./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 e7bb482b 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_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/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_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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-e7bb482 [2023-11-06 22:36:08,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:36:08,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:36:08,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:36:08,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:36:08,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:36:08,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:36:08,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:36:08,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:36:08,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:36:08,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:36:08,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:36:08,691 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:36:08,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:36:08,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:36:08,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:36:08,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:36:08,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:36:08,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:36:08,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:36:08,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:36:08,697 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:36:08,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:36:08,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:36:08,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:36:08,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:08,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:36:08,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:36:08,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:36:08,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:36:08,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:36:08,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:36:08,704 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:36:08,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:36:08,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:36:08,705 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:36:08,706 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_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2023-11-06 22:36:09,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:36:09,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:36:09,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:36:09,062 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:36:09,064 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:36:09,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-06 22:36:12,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:36:12,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:36:12,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-06 22:36:12,913 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/data/c32cb4d0b/cbe77daa73ba438aa55b216300a84269/FLAG7aaecc332 [2023-11-06 22:36:12,934 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/data/c32cb4d0b/cbe77daa73ba438aa55b216300a84269 [2023-11-06 22:36:12,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:36:12,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:36:12,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:12,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:36:12,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:36:12,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:12" (1/1) ... [2023-11-06 22:36:12,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11959365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:12, skipping insertion in model container [2023-11-06 22:36:12,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:12" (1/1) ... [2023-11-06 22:36:13,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:36:14,556 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_627106b1-7a5a-490e-9e97-f3895562e126/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-06 22:36:14,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:14,777 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:36:15,016 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_627106b1-7a5a-490e-9e97-f3895562e126/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-06 22:36:15,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:15,223 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:36:15,230 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:36:15,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15 WrapperNode [2023-11-06 22:36:15,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:15,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:15,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:36:15,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:36:15,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,534 INFO L138 Inliner]: procedures = 184, calls = 2071, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5448 [2023-11-06 22:36:15,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:15,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:36:15,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:36:15,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:36:15,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:36:15,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:36:15,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:36:15,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:36:15,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (1/1) ... [2023-11-06 22:36:15,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:15,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:15,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:15,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_627106b1-7a5a-490e-9e97-f3895562e126/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:36:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2023-11-06 22:36:15,927 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2023-11-06 22:36:15,927 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-06 22:36:15,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-06 22:36:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2023-11-06 22:36:15,928 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2023-11-06 22:36:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-06 22:36:15,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-06 22:36:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2023-11-06 22:36:15,929 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2023-11-06 22:36:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-06 22:36:15,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-06 22:36:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2023-11-06 22:36:15,929 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2023-11-06 22:36:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:36:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2023-11-06 22:36:15,931 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2023-11-06 22:36:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2023-11-06 22:36:15,932 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2023-11-06 22:36:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-06 22:36:15,932 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-06 22:36:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-06 22:36:15,932 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-06 22:36:15,933 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2023-11-06 22:36:15,933 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2023-11-06 22:36:15,933 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2023-11-06 22:36:15,933 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2023-11-06 22:36:15,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:36:15,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:36:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2023-11-06 22:36:15,935 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2023-11-06 22:36:15,935 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2023-11-06 22:36:15,936 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2023-11-06 22:36:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-06 22:36:15,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-06 22:36:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2023-11-06 22:36:15,937 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2023-11-06 22:36:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2023-11-06 22:36:15,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2023-11-06 22:36:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2023-11-06 