./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--amc6821.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:32:30,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:32:30,664 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:32:30,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:32:30,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:32:30,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:32:30,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:32:30,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:32:30,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:32:30,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:32:30,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:32:30,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:32:30,713 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:32:30,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:32:30,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:32:30,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:32:30,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:32:30,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:32:30,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:32:30,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:32:30,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:32:30,728 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:32:30,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:32:30,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:32:30,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:32:30,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:32:30,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:32:30,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:32:30,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:32:30,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:32:30,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:32:30,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:32:30,735 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:32:30,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:32:30,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:32:30,736 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:32:30,736 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_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df [2023-11-12 02:32:31,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:32:31,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:32:31,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:32:31,171 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:32:31,173 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:32:31,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2023-11-12 02:32:34,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:32:35,043 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:32:35,044 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2023-11-12 02:32:35,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/data/33f9dd396/6cd3afa2d563406f8925ad718b425fd0/FLAGa3b0a4eff [2023-11-12 02:32:35,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/data/33f9dd396/6cd3afa2d563406f8925ad718b425fd0 [2023-11-12 02:32:35,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:32:35,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:32:35,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:32:35,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:32:35,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:32:35,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:32:35" (1/1) ... [2023-11-12 02:32:35,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c44ea8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:35, skipping insertion in model container [2023-11-12 02:32:35,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:32:35" (1/1) ... [2023-11-12 02:32:35,263 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:32:36,375 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_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2023-11-12 02:32:36,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:32:36,535 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:32:36,811 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_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2023-11-12 02:32:36,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:32:37,029 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:32:37,038 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:32:37,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37 WrapperNode [2023-11-12 02:32:37,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:32:37,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:32:37,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:32:37,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:32:37,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,371 INFO L138 Inliner]: procedures = 138, calls = 1489, calls flagged for inlining = 60, calls inlined = 52, statements flattened = 3966 [2023-11-12 02:32:37,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:32:37,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:32:37,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:32:37,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:32:37,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:32:37,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:32:37,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:32:37,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:32:37,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (1/1) ... [2023-11-12 02:32:37,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:32:37,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:32:37,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:32:37,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ce02d0-eef2-4e19-b9bc-83eae3e0631a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:32:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_pwm1_auto_point_pwm [2023-11-12 02:32:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pwm1_auto_point_pwm [2023-11-12 02:32:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 02:32:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 02:32:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:32:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure get_fan [2023-11-12 02:32:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fan [2023-11-12 02:32:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-12 02:32:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-12 02:32:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-12 02:32:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-12 02:32:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_detect [2023-11-12 02:32:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_detect [2023-11-12 02:32:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:32:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:32:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:32:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:32:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:32:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:32:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:32:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-12 02:32:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-12 02:32:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:32:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:32:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:32:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_amc6821_data [2023-11-12 02:32:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_amc6821_data [2023-11-12 02:32:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 02:32:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 02:32:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp_auto_point_temp [2023-11-12 02:32:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp_auto_point_temp [2023-11-12 02:32:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure set_slope_register [2023-11-12 02:32:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure set_slope_register [2023-11-12 02:32:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp_alarm [2023-11-12 02:32:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp_alarm [2023-11-12 02:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 02:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-12 02:32:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-12 02:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-12 02:32:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-12 02:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_update_device [2023-11-12 02:32:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_update_device [2023-11-12 02:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-12 02:32:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-12 02:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp [2023-11-12 02:32:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp [2023-11-12 02:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp [2023-11-12 02:32:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp [2023-11-12 02:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:32:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan [2023-11-12 02:32:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan [2023-11-12 02:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-12 02:32:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-12 02:32:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_amc6821_data [2023-11-12 02:32:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_amc6821_data [2023-11-12 02:32:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:32:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:32:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_auto_point_temp [2023-11-12 02:32:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_auto_point_temp [2023-11-12 02:32:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 02:32:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 02:32:38,612 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:32:38,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:32:43,815 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:32:43,831 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:32:43,832 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:32:43,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:32:43 BoogieIcfgContainer [2023-11-12 02:32:43,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:32:43,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:32:43,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:32:43,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:32:43,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:32:35" (1/3) ... [2023-11-12 02:32:43,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f757359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:32:43, skipping insertion in model container [2023-11-12 02:32:43,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:32:37" (2/3) ... [2023-11-12 02:32:43,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f757359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:32:43, skipping insertion in model container [2023-11-12 02:32:43,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:32:43" (3/3) ... [2023-11-12 02:32:43,845 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2023-11-12 02:32:43,866 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:32:43,866 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:32:43,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:32:43,948 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@276a22d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:32:43,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:32:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 982 states, 753 states have (on average 1.5073041168658698) internal successors, (1135), 760 states have internal predecessors, (1135), 199 states have call successors, (199), 28 states have call predecessors, (199), 28 states have return successors, (199), 199 states have call predecessors, (199), 199 states have call successors, (199) [2023-11-12 02:32:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:32:43,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:32:43,976 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] [2023-11-12 02:32:43,977 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:32:43,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:43,983 INFO L85 PathProgramCache]: Analyzing trace with hash -615416676, now seen corresponding path program 1 times [2023-11-12 02:32:43,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:43,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501314672] [2023-11-12 02:32:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:44,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:32:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:44,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:32:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:44,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:44,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501314672] [2023-11-12 02:32:44,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501314672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:44,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:44,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:44,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413158733] [2023-11-12 02:32:44,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:44,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:44,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:44,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:44,950 INFO L87 Difference]: Start difference. First operand has 982 states, 753 states have (on average 1.5073041168658698) internal successors, (1135), 760 states have internal predecessors, (1135), 199 states have call successors, (199), 28 states have call predecessors, (199), 28 states have return successors, (199), 199 states have call predecessors, (199), 199 states have call successors, (199) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:47,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:32:47,465 INFO L93 Difference]: Finished difference Result 3085 states and 5028 transitions. [2023-11-12 02:32:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:32:47,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2023-11-12 02:32:47,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:32:47,520 INFO L225 Difference]: With dead ends: 3085 [2023-11-12 02:32:47,520 INFO L226 Difference]: Without dead ends: 2098 [2023-11-12 02:32:47,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:47,545 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1657 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:32:47,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 4211 Invalid, 982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [426 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 02:32:47,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2023-11-12 02:32:47,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1927. [2023-11-12 02:32:47,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1927 states, 1481 states have (on average 1.49898717083052) internal successors, (2220), 1486 states have internal predecessors, (2220), 391 states have call successors, (391), 55 states have call predecessors, (391), 54 states have return successors, (385), 385 states have call predecessors, (385), 385 states have call successors, (385) [2023-11-12 02:32:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2996 transitions. [2023-11-12 02:32:47,821 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2996 transitions. Word has length 30 [2023-11-12 02:32:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:32:47,822 INFO L495 AbstractCegarLoop]: Abstraction has 1927 states and 2996 transitions. [2023-11-12 02:32:47,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2996 transitions. [2023-11-12 02:32:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:32:47,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:32:47,833 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] [2023-11-12 02:32:47,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:32:47,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:32:47,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:47,835 INFO L85 PathProgramCache]: Analyzing trace with hash 3033649, now seen corresponding path program 1 times [2023-11-12 02:32:47,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:47,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910462316] [2023-11-12 02:32:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:47,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:32:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:32:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:48,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:48,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910462316] [2023-11-12 02:32:48,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910462316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:48,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:48,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:48,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894168210] [2023-11-12 02:32:48,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:48,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:48,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:48,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:48,314 