./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.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_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:05:32,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:05:32,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:05:32,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:05:32,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:05:32,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:05:32,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:05:32,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:05:32,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:05:32,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:05:32,845 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:05:32,846 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:05:32,847 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:05:32,848 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:05:32,848 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:05:32,849 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:05:32,849 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:05:32,850 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:05:32,851 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:05:32,851 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:05:32,852 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:05:32,853 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:05:32,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:05:32,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:05:32,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:05:32,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:05:32,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:05:32,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:05:32,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:05:32,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:05:32,858 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:05:32,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:05:32,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:05:32,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:05:32,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:05:32,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:05:32,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:05:32,861 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:05:32,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:05:32,861 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:05:32,862 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:05:32,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:05:32,862 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2023-11-19 05:05:33,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:05:33,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:05:33,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:05:33,277 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:05:33,278 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:05:33,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-19 05:05:36,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:05:37,528 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:05:37,529 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-19 05:05:37,577 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/data/07d11a566/78f39551f9984ebeb16652910b7ccb9c/FLAGdd8a25556 [2023-11-19 05:05:37,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/data/07d11a566/78f39551f9984ebeb16652910b7ccb9c [2023-11-19 05:05:37,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:05:37,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:05:37,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:05:37,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:05:37,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:05:37,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:05:37" (1/1) ... [2023-11-19 05:05:37,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781be766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:37, skipping insertion in model container [2023-11-19 05:05:37,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:05:37" (1/1) ... [2023-11-19 05:05:37,814 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:05:39,313 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_def6148c-c641-442f-afaa-d8b83b7a9868/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-19 05:05:39,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:05:39,527 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:05:39,930 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_def6148c-c641-442f-afaa-d8b83b7a9868/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-19 05:05:39,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:05:40,262 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:05:40,269 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:05:40,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40 WrapperNode [2023-11-19 05:05:40,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:05:40,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:05:40,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:05:40,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:05:40,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:40,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:40,743 INFO L138 Inliner]: procedures = 184, calls = 2071, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5448 [2023-11-19 05:05:40,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:05:40,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:05:40,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:05:40,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:05:40,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:40,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:40,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:40,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:40,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:41,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:41,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:41,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:41,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:05:41,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:05:41,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:05:41,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:05:41,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (1/1) ... [2023-11-19 05:05:41,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:05:41,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:05:41,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:05:41,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def6148c-c641-442f-afaa-d8b83b7a9868/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:05:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2023-11-19 05:05:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2023-11-19 05:05:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 05:05:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 05:05:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2023-11-19 05:05:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2023-11-19 05:05:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-19 05:05:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-19 05:05:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2023-11-19 05:05:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2023-11-19 05:05:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-19 05:05:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-19 05:05:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2023-11-19 05:05:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2023-11-19 05:05:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:05:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2023-11-19 05:05:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2023-11-19 05:05:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2023-11-19 05:05:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2023-11-19 05:05:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-19 05:05:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-19 05:05:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-19 05:05:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-19 05:05:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2023-11-19 05:05:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2023-11-19 05:05:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2023-11-19 05:05:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2023-11-19 05:05:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:05:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:05:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2023-11-19 05:05:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2023-11-19 05:05:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2023-11-19 05:05:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2023-11-19 05:05:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-19 05:05:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-19 05:05:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2023-11-19 05:05:41,244 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2023-11-19 05:05:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2023-11-19 05:05:41,244 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2023-11-19 05:05:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2023-11-19 