22:36:15,938 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2023-11-06 22:36:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:36:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 22:36:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 22:36:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 22:36:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 22:36:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-06 22:36:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-06 22:36:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-06 22:36:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-06 22:36:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2023-11-06 22:36:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2023-11-06 22:36:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2023-11-06 22:36:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2023-11-06 22:36:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:36:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:36:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2023-11-06 22:36:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2023-11-06 22:36:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2023-11-06 22:36:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2023-11-06 22:36:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2023-11-06 22:36:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2023-11-06 22:36:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2023-11-06 22:36:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2023-11-06 22:36:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:36:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-06 22:36:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-06 22:36:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2023-11-06 22:36:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2023-11-06 22:36:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:36:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:36:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2023-11-06 22:36:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2023-11-06 22:36:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2023-11-06 22:36:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2023-11-06 22:36:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:36:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-06 22:36:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-06 22:36:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-06 22:36:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2023-11-06 22:36:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2023-11-06 22:36:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-11-06 22:36:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-11-06 22:36:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-06 22:36:15,947 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-06 22:36:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-06 22:36:15,948 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-06 22:36:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2023-11-06 22:36:15,948 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2023-11-06 22:36:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:36:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-06 22:36:15,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-06 22:36:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:36:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2023-11-06 22:36:15,950 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2023-11-06 22:36:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-06 22:36:15,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-06 22:36:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:36:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-06 22:36:15,950 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-06 22:36:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-06 22:36:15,951 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-06 22:36:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2023-11-06 22:36:15,951 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2023-11-06 22:36:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2023-11-06 22:36:15,951 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2023-11-06 22:36:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-06 22:36:15,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-06 22:36:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2023-11-06 22:36:15,952 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2023-11-06 22:36:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-06 22:36:15,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-06 22:36:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2023-11-06 22:36:15,953 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2023-11-06 22:36:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:36:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-06 22:36:15,953 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-06 22:36:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:36:15,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:36:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-06 22:36:15,954 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-06 22:36:16,788 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:36:16,793 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:36:22,825 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:36:22,842 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:36:22,843 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:36:22,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:22 BoogieIcfgContainer [2023-11-06 22:36:22,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:36:22,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:36:22,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:36:22,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:36:22,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:36:12" (1/3) ... [2023-11-06 22:36:22,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5450642c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:22, skipping insertion in model container [2023-11-06 22:36:22,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:15" (2/3) ... [2023-11-06 22:36:22,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5450642c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:22, skipping insertion in model container [2023-11-06 22:36:22,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:22" (3/3) ... [2023-11-06 22:36:22,856 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-06 22:36:22,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:36:22,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:36:22,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:36:22,967 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=LoopsAndPotentialCycles, 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;@6bed401d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:36:22,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:36:22,978 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) [2023-11-06 22:36:23,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:36:23,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:23,003 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] [2023-11-06 22:36:23,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:23,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1498318954, now seen corresponding path program 1 times [2023-11-06 22:36:23,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:23,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254926760] [2023-11-06 22:36:23,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:23,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:36:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:24,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:24,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:24,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:24,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254926760] [2023-11-06 22:36:24,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254926760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:24,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:24,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:24,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375453868] [2023-11-06 22:36:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:24,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:24,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:24,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:24,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:24,175 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) [2023-11-06 22:36:27,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:27,110 INFO L93 Difference]: Finished difference Result 4235 states and 6950 transitions. [2023-11-06 22:36:27,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:27,118 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 [2023-11-06 22:36:27,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:27,154 INFO L225 Difference]: With dead ends: 4235 [2023-11-06 22:36:27,154 INFO L226 Difference]: Without dead ends: 2861 [2023-11-06 22:36:27,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:27,178 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 2279 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 5576 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:27,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 5576 Invalid, 1383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [605 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-06 22:36:27,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2023-11-06 22:36:27,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2694. [2023-11-06 22:36:27,427 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) [2023-11-06 22:36:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4123 transitions. [2023-11-06 22:36:27,461 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4123 transitions. Word has length 35 [2023-11-06 22:36:27,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:36:27,462 INFO L495 AbstractCegarLoop]: Abstraction has 2694 states and 4123 transitions. [2023-11-06 22:36:27,462 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) [2023-11-06 22:36:27,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4123 transitions. [2023-11-06 22:36:27,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:36:27,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:27,470 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] [2023-11-06 22:36:27,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:36:27,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:27,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash 648484044, now seen corresponding path program 1 times [2023-11-06 22:36:27,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:27,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441136430] [2023-11-06 22:36:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:27,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:36:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:28,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:28,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:28,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:28,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441136430] [2023-11-06 22:36:28,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441136430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:28,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:28,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:28,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146667158] [2023-11-06 22:36:28,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:28,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:28,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:28,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:28,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:28,090 INFO L87 Difference]: Start difference. First operand 2694 states and 4123 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-11-06 22:36:30,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:30,761 INFO L93 Difference]: Finished difference Result 8352 states and 12973 transitions. [2023-11-06 22:36:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:30,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 34 [2023-11-06 22:36:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:30,814 INFO L225 Difference]: With dead ends: 8352 [2023-11-06 22:36:30,814 INFO L226 Difference]: Without dead ends: 5661 [2023-11-06 22:36:30,833 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 [2023-11-06 22:36:30,834 INFO L413 NwaCegarLoop]: 2240 mSDtfsCounter, 2310 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2480 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:30,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2480 Valid, 5757 Invalid, 1421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [596 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-06 22:36:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5661 states. [2023-11-06 22:36:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5661 to 5346. [2023-11-06 22:36:31,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5346 states, 4028 states have (on average 1.4856007944389276) internal successors, (5984), 4052 states have internal predecessors, (5984), 1105 states have call successors, (1105), 213 states have call predecessors, (1105), 212 states have return successors, (1096), 1088 states have call predecessors, (1096), 1096 states have call successors, (1096) [2023-11-06 22:36:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 8185 transitions. [2023-11-06 22:36:31,203 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 8185 transitions. Word has length 34 [2023-11-06 22:36:31,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:36:31,203 INFO L495 AbstractCegarLoop]: Abstraction has 5346 states and 8185 transitions. [2023-11-06 22:36:31,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-11-06 22:36:31,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 8185 transitions. [2023-11-06 22:36:31,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-06 22:36:31,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:31,206 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] [2023-11-06 22:36:31,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:36:31,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:31,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:31,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1155077072, now seen corresponding path program 1 times [2023-11-06 22:36:31,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:31,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758969114] [2023-11-06 22:36:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:31,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 22:36:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:31,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758969114] [2023-11-06 22:36:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758969114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:31,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:31,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:31,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198331868] [2023-11-06 22:36:31,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:31,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:31,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:31,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:31,783 INFO L87 Difference]: Start difference. First operand 5346 states and 8185 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) [2023-11-06 22:36:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:34,495 INFO L93 Difference]: Finished difference Result 16584 states and 25769 transitions. [2023-11-06 22:36:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:34,496 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 38 [2023-11-06 22:36:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:34,590 INFO L225 Difference]: With dead ends: 16584 [2023-11-06 22:36:34,591 INFO L226 Difference]: Without dead ends: 11241 [2023-11-06 22:36:34,622 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 [2023-11-06 22:36:34,623 INFO L413 NwaCegarLoop]: 2159 mSDtfsCounter, 2365 mSDsluCounter, 3515 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2547 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:34,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2547 Valid, 5674 Invalid, 1438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [625 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-06 22:36:34,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11241 states. [2023-11-06 22:36:35,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11241 to 10630. [2023-11-06 22:36:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10630 states, 8012 states have (on average 1.4847728407388916) internal successors, (11896), 8052 states have internal predecessors, (11896), 2193 states have call successors, (2193), 425 states have call predecessors, (2193), 424 states have return successors, (2184), 2168 states have call predecessors, (2184), 2184 states have call successors, (2184) [2023-11-06 22:36:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10630 states to 10630 states and 16273 transitions. [2023-11-06 22:36:35,371 INFO L78 Accepts]: Start accepts. Automaton has 10630 states and 16273 transitions. Word has length 38 [2023-11-06 22:36:35,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:36:35,372 INFO L495 AbstractCegarLoop]: Abstraction has 10630 states and 16273 transitions. [2023-11-06 22:36:35,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-06 22:36:35,372 INFO L276 IsEmpty]: Start isEmpty. Operand 10630 states and 16273 transitions. [2023-11-06 22:36:35,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-06 22:36:35,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:35,374 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] [2023-11-06 22:36:35,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:36:35,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:35,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:35,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1108347533, now seen corresponding path program 1 times [2023-11-06 22:36:35,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:35,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940044836] [2023-11-06 22:36:35,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:35,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:36:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:35,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:35,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:35,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940044836] [2023-11-06 22:36:35,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940044836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:35,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:35,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:35,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763225602] [2023-11-06 22:36:35,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:35,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:35,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:35,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:35,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:35,851 INFO L87 Difference]: Start difference. First operand 10630 states and 16273 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) [2023-11-06 22:36:39,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:39,266 INFO L93 Difference]: Finished difference Result 32988 states and 51253 transitions. [2023-11-06 22:36:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:39,267 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 [2023-11-06 22:36:39,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:39,405 INFO L225 Difference]: With dead ends: 32988 [2023-11-06 22:36:39,405 INFO L226 Difference]: Without dead ends: 22361 [2023-11-06 22:36:39,457 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 [2023-11-06 22:36:39,458 INFO L413 NwaCegarLoop]: 2369 mSDtfsCounter, 2276 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 5925 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:39,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 5925 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 22:36:39,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22361 states. [2023-11-06 22:36:40,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22361 to 21158. [2023-11-06 22:36:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21158 states, 15948 states have (on average 1.4838224228743415) internal successors, (23664), 16020 states have internal predecessors, (23664), 4361 states have call successors, (4361), 849 states have call predecessors, (4361), 848 states have return successors, (4352), 4320 states have call predecessors, (4352), 4352 states have call successors, (4352) [2023-11-06 22:36:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21158 states to 21158 states and 32377 transitions. [2023-11-06 22:36:40,932 INFO L78 Accepts]: Start accepts. Automaton has 21158 states and 32377 transitions. Word has length 36 [2023-11-06 22:36:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:36:40,932 INFO L495 AbstractCegarLoop]: Abstraction has 21158 states and 32377 transitions. [2023-11-06 22:36:40,933 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) [2023-11-06 22:36:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 21158 states and 32377 transitions. [2023-11-06 22:36:40,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 22:36:40,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:40,936 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, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:36:40,937 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:40,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash -72383582, now seen corresponding path program 1 times [2023-11-06 22:36:40,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:40,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893602871] [2023-11-06 22:36:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:41,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:36:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:41,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:41,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:41,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893602871] [2023-11-06 22:36:41,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893602871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:41,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:41,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821524667] [2023-11-06 22:36:41,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:41,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:41,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:41,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:41,400 INFO L87 Difference]: Start difference. First operand 21158 states and 32377 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-06 22:36:45,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:45,454 INFO L93 Difference]: Finished difference Result 65740 states and 102117 transitions. [2023-11-06 22:36:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:45,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 47 [2023-11-06 22:36:45,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:45,866 INFO L225 Difference]: With dead ends: 65740 [2023-11-06 22:36:45,866 INFO L226 Difference]: Without dead ends: 44585 [2023-11-06 22:36:45,979 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 [2023-11-06 22:36:45,982 INFO L413 NwaCegarLoop]: 2446 mSDtfsCounter, 2271 mSDsluCounter, 3607 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 6053 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:45,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 6053 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 22:36:46,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44585 states. [2023-11-06 22:36:48,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44585 to 42198. [2023-11-06 22:36:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42198 states, 31804 states have (on average 1.4830838888190165) internal successors, (47168), 31940 states have internal predecessors, (47168), 8697 states have call successors, (8697), 1697 states have call predecessors, (8697), 1696 states have return successors, (8688), 8624 states have call predecessors, (8688), 8688 states have call successors, (8688) [2023-11-06 22:36:49,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42198 states to 42198 states and 64553 transitions. [2023-11-06 22:36:49,435 INFO L78 Accepts]: Start accepts. Automaton has 42198 states and 64553 transitions. Word has length 47 [2023-11-06 22:36:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:36:49,435 INFO L495 AbstractCegarLoop]: Abstraction has 42198 states and 64553 transitions. [2023-11-06 22:36:49,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-06 22:36:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 42198 states and 64553 transitions. [2023-11-06 22:36:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-06 22:36:49,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:36:49,438 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, 1] [2023-11-06 22:36:49,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:36:49,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:36:49,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:49,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2084116765, now seen corresponding path program 1 times [2023-11-06 22:36:49,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:49,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130882761] [2023-11-06 22:36:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:49,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:36:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:49,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:49,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:36:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:49,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:49,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130882761] [2023-11-06 22:36:49,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130882761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:49,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:49,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:36:49,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948096763] [2023-11-06 22:36:49,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:49,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:49,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:49,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:49,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:49,843 INFO L87 Difference]: Start difference. First operand 42198 states and 64553 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, (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) [2023-11-06 22:36:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:56,175 INFO L93 Difference]: Finished difference Result 131004 states and 203413 transitions. [2023-11-06 22:36:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:56,176 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, (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 42 [2023-11-06 22:36:56,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:36:56,642 INFO L225 Difference]: With dead ends: 131004 [2023-11-06 22:36:56,643 INFO L226 Difference]: Without dead ends: 88809 [2023-11-06 22:36:56,808 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 [2023-11-06 22:36:56,812 INFO L413 NwaCegarLoop]: 2427 mSDtfsCounter, 2287 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 6074 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:36:56,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 6074 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-06 22:36:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88809 states. [2023-11-06 22:37:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88809 to 84054. [2023-11-06 22:37:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84054 states, 63340 states have (on average 1.4820334701610356) internal successors, (93872), 63604 states have internal predecessors, (93872), 17321 states have call successors, (17321), 3393 states have call predecessors, (17321), 3392 states have return successors, (17312), 17184 states have call predecessors, (17312), 17312 states have call successors, (17312) [2023-11-06 22:37:02,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84054 states to 84054 states and 128505 transitions. [2023-11-06 22:37:02,445 INFO L78 Accepts]: Start accepts. Automaton has 84054 states and 128505 transitions. Word has length 42 [2023-11-06 22:37:02,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:37:02,447 INFO L495 AbstractCegarLoop]: Abstraction has 84054 states and 128505 transitions. [2023-11-06 22:37:02,447 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, (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) [2023-11-06 22:37:02,447 INFO L276 IsEmpty]: Start isEmpty. Operand 84054 states and 128505 transitions. [2023-11-06 22:37:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 22:37:02,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:37:02,450 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, 1, 1, 1, 1] [2023-11-06 22:37:02,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:37:02,451 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:37:02,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 869906237, now seen corresponding path program 1 times [2023-11-06 22:37:02,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:02,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32787124] [2023-11-06 22:37:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:02,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-06 22:37:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:37:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:02,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:37:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:02,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:02,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32787124] [2023-11-06 22:37:02,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32787124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:02,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:02,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:37:02,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277014131] [2023-11-06 22:37:02,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:02,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:37:02,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:37:02,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:37:02,851 INFO L87 Difference]: Start difference. First operand 84054 states and 128505 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-06 22:37:12,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:37:12,497 INFO L93 Difference]: Finished difference Result 261244 states and 405477 transitions. [2023-11-06 22:37:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:37:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 45 [2023-11-06 22:37:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:37:13,459 INFO L225 Difference]: With dead ends: 261244 [2023-11-06 22:37:13,459 INFO L226 Difference]: Without dead ends: 177193 [2023-11-06 22:37:13,739 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 [2023-11-06 22:37:13,739 INFO L413 NwaCegarLoop]: 2464 mSDtfsCounter, 2243 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 6001 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:37:13,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 6001 Invalid, 1406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [547 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 22:37:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177193 states. [2023-11-06 22:37:22,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177193 to 167702. [2023-11-06 22:37:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167702 states, 126348 states have (on average 1.4812422832177794) internal successors, (187152), 126868 states have internal predecessors, (187152), 34569 states have call successors, (34569), 6785 states have call predecessors, (34569), 6784 states have return successors, (34560), 34304 states have call predecessors, (34560), 34560 states have call successors, (34560) [2023-11-06 22:37:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167702 states to 167702 states and 256281 transitions. [2023-11-06 22:37:23,896 INFO L78 Accepts]: Start accepts. Automaton has 167702 states and 256281 transitions. Word has length 45 [2023-11-06 22:37:23,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:37:23,896 INFO L495 AbstractCegarLoop]: Abstraction has 167702 states and 256281 transitions. [2023-11-06 22:37:23,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-06 22:37:23,897 INFO L276 IsEmpty]: Start isEmpty. Operand 167702 states and 256281 transitions. [2023-11-06 22:37:23,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:37:23,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:37:23,898 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] [2023-11-06 22:37:23,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:37:23,899 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:37:23,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash 107523722, now seen corresponding path program 1 times [2023-11-06 22:37:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:23,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245004619] [2023-11-06 22:37:23,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:24,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:37:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:37:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:24,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:37:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:24,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:24,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245004619] [2023-11-06 22:37:24,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245004619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:24,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:24,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:37:24,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087292885] [2023-11-06 22:37:24,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:24,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:37:24,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:24,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:37:24,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:37:24,307 INFO L87 Difference]: Start difference. First operand 167702 states and 256281 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, (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)