INFO L87 Difference]: Start difference. First operand 1927 states and 2996 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:32:50,399 INFO L93 Difference]: Finished difference Result 6075 states and 9538 transitions. [2023-11-12 02:32:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:32:50,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2023-11-12 02:32:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:32:50,437 INFO L225 Difference]: With dead ends: 6075 [2023-11-12 02:32:50,437 INFO L226 Difference]: Without dead ends: 4151 [2023-11-12 02:32:50,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:50,450 INFO L413 NwaCegarLoop]: 1655 mSDtfsCounter, 1656 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 4223 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:32:50,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 4223 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 02:32:50,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4151 states. [2023-11-12 02:32:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4151 to 3824. [2023-11-12 02:32:50,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3824 states, 2941 states have (on average 1.4988099285957157) internal successors, (4408), 2946 states have internal predecessors, (4408), 774 states have call successors, (774), 109 states have call predecessors, (774), 108 states have return successors, (768), 768 states have call predecessors, (768), 768 states have call successors, (768) [2023-11-12 02:32:50,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 5950 transitions. [2023-11-12 02:32:50,695 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 5950 transitions. Word has length 30 [2023-11-12 02:32:50,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:32:50,695 INFO L495 AbstractCegarLoop]: Abstraction has 3824 states and 5950 transitions. [2023-11-12 02:32:50,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:50,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 5950 transitions. [2023-11-12 02:32:50,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 02:32:50,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:32:50,698 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] [2023-11-12 02:32:50,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:32:50,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:32:50,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:50,699 INFO L85 PathProgramCache]: Analyzing trace with hash 458439215, now seen corresponding path program 1 times [2023-11-12 02:32:50,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90221311] [2023-11-12 02:32:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:32:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:32:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:51,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:51,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90221311] [2023-11-12 02:32:51,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90221311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:51,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:51,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:51,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936445459] [2023-11-12 02:32:51,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:51,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:51,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:51,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:51,118 INFO L87 Difference]: Start difference. First operand 3824 states and 5950 transitions. 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:32:53,455 INFO L93 Difference]: Finished difference Result 12066 states and 18956 transitions. [2023-11-12 02:32:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:32:53,456 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-12 02:32:53,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:32:53,530 INFO L225 Difference]: With dead ends: 12066 [2023-11-12 02:32:53,531 INFO L226 Difference]: Without dead ends: 8245 [2023-11-12 02:32:53,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:53,553 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 1653 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 4245 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:32:53,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 4245 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:32:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2023-11-12 02:32:54,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 7606. [2023-11-12 02:32:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7606 states, 5851 states have (on average 1.4982054349683815) internal successors, (8766), 5856 states have internal predecessors, (8766), 1538 states have call successors, (1538), 217 states have call predecessors, (1538), 216 states have return successors, (1532), 1532 states have call predecessors, (1532), 1532 states have call successors, (1532) [2023-11-12 02:32:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7606 states to 7606 states and 11836 transitions. [2023-11-12 02:32:54,128 INFO L78 Accepts]: Start accepts. Automaton has 7606 states and 11836 transitions. Word has length 33 [2023-11-12 02:32:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:32:54,129 INFO L495 AbstractCegarLoop]: Abstraction has 7606 states and 11836 transitions. [2023-11-12 02:32:54,129 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 7606 states and 11836 transitions. [2023-11-12 02:32:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 02:32:54,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:32:54,133 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] [2023-11-12 02:32:54,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:32:54,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:32:54,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:54,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1275046571, now seen corresponding path program 1 times [2023-11-12 02:32:54,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:54,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295936332] [2023-11-12 02:32:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:54,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-12 02:32:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:32:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:54,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:54,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295936332] [2023-11-12 02:32:54,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295936332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:54,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:54,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:54,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436121629] [2023-11-12 02:32:54,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:54,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:54,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:54,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:54,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:54,498 INFO L87 Difference]: Start difference. First operand 7606 states and 11836 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:57,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:32:57,117 INFO L93 Difference]: Finished difference Result 23980 states and 37670 transitions. [2023-11-12 02:32:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:32:57,117 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2023-11-12 02:32:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:32:57,271 INFO L225 Difference]: With dead ends: 23980 [2023-11-12 02:32:57,273 INFO L226 Difference]: Without dead ends: 16377 [2023-11-12 02:32:57,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:32:57,420 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1644 mSDsluCounter, 2515 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 4105 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:32:57,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 4105 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:32:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16377 states. [2023-11-12 02:32:58,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16377 to 15114. [2023-11-12 02:32:58,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15114 states, 11627 states have (on average 1.4970327685559475) internal successors, (17406), 11632 states have internal predecessors, (17406), 3054 states have call successors, (3054), 433 states have call predecessors, (3054), 432 states have return successors, (3048), 3048 states have call predecessors, (3048), 3048 states have call successors, (3048) [2023-11-12 02:32:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15114 