:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:42:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:42:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 07:42:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 07:42:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_pointer [2023-11-19 07:42:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_pointer [2023-11-19 07:42:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:42:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_hw_params [2023-11-19 07:42:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_hw_params [2023-11-19 07:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure bytepos_finish [2023-11-19 07:42:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bytepos_finish [2023-11-19 07:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_timer_start [2023-11-19 07:42:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_timer_start [2023-11-19 07:42:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_prepare [2023-11-19 07:42:40,397 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_prepare [2023-11-19 07:42:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-19 07:42:40,397 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-19 07:42:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_proc_new [2023-11-19 07:42:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_proc_new [2023-11-19 07:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:42:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:42:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure bytepos_delta [2023-11-19 07:42:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure bytepos_delta [2023-11-19 07:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_suspend [2023-11-19 07:42:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_suspend [2023-11-19 07:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure frames_to_bytes [2023-11-19 07:42:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure frames_to_bytes [2023-11-19 07:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:42:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_notify [2023-11-19 07:42:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_notify [2023-11-19 07:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_resume [2023-11-19 07:42:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_resume [2023-11-19 07:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_pos_update [2023-11-19 07:42:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_pos_update [2023-11-19 07:42:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2023-11-19 07:42:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2023-11-19 07:42:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure snd_power_change_state [2023-11-19 07:42:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_power_change_state [2023-11-19 07:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2023-11-19 07:42:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2023-11-19 07:42:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 07:42:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 07:42:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure bytes_to_frames [2023-11-19 07:42:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure bytes_to_frames [2023-11-19 07:42:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_unregister_all [2023-11-19 07:42:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_unregister_all [2023-11-19 07:42:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 07:42:40,405 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 07:42:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure clear_capture_buf [2023-11-19 07:42:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_capture_buf [2023-11-19 07:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure params_change_substream [2023-11-19 07:42:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure params_change_substream [2023-11-19 07:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:42:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:42:41,081 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:41,085 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:41,533 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:43:06,591 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:06,611 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:06,612 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:43:06,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:06 BoogieIcfgContainer [2023-11-19 07:43:06,624 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:06,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:06,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:06,630 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:06,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:37" (1/3) ... [2023-11-19 07:43:06,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c72bba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:06, skipping insertion in model container [2023-11-19 07:43:06,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:39" (2/3) ... [2023-11-19 07:43:06,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c72bba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:06, skipping insertion in model container [2023-11-19 07:43:06,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:06" (3/3) ... [2023-11-19 07:43:06,633 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-aloop.ko-entry_point.cil.out.i [2023-11-19 07:43:06,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:06,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:43:06,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:06,732 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;@44114d12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:06,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:43:06,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 917 states, 689 states have (on average 1.4310595065312046) internal successors, (986), 712 states have internal predecessors, (986), 170 states have call successors, (170), 57 states have call predecessors, (170), 56 states have return successors, (163), 156 states have call predecessors, (163), 163 states have call successors, (163) [2023-11-19 07:43:06,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:43:06,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:06,785 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:06,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:06,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:06,798 INFO L85 PathProgramCache]: Analyzing trace with hash 64906222, now seen corresponding path program 1 times [2023-11-19 07:43:06,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:06,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956152972] [2023-11-19 07:43:06,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:06,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:43:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:43:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:43:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:43:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:43:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:43:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:43:07,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:07,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956152972] [2023-11-19 07:43:07,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956152972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:07,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:07,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029178368] [2023-11-19 07:43:07,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:07,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:07,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:07,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:07,785 INFO L87 Difference]: Start difference. First operand has 917 states, 689 states have (on average 1.4310595065312046) internal successors, (986), 712 states have internal predecessors, (986), 170 states have call successors, (170), 57 states have call predecessors, (170), 56 states have return successors, (163), 156 states have call predecessors, (163), 163 states have call successors, (163) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:43:14,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:16,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:19,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:21,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:23,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:26,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:28,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:30,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:32,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []