./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.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_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/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_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/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_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/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 a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:31,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:32,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:45:32,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:32,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:32,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:32,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:32,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:32,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:32,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:32,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:32,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:32,077 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:32,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:32,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:45:32,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:32,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:32,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:45:32,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:32,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:45:32,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:32,083 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:32,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:32,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:32,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:32,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:32,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:32,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:32,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:45:32,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:32,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:32,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:32,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:45:32,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:32,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:32,089 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:32,090 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_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2023-11-19 07:45:32,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:32,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:32,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:32,470 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:32,471 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:32,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-19 07:45:35,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:36,144 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:36,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-19 07:45:36,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/data/dfaa1debf/cb0908d61098462baad8d932bc6725da/FLAGdc0c790c2 [2023-11-19 07:45:36,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/data/dfaa1debf/cb0908d61098462baad8d932bc6725da [2023-11-19 07:45:36,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:36,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:36,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:36,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:36,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:36,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:36" (1/1) ... [2023-11-19 07:45:36,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cad6ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:36, skipping insertion in model container [2023-11-19 07:45:36,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:36" (1/1) ... [2023-11-19 07:45:36,357 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:37,890 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_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-19 07:45:38,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:38,110 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:38,376 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_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-19 07:45:38,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:38,632 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:38,641 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:38,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38 WrapperNode [2023-11-19 07:45:38,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:38,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:38,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:38,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:38,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:38,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,059 INFO L138 Inliner]: procedures = 184, calls = 2071, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5448 [2023-11-19 07:45:39,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:39,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:39,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:39,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:39,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:39,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:39,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:39,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:39,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (1/1) ... [2023-11-19 07:45:39,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:39,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:39,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:39,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ae222a6-da2b-4a1f-b4ff-29f5d2891ebc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2023-11-19 07:45:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2023-11-19 07:45:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 07:45:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 07:45:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2023-11-19 07:45:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2023-11-19 07:45:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-19 07:45:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-19 07:45:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2023-11-19 07:45:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2023-11-19 07:45:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-19 07:45:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-19 07:45:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2023-11-19 07:45:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2023-11-19 07:45:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:45:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2023-11-19 07:45:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2023-11-19 07:45:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2023-11-19 07:45:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2023-11-19 07:45:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-19 07:45:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-19 07:45:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-19 07:45:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-19 07:45:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2023-11-19 07:45:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2023-11-19 07:45:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2023-11-19 07:45:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2023-11-19 07:45:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:45:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:45:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2023-11-19 07:45:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2023-11-19 07:45:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2023-11-19 07:45:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2023-11-19 07:45:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-19 07:45:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-19 07:45:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2023-11-19 07:45:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2023-11-19 07:45:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2023-11-19 07:45:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2023-11-19 07:45:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2023-11-19 07:45:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2023-11-19 07:45:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:45:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:45:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:45:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:45:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:45:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 07:45:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 