05:05:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2023-11-19 05:05:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:05:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:05:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:05:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:05:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:05:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 05:05:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 05:05:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 05:05:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 05:05:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2023-11-19 05:05:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2023-11-19 05:05:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2023-11-19 05:05:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2023-11-19 05:05:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:05:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:05:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2023-11-19 05:05:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2023-11-19 05:05:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2023-11-19 05:05:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2023-11-19 05:05:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2023-11-19 05:05:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2023-11-19 05:05:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2023-11-19 05:05:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2023-11-19 05:05:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:05:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 05:05:41,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 05:05:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2023-11-19 05:05:41,251 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2023-11-19 05:05:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:05:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:05:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2023-11-19 05:05:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2023-11-19 05:05:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2023-11-19 05:05:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2023-11-19 05:05:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:05:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:05:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-19 05:05:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-19 05:05:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2023-11-19 05:05:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2023-11-19 05:05:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-11-19 05:05:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-11-19 05:05:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-19 05:05:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-19 05:05:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-19 05:05:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-19 05:05:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2023-11-19 05:05:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2023-11-19 05:05:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:05:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-19 05:05:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-19 05:05:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:05:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2023-11-19 05:05:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2023-11-19 05:05:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-19 05:05:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-19 05:05:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:05:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-19 05:05:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-19 05:05:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:05:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:05:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2023-11-19 05:05:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2023-11-19 05:05:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2023-11-19 05:05:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2023-11-19 05:05:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 05:05:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 05:05:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2023-11-19 05:05:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2023-11-19 05:05:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 05:05:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 05:05:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2023-11-19 05:05:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2023-11-19 05:05:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:05:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-19 05:05:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-19 05:05:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:05:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:05:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 05:05:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 05:05:42,212 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:05:42,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:05:49,202 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:05:52,744 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:05:52,745 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:05:52,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:05:52 BoogieIcfgContainer [2023-11-19 05:05:52,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:05:52,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:05:52,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:05:52,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:05:52,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:05:37" (1/3) ... [2023-11-19 05:05:52,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f98859a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:05:52, skipping insertion in model container [2023-11-19 05:05:52,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:05:40" (2/3) ... [2023-11-19 05:05:52,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f98859a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:05:52, skipping insertion in model container [2023-11-19 05:05:52,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:05:52" (3/3) ... [2023-11-19 05:05:52,785 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-19 05:05:52,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:05:52,813 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:05:52,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:05:52,955 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7255ba5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:05:52,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:05:52,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 1049 states, 708 states have (on average 1.5254237288135593) internal successors, (1080), 722 states have internal predecessors, (1080), 285 states have call successors, (285), 54 states have call predecessors, (285), 54 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) [2023-11-19 05:05:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 05:05:53,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:05:53,014 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] [2023-11-19 05:05:53,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:05:53,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:05:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash -888359490, now seen corresponding path program 1 times [2023-11-19 05:05:53,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:05:53,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692486329] [2023-11-19 05:05:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:05:53,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:05:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:05:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:05:54,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:05:54,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692486329] [2023-11-19 05:05:54,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692486329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:05:54,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:05:54,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:05:54,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722264974] [2023-11-19 05:05:54,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:05:54,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:05:54,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:05:54,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:05:54,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:05:54,407 INFO L87 Difference]: Start difference. First operand has 1049 states, 708 states have (on average 1.5254237288135593) internal successors, (1080), 722 states have internal predecessors, (1080), 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 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:05:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:05:55,569 INFO L93 Difference]: Finished difference Result 3138 states and 5242 transitions. [2023-11-19 05:05:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:05:55,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 32 [2023-11-19 05:05:55,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:05:55,624 INFO L225 Difference]: With dead ends: 3138 [2023-11-19 05:05:55,624 INFO L226 Difference]: Without dead ends: 2086 [2023-11-19 05:05:55,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:05:55,655 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 1623 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:05:55,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 2948 Invalid, 331 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:05:55,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2023-11-19 05:05:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 2069. [2023-11-19 05:05:55,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 1402 states have (on average 1.522111269614836) internal successors, (2134), 1418 states have internal predecessors, (2134), 560 states have call successors, (560), 107 states have call predecessors, (560), 106 states have return successors, (551), 547 states have call predecessors, (551), 551 states have call successors, (551) [2023-11-19 05:05:55,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3245 transitions. [2023-11-19 05:05:55,925 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3245 transitions. Word has length 32 [2023-11-19 05:05:55,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:05:55,926 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 3245 transitions. [2023-11-19 05:05:55,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:05:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3245 transitions. [2023-11-19 05:05:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 05:05:55,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:05:55,932 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] [2023-11-19 05:05:55,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:05:55,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:05:55,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:05:55,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1068545029, now seen corresponding path program 1 times [2023-11-19 05:05:55,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:05:55,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750966114] [2023-11-19 05:05:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:05:55,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:05:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:05:56,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:05:56,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:05:56,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750966114] [2023-11-19 05:05:56,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750966114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:05:56,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:05:56,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:05:56,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986063652] [2023-11-19 05:05:56,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:05:56,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:05:56,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:05:56,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:05:56,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:05:56,569 INFO L87 Difference]: Start difference. First operand 2069 states and 3245 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:05:57,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:05:57,726 INFO L93 Difference]: Finished difference Result 6188 states and 9703 transitions. [2023-11-19 05:05:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:05:57,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-19 05:05:57,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:05:57,777 INFO L225 Difference]: With dead ends: 6188 [2023-11-19 05:05:57,777 INFO L226 Difference]: Without dead ends: 4120 [2023-11-19 05:05:57,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:05:57,796 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 1616 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:05:57,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 3044 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:05:57,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2023-11-19 05:05:58,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 4103. [2023-11-19 05:05:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 2783 states have (on average 1.5206611570247934) internal successors, (4232), 2807 states have internal predecessors, (4232), 1107 states have call successors, (1107), 213 states have call predecessors, (1107), 212 states have return successors, (1098), 1090 states have call predecessors, (1098), 1098 states have call successors, (1098) [2023-11-19 05:05:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 6437 transitions. [2023-11-19 05:05:58,143 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 6437 transitions. Word has length 31 [2023-11-19 05:05:58,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:05:58,143 INFO L495 AbstractCegarLoop]: Abstraction has 4103 states and 6437 transitions. [2023-11-19 05:05:58,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:05:58,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 6437 transitions. [2023-11-19 05:05:58,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 05:05:58,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:05:58,148 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] [2023-11-19 05:05:58,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:05:58,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:05:58,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:05:58,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1061223041, now seen corresponding path program 1 times [2023-11-19 05:05:58,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:05:58,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891707104] [2023-11-19 05:05:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:05:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:05:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:05:58,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:05:58,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:05:58,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891707104] [2023-11-19 05:05:58,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891707104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:05:58,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:05:58,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:05:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058129294] [2023-11-19 05:05:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:05:58,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:05:58,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:05:58,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:05:58,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:05:58,662 INFO L87 Difference]: Start difference. First operand 4103 states and 6437 transitions. Second operand has 3 states, 3 states have (on average 8.0) 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) [2023-11-19 05:05:59,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:05:59,884 INFO L93 Difference]: Finished difference Result 12274 states and 19251 transitions. [2023-11-19 05:05:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:05:59,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) 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 [2023-11-19 05:05:59,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:05:59,965 INFO L225 Difference]: With dead ends: 12274 [2023-11-19 05:05:59,966 INFO L226 Difference]: Without dead ends: 8172 [2023-11-19 05:05:59,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:05:59,998 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1613 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:05:59,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1613 Valid, 3058 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:06:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2023-11-19 05:06:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 8155. [2023-11-19 05:06:00,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8155 states, 5533 states have (on average 1.5192481474787638) internal successors, (8406), 5573 states have internal predecessors, (8406), 2197 states have call successors, (2197), 425 states have call predecessors, (2197), 424 states have return successors, (2188), 2172 states have call predecessors, (2188), 2188 states have call successors, (2188) [2023-11-19 05:06:00,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8155 states to 8155 states and 12791 transitions. [2023-11-19 05:06:00,570 INFO L78 Accepts]: Start accepts. Automaton has 8155 states and 12791 transitions. Word has length 34 [2023-11-19 05:06:00,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:06:00,570 INFO L495 AbstractCegarLoop]: Abstraction has 8155 states and 12791 transitions. [2023-11-19 05:06:00,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) 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) [2023-11-19 05:06:00,571 INFO L276 IsEmpty]: Start isEmpty. Operand 8155 states and 12791 transitions. [2023-11-19 05:06:00,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 05:06:00,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:00,573 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] [2023-11-19 05:06:00,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:06:00,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:00,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:00,574 