states to 15114 states and 23508 transitions. [2023-11-12 02:32:58,472 INFO L78 Accepts]: Start accepts. Automaton has 15114 states and 23508 transitions. Word has length 36 [2023-11-12 02:32:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:32:58,473 INFO L495 AbstractCegarLoop]: Abstraction has 15114 states and 23508 transitions. [2023-11-12 02:32:58,475 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:32:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 15114 states and 23508 transitions. [2023-11-12 02:32:58,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:32:58,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:32:58,482 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] [2023-11-12 02:32:58,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:32:58,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:32:58,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:58,483 INFO L85 PathProgramCache]: Analyzing trace with hash 869642687, now seen corresponding path program 1 times [2023-11-12 02:32:58,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:58,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151738159] [2023-11-12 02:32:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:58,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:32:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:58,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:32:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:32:58,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:58,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151738159] [2023-11-12 02:32:58,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151738159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:58,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:58,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:32:58,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365541248] [2023-11-12 02:32:58,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:58,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:32:58,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:58,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:32:58,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:32:58,921 INFO L87 Difference]: Start difference. First operand 15114 states and 23508 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:33:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:02,255 INFO L93 Difference]: Finished difference Result 47736 states and 74950 transitions. [2023-11-12 02:33:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:33:02,256 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2023-11-12 02:33:02,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:02,410 INFO L225 Difference]: With dead ends: 47736 [2023-11-12 02:33:02,410 INFO L226 Difference]: Without dead ends: 32625 [2023-11-12 02:33:02,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:02,461 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 1652 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1798 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:02,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1798 Valid, 4300 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:33:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32625 states. [2023-11-12 02:33:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32625 to 30114. [2023-11-12 02:33:04,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30114 states, 23163 states have (on average 1.496092906791003) internal successors, (34654), 23168 states have internal predecessors, (34654), 6086 states have call successors, (6086), 865 states have call predecessors, (6086), 864 states have return successors, (6080), 6080 states have call predecessors, (6080), 6080 states have call successors, (6080) [2023-11-12 02:33:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30114 states to 30114 states and 46820 transitions. [2023-11-12 02:33:04,524 INFO L78 Accepts]: Start accepts. Automaton has 30114 states and 46820 transitions. Word has length 34 [2023-11-12 02:33:04,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:04,525 INFO L495 AbstractCegarLoop]: Abstraction has 30114 states and 46820 transitions. [2023-11-12 02:33:04,525 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:33:04,525 INFO L276 IsEmpty]: Start isEmpty. Operand 30114 states and 46820 transitions. [2023-11-12 02:33:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-12 02:33:04,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:04,528 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] [2023-11-12 02:33:04,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:33:04,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:04,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:04,529 INFO L85 PathProgramCache]: Analyzing trace with hash 524836654, now seen corresponding path program 1 times [2023-11-12 02:33:04,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:04,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090561289] [2023-11-12 02:33:04,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:04,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:05,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:33:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:05,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:33:05,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:05,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090561289] [2023-11-12 02:33:05,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090561289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:05,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:05,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:33:05,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891926356] [2023-11-12 02:33:05,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:05,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:33:05,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:05,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:33:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:05,064 INFO L87 Difference]: Start difference. First operand 30114 states and 46820 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:33:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:09,677 INFO L93 Difference]: Finished difference Result 95136 states and 149318 transitions. [2023-11-12 02:33:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:33:09,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-11-12 02:33:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:10,042 INFO L225 Difference]: With dead ends: 95136 [2023-11-12 02:33:10,042 INFO L226 Difference]: Without dead ends: 65025 [2023-11-12 02:33:10,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:10,145 INFO L413 NwaCegarLoop]: 1708 mSDtfsCounter, 1649 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:10,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 4322 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:33:10,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65025 states. [2023-11-12 02:33:13,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65025 to 60018. [2023-11-12 02:33:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60018 states, 46155 states have (on average 1.495092622684433) internal successors, (69006), 46160 states have internal predecessors, (69006), 12134 states have call successors, (12134), 1729 states have call predecessors, (12134), 1728 states have return successors, (12128), 12128 states have call predecessors, (12128), 12128 states have call successors, (12128) [2023-11-12 02:33:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60018 states to 60018 states and 93268 transitions. [2023-11-12 02:33:14,024 INFO L78 Accepts]: Start accepts. Automaton has 60018 states and 93268 transitions. Word has length 37 [2023-11-12 02:33:14,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:14,025 INFO L495 AbstractCegarLoop]: Abstraction has 60018 states and 93268 transitions. [2023-11-12 02:33:14,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:33:14,025 INFO L276 IsEmpty]: Start isEmpty. Operand 60018 states and 93268 transitions. [2023-11-12 02:33:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 02:33:14,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:14,027 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] [2023-11-12 02:33:14,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:33:14,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:14,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1008794827, now seen corresponding path program 1 times [2023-11-12 02:33:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:14,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819425457] [2023-11-12 02:33:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat