./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 cf1a7837 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_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/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_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/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_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/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 a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:06:49,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:06:49,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:06:49,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:06:49,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:06:49,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:06:49,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:06:49,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:06:49,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:06:49,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:06:49,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:06:49,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:06:49,678 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:06:49,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:06:49,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:06:49,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:06:49,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:06:49,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:06:49,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:06:49,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:06:49,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:06:49,685 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:06:49,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:06:49,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:06:49,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:06:49,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:06:49,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:06:49,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:06:49,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:06:49,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:06:49,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:06:49,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:06:49,692 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:06:49,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:06:49,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:06:49,694 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:06:49,695 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_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2023-11-12 02:06:49,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:06:49,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:06:49,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:06:49,986 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:06:49,987 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:06:49,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-12 02:06:53,336 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:06:53,943 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:06:53,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-12 02:06:53,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/data/72b2cb289/6607f1e1a3a84470b6378710e96b71e6/FLAG346cf9283 [2023-11-12 02:06:54,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/data/72b2cb289/6607f1e1a3a84470b6378710e96b71e6 [2023-11-12 02:06:54,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:06:54,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:06:54,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:06:54,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:06:54,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:06:54,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:06:54" (1/1) ... [2023-11-12 02:06:54,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4153fc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:54, skipping insertion in model container [2023-11-12 02:06:54,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:06:54" (1/1) ... [2023-11-12 02:06:54,179 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:06:55,588 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_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-12 02:06:55,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:06:55,815 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:06:56,072 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_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2023-11-12 02:06:56,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:06:56,376 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:06:56,385 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:06:56,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56 WrapperNode [2023-11-12 02:06:56,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:06:56,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:06:56,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:06:56,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:06:56,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:56,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:56,771 INFO L138 Inliner]: procedures = 184, calls = 2071, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5448 [2023-11-12 02:06:56,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:06:56,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:06:56,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:06:56,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:06:56,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:56,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:56,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:56,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:56,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:56,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:57,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:57,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:57,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:06:57,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:06:57,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:06:57,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:06:57,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (1/1) ... [2023-11-12 02:06:57,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:06:57,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:06:57,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:06:57,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6649fa9c-8dbe-4c80-ae8a-e722ad17a03a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:06:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2023-11-12 02:06:57,199 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2023-11-12 02:06:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 02:06:57,199 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 02:06:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2023-11-12 02:06:57,200 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2023-11-12 02:06:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-12 02:06:57,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2023-11-12 02:06:57,200 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2023-11-12 02:06:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2023-11-12 02:06:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-12 02:06:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2023-11-12 02:06:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2023-11-12 02:06:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2023-11-12 02:06:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:06:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2023-11-12 02:06:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2023-11-12 02:06:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2023-11-12 02:06:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2023-11-12 02:06:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-12 02:06:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-12 02:06:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-12 02:06:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-12 02:06:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2023-11-12 02:06:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2023-11-12 02:06:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2023-11-12 02:06:57,206 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2023-11-12 02:06:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:06:57,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:06:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2023-11-12 02:06:57,207 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2023-11-12 02:06:57,207 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2023-11-12 02:06:57,208 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2023-11-12 02:06:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-12 02:06:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2023-11-12 02:06:57,209 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2023-11-12 02:06:57,210 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2023-11-12 02:06:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2023-11-12 02:06:57,210 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2023-11-12 02:06:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2023-11-12 02:06:57,210 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2023-11-12 02:06:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:06:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:06:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:06:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:06:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:06:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-12 02:06:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-12 02:06:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-12 02:06:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-12 02:06:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2023-11-12 02:06:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2023-11-12 02:06:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2023-11-12 02:06:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2023-11-12 02:06:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:06:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:06:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2023-11-12 02:06:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2023-11-12 02:06:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2023-11-12 02:06:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2023-11-12 02:06:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2023-11-12 02:06:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2023-11-12 02:06:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2023-11-12 02:06:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2023-11-12 02:06:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:06:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 02:06:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 02:06:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2023-11-12 02:06:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2023-11-12 02:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:06:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:06:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2023-11-12 02:06:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2023-11-12 02:06:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2023-11-12 02:06:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2023-11-12 