INFO L85 PathProgramCache]: Analyzing trace with hash -392985955, now seen corresponding path program 1 times [2023-11-19 05:06:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:00,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068075676] [2023-11-19 05:06:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:00,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:06:01,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:06:01,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068075676] [2023-11-19 05:06:01,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068075676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:01,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:06:01,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:06:01,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304785688] [2023-11-19 05:06:01,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:01,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:06:01,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:06:01,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:06:01,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:06:01,145 INFO L87 Difference]: Start difference. First operand 8155 states and 12791 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:06:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:06:02,941 INFO L93 Difference]: Finished difference Result 24398 states and 38257 transitions. [2023-11-19 05:06:02,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:06:02,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 30 [2023-11-19 05:06:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:06:03,120 INFO L225 Difference]: With dead ends: 24398 [2023-11-19 05:06:03,121 INFO L226 Difference]: Without dead ends: 16244 [2023-11-19 05:06:03,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:06:03,198 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 1617 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:06:03,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 3135 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:06:03,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16244 states. [2023-11-19 05:06:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16244 to 16227. [2023-11-19 05:06:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16227 states, 11009 states have (on average 1.517849032609683) internal successors, (16710), 11081 states have internal predecessors, (16710), 4369 states have call successors, (4369), 849 states have call predecessors, (4369), 848 states have return successors, (4360), 4328 states have call predecessors, (4360), 4360 states have call successors, (4360) [2023-11-19 05:06:04,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16227 states to 16227 states and 25439 transitions. [2023-11-19 05:06:04,814 INFO L78 Accepts]: Start accepts. Automaton has 16227 states and 25439 transitions. Word has length 30 [2023-11-19 05:06:04,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:06:04,815 INFO L495 AbstractCegarLoop]: Abstraction has 16227 states and 25439 transitions. [2023-11-19 05:06:04,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:06:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 16227 states and 25439 transitions. [2023-11-19 05:06:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 05:06:04,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:04,820 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] [2023-11-19 05:06:04,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:06:04,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:04,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1812160290, now seen corresponding path program 1 times [2023-11-19 05:06:04,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:04,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970449196] [2023-11-19 05:06:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:05,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:06:05,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:06:05,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970449196] [2023-11-19 05:06:05,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970449196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:05,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:06:05,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:06:05,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046086234] [2023-11-19 05:06:05,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:05,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:06:05,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:06:05,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:06:05,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:06:05,366 INFO L87 Difference]: Start difference. First operand 16227 states and 25439 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:06:07,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:06:07,683 INFO L93 Difference]: Finished difference Result 48614 states and 76201 transitions. [2023-11-19 05:06:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:06:07,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-11-19 05:06:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:06:08,027 INFO L225 Difference]: With dead ends: 48614 [2023-11-19 05:06:08,027 INFO L226 Difference]: Without dead ends: 32388 [2023-11-19 05:06:08,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:06:08,113 INFO L413 NwaCegarLoop]: 1691 mSDtfsCounter, 1614 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:06:08,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 3163 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:06:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32388 states. [2023-11-19 05:06:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32388 to 32371. [2023-11-19 05:06:10,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32371 states, 21961 states have (on average 1.5167797459132097) internal successors, (33310), 22097 states have internal predecessors, (33310), 8713 states have call successors, (8713), 1697 states have call predecessors, (8713), 1696 states have return successors, (8704), 8640 states have call predecessors, (8704), 8704 states have call successors, (8704) [2023-11-19 05:06:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32371 states to 32371 states and 50727 transitions. [2023-11-19 05:06:10,856 INFO L78 Accepts]: Start accepts. Automaton has 32371 states and 50727 transitions. Word has length 37 [2023-11-19 05:06:10,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:06:10,857 INFO L495 AbstractCegarLoop]: Abstraction has 32371 states and 50727 transitions. [2023-11-19 05:06:10,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:06:10,857 INFO L276 IsEmpty]: Start isEmpty. Operand 32371 states and 50727 transitions. [2023-11-19 05:06:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 05:06:10,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:10,859 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] [2023-11-19 05:06:10,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:06:10,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:10,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:10,860 INFO L85 PathProgramCache]: Analyzing trace with hash -136024495, now seen corresponding path program 1 times [2023-11-19 05:06:10,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:10,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950205499] [2023-11-19 05:06:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:10,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:06:11,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:06:11,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950205499] [2023-11-19 05:06:11,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950205499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:11,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:06:11,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:06:11,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582959036] [2023-11-19 05:06:11,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:11,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:06:11,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:06:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:06:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:06:11,309 INFO L87 Difference]: Start difference. First operand 32371 states and 50727 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:06:15,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:06:15,342 INFO L93 Difference]: Finished difference Result 96854 states and 151729 transitions. [2023-11-19 05:06:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:06:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (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 39 [2023-11-19 05:06:15,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:06:15,838 INFO L225 Difference]: With dead ends: 96854 [2023-11-19 05:06:15,838 INFO L226 Difference]: Without dead ends: 64484 [2023-11-19 05:06:16,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:06:16,205 INFO L413 NwaCegarLoop]: 1701 mSDtfsCounter, 1608 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:06:16,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 3169 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:06:16,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64484 states.