07:45:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 07:45:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 07:45:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2023-11-19 07:45:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2023-11-19 07:45:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2023-11-19 07:45:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2023-11-19 07:45:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:45:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:45:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2023-11-19 07:45:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2023-11-19 07:45:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2023-11-19 07:45:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2023-11-19 07:45:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2023-11-19 07:45:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2023-11-19 07:45:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2023-11-19 07:45:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2023-11-19 07:45:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:45:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:45:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:45:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2023-11-19 07:45:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2023-11-19 07:45:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:45:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2023-11-19 07:45:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2023-11-19 07:45:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2023-11-19 07:45:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2023-11-19 07:45:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:45:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:45:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-19 07:45:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-19 07:45:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2023-11-19 07:45:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2023-11-19 07:45:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-11-19 07:45:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-11-19 07:45:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-19 07:45:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-19 07:45:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-19 07:45:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-19 07:45:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2023-11-19 07:45:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2023-11-19 07:45:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:45:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-19 07:45:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-19 07:45:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:45:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2023-11-19 07:45:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2023-11-19 07:45:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-19 07:45:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-19 07:45:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:45:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-19 07:45:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-19 07:45:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:45:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:45:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2023-11-19 07:45:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2023-11-19 07:45:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2023-11-19 07:45:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2023-11-19 07:45:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 07:45:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 07:45:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2023-11-19 07:45:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2023-11-19 07:45:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 07:45:39,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 07:45:39,471 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2023-11-19 07:45:39,471 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2023-11-19 07:45:39,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:45:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-19 07:45:39,472 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-19 07:45:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:39,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:45:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:45:40,188 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:40,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:45:46,269 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:45:46,294 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:45:46,295 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:45:46,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:46 BoogieIcfgContainer [2023-11-19 07:45:46,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:45:46,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:45:46,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:45:46,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:45:46,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:36" (1/3) ... [2023-11-19 07:45:46,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d798edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:46, skipping insertion in model container [2023-11-19 07:45:46,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:38" (2/3) ... [2023-11-19 07:45:46,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d798edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:46, skipping insertion in model container [2023-11-19 07:45:46,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:46" (3/3) ... [2023-11-19 07:45:46,322 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-19 07:45:46,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:45:46,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:45:46,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:45:46,454 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;@6fd01c14, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:45:46,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:45:46,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 1369 states, 1028 states have (on average 1.4873540856031129) internal successors, (1529), 1042 states have internal predecessors, (1529), 285 states have call successors, (285), 54 states have call predecessors, (285), 54 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) [2023-11-19 07:45:46,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:45:46,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:46,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:46,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:46,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:46,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1498318954, now seen corresponding path program 1 times [2023-11-19 07:45:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:46,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674377551] [2023-11-19 07:45:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:47,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:45:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:47,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:47,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:45:47,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:47,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674377551] [2023-11-19 07:45:47,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674377551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:47,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:47,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:47,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831769600] [2023-11-19 07:45:47,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:47,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:47,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:47,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:47,690 INFO L87 Difference]: Start difference. First operand has 1369 states, 1028 states have (on average 1.4873540856031129) internal successors, (1529), 1042 states have internal predecessors, (1529), 285 states have call successors, (285), 54 states have call predecessors, (285), 54 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:45:50,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:50,740 INFO L93 Difference]: Finished difference Result 4235 states and 6950 transitions. [2023-11-19 07:45:50,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:50,743 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), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-19 07:45:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:50,782 INFO L225 Difference]: With dead ends: 4235 [2023-11-19 07:45:50,782 INFO L226 Difference]: Without dead ends: 2861 [2023-11-19 07:45:50,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:50,813 INFO L413 NwaCegarLoop]: 2063 mSDtfsCounter, 2351 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:50,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2525 Valid, 5417 Invalid, 1425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [658 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 07:45:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2023-11-19 07:45:51,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2694. [2023-11-19 07:45:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2028 states have (on average 1.4861932938856015) internal successors, (3014), 2044 states have internal predecessors, (3014), 559 states have call successors, (559), 107 states have call predecessors, (559), 106 states have return successors, (550), 546 states have call predecessors, (550), 550 states have call successors, (550) [2023-11-19 07:45:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4123 transitions. [2023-11-19 07:45:51,131 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4123 transitions. Word has length 35 [2023-11-19 07:45:51,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:51,131 INFO L495 AbstractCegarLoop]: Abstraction has 2694 states and 4123 transitions. [2023-11-19 07:45:51,132 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), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:45:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4123 transitions. [2023-11-19 07:45:51,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 07:45:51,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:51,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:51,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:45:51,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:51,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:51,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1338577943, now seen corresponding path program 1 times [2023-11-19 07:45:51,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:51,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867815215] [2023-11-19 07:45:51,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:51,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:45:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:51,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:45:51,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:51,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867815215] [2023-11-19 07:45:51,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867815215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:51,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:51,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:51,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430100686] [2023-11-19 07:45:51,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:51,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:51,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:51,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:51,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:51,847 INFO L87 Difference]: Start difference. First operand 2694 states and 4123 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:45:54,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:54,438 INFO L93 Difference]: Finished difference Result 8306 states and 12899 transitions. [2023-11-19 07:45:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:54,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-19 07:45:54,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:54,491 INFO L225 Difference]: With dead ends: 8306 [2023-11-19 07:45:54,491 INFO L226 Difference]: Without dead ends: 5615 [2023-11-19 07:45:54,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:54,515 INFO L413 NwaCegarLoop]: 2150 mSDtfsCounter, 2269 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:54,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 5513 Invalid, 1392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [614 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 07:45:54,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2023-11-19 07:45:54,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 5300. [2023-11-19 07:45:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 3996 states have (on average 1.486986986986987) internal successors, (5942), 4020 states have internal predecessors, (5942), 1091 states have call successors, (1091), 213 states have call predecessors, (1091), 212 states have return successors, (1082), 1074 states have call predecessors, (1082), 1082 states have call successors, (1082) [2023-11-19 07:45:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 8115 transitions. [2023-11-19 07:45:54,930 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 8115 transitions. Word has length 38 [2023-11-19 07:45:54,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:54,930 INFO L495 AbstractCegarLoop]: Abstraction has 5300 states and 8115 transitions. [2023-11-19 07:45:54,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:45:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 8115 transitions. [2023-11-19 07:45:54,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:45:54,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:54,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:54,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:45:54,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:54,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:54,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1108347533, now seen corresponding path program 1 times [2023-11-19 07:45:54,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:54,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979905257] [2023-11-19 07:45:54,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:54,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:55,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:45:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:55,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:55,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:45:55,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:55,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979905257] [2023-11-19 07:45:55,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979905257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:55,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:55,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:55,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689445186] [2023-11-19 07:45:55,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:55,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:55,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:55,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:55,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:55,504 INFO L87 Difference]: Start difference. First operand 5300 states and 8115 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:45:58,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:58,273 INFO L93 Difference]: Finished difference Result 16446 states and 25551 transitions. [2023-11-19 07:45:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:58,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-19 07:45:58,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:58,374 INFO L225 Difference]: With dead ends: 16446 [2023-11-19 07:45:58,374 INFO L226 Difference]: Without dead ends: 11149 [2023-11-19 07:45:58,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:58,413 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 2272 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:58,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 5633 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 07:45:58,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2023-11-19 07:45:59,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 10538. [2023-11-19 07:45:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10538 states, 7948 states have (on average 1.486160040261701) internal successors, (11812), 7988 states have internal predecessors, (11812), 2165 states have call successors, (2165), 425 states have call predecessors, (2165), 424 states have return successors, (2156), 2140 states have call predecessors, (2156), 2156 states have call successors, (2156) [2023-11-19 07:45:59,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10538 states to 10538 states and 16133 transitions. [2023-11-19 07:45:59,125 INFO L78 Accepts]: Start accepts. Automaton has 10538 states and 16133 transitions. Word has length 36 [2023-11-19 07:45:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:59,127 INFO L495 AbstractCegarLoop]: Abstraction has 10538 states and 16133 transitions. [2023-11-19 07:45:59,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:45:59,128 INFO L276 IsEmpty]: Start isEmpty. Operand 10538 states and 16133 transitions. [2023-11-19 07:45:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:45:59,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:59,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:59,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:45:59,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:59,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:59,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1105367059, now seen corresponding path program 1 times [2023-11-19 07:45:59,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:59,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649366307] [2023-11-19 07:45:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:59,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:59,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:45:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:59,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:59,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:45:59,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:59,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649366307] [2023-11-19 07:45:59,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649366307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:59,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:59,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:59,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349746779] [2023-11-19 07:45:59,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:59,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:59,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:59,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:59,585 INFO L87 Difference]: Start difference. First operand 10538 states and 16133 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:46:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:02,816 INFO L93 Difference]: Finished difference Result 32744 states and 50873 transitions. [2023-11-19 07:46:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:02,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-19 07:46:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:02,973 INFO L225 Difference]: With dead ends: 32744 [2023-11-19 07:46:02,973 INFO L226 Difference]: Without dead ends: 22209 [2023-11-19 07:46:03,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:03,046 INFO L413 NwaCegarLoop]: 2192 mSDtfsCounter, 2326 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:03,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 5621 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:46:03,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22209 states. [2023-11-19 07:46:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22209 to 21006. [2023-11-19 07:46:04,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21006 states, 15844 states have (on average 1.4854834637717749) internal successors, (23536), 15916 states have internal predecessors, (23536), 4313 states have call successors, (4313), 849 states have call predecessors, (4313), 848 states have return successors, (4304), 4272 states have call predecessors, (4304), 4304 states have call successors, (4304) [2023-11-19 07:46:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21006 states to 21006 states and 32153 transitions. [2023-11-19 07:46:04,464 INFO L78 Accepts]: Start accepts. Automaton has 21006 states and 32153 transitions. Word has length 36 [2023-11-19 07:46:04,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:04,464 INFO L495 AbstractCegarLoop]: Abstraction has 21006 states and 32153 transitions. [2023-11-19 07:46:04,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:46:04,465 INFO L276 IsEmpty]: Start isEmpty. Operand 21006 states and 32153 transitions. [2023-11-19 07:46:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:46:04,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:04,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:04,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:46:04,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:04,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:04,469 INFO L85 PathProgramCache]: Analyzing trace with hash 269111987, now seen corresponding path program 1 times [2023-11-19 07:46:04,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:04,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2598200] [2023-11-19 07:46:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:04,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:46:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:05,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:46:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:05,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:46:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:05,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:05,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:05,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2598200] [2023-11-19 07:46:05,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2598200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:05,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:05,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:05,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307573795] [2023-11-19 07:46:05,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:05,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:05,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:05,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:05,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:05,060 INFO L87 Difference]: Start difference. First operand 21006 states and 32153 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:46:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:08,933 INFO L93 Difference]: Finished difference Result 65252 states and 101381 transitions. [2023-11-19 07:46:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:08,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2023-11-19 07:46:08,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:09,166 INFO L225 Difference]: With dead ends: 65252 [2023-11-19 07:46:09,166 INFO L226 Difference]: Without dead ends: 44249 [2023-11-19 07:46:09,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:09,360 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 2316 mSDsluCounter, 3450 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:09,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 5651 Invalid, 1404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [619 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:46:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44249 states. [2023-11-19 07:46:11,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44249 to 41862. [2023-11-19 07:46:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41862 states, 31564 states have (on average 1.4852363452033963) internal successors, (46880), 31700 states have internal predecessors, (46880), 8601 states have call successors, (8601), 1697 states have call predecessors, (8601), 1696 states have return successors, (8592), 8528 states have call predecessors, (8592), 8592 states have call successors, (8592) [2023-11-19 07:46:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41862 states to 41862 states and 64073 transitions. [2023-11-19 07:46:11,875 INFO L78 Accepts]: Start accepts. Automaton has 41862 states and 64073 transitions. Word has length 41 [2023-11-19 07:46:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:11,875 INFO L495 AbstractCegarLoop]: Abstraction has 41862 states and 64073 transitions. [2023-11-19 07:46:11,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:46:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 41862 states and 64073 transitions. [2023-11-19 07:46:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 07:46:11,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:11,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:11,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:46:11,878 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:11,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1155077072, now seen corresponding path program 1 times [2023-11-19 07:46:11,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:11,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163206325] [2023-11-19 07:46:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:11,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:12,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:46:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:46:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:12,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:46:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:12,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163206325] [2023-11-19 07:46:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163206325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:12,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:12,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:12,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805150756] [2023-11-19 07:46:12,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:12,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:12,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:12,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:12,477 INFO L87 Difference]: Start difference. First operand 41862 states and 64073 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)