02:06:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 02:06:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-12 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2023-11-12 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2023-11-12 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2023-11-12 02:06:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-11-12 02:06:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-11-12 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-12 02:06:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-12 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-12 02:06:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-12 02:06:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2023-11-12 02:06:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2023-11-12 02:06:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:06:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-12 02:06:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-12 02:06:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:06:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2023-11-12 02:06:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2023-11-12 02:06:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-12 02:06:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-12 02:06:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:06:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-12 02:06:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-12 02:06:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:06:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:06:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2023-11-12 02:06:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2023-11-12 02:06:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2023-11-12 02:06:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2023-11-12 02:06:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-12 02:06:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-12 02:06:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2023-11-12 02:06:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2023-11-12 02:06:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 02:06:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 02:06:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2023-11-12 02:06:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2023-11-12 02:06:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:06:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-12 02:06:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-12 02:06:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:06:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:06:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 02:06:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 02:06:58,094 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:06:58,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:07:04,825 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:07:04,847 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:07:04,847 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:07:04,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:04 BoogieIcfgContainer [2023-11-12 02:07:04,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:07:04,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:07:04,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:07:04,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:07:04,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:06:54" (1/3) ... [2023-11-12 02:07:04,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d205931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:04, skipping insertion in model container [2023-11-12 02:07:04,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:56" (2/3) ... [2023-11-12 02:07:04,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d205931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:04, skipping insertion in model container [2023-11-12 02:07:04,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:04" (3/3) ... [2023-11-12 02:07:04,865 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2023-11-12 02:07:04,885 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:07:04,885 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:07:04,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:07:04,999 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;@22584786, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:07:04,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:07:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 1369 states, 1028 states have (on average 1.4873540856031129) internal successors, (1529), 1042 states have internal predecessors, (1529), 285 states have call successors, (285), 54 states have call predecessors, (285), 54 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) [2023-11-12 02:07:05,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 02:07:05,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:05,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:05,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:05,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:05,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1498318954, now seen corresponding path program 1 times [2023-11-12 02:07:05,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:05,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309078657] [2023-11-12 02:07:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:05,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:07:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:06,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:06,228 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 02:07:06,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:06,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309078657] [2023-11-12 02:07:06,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309078657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:06,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:06,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:06,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030961993] [2023-11-12 02:07:06,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:06,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:06,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:06,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:06,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:06,305 INFO L87 Difference]: Start difference. First operand has 1369 states, 1028 states have (on average 1.4873540856031129) internal successors, (1529), 1042 states have internal predecessors, (1529), 285 states have call successors, (285), 54 states have call predecessors, (285), 54 states have return successors, (285), 283 states have call predecessors, (285), 285 states have call successors, (285) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:09,730 INFO L93 Difference]: Finished difference Result 4235 states and 6950 transitions. [2023-11-12 02:07:09,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:07:09,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-12 02:07:09,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:09,779 INFO L225 Difference]: With dead ends: 4235 [2023-11-12 02:07:09,779 INFO L226 Difference]: Without dead ends: 2861 [2023-11-12 02:07:09,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:09,804 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 2303 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:09,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2456 Valid, 5687 Invalid, 1383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [595 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-12 02:07:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2023-11-12 02:07:10,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2694. [2023-11-12 02:07:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2028 states have (on average 1.4861932938856015) internal successors, (3014), 2044 states have internal predecessors, (3014), 559 states have call successors, (559), 107 states have call predecessors, (559), 106 states have return successors, (550), 546 states have call predecessors, (550), 550 states have call successors, (550) [2023-11-12 02:07:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 4123 transitions. [2023-11-12 02:07:10,108 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 4123 transitions. Word has length 35 [2023-11-12 02:07:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:10,109 INFO L495 AbstractCegarLoop]: Abstraction has 2694 states and 4123 transitions. [2023-11-12 02:07:10,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 4123 transitions. [2023-11-12 02:07:10,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-12 02:07:10,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:10,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:10,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:07:10,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:10,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:10,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1338577943, now seen corresponding path program 1 times [2023-11-12 02:07:10,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:10,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986020521] [2023-11-12 02:07:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:10,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:07:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:10,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:10,856 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 02:07:10,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:10,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986020521] [2023-11-12 02:07:10,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986020521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:10,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:10,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:10,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031321865] [2023-11-12 02:07:10,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:10,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:10,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:10,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:10,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:10,862 INFO L87 Difference]: Start difference. First operand 2694 states and 4123 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:13,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:13,864 INFO L93 Difference]: Finished difference Result 8306 states and 12899 transitions. [2023-11-12 02:07:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:07:13,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-12 02:07:13,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:13,914 INFO L225 Difference]: With dead ends: 8306 [2023-11-12 02:07:13,915 INFO L226 Difference]: Without dead ends: 5615 [2023-11-12 02:07:13,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:13,936 INFO L413 NwaCegarLoop]: 2264 mSDtfsCounter, 2239 mSDsluCounter, 3470 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 5734 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:13,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 5734 Invalid, 1370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [570 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-12 02:07:13,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2023-11-12 02:07:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 5300. [2023-11-12 02:07:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 3996 states have (on average 1.486986986986987) internal successors, (5942), 4020 states have internal predecessors, (5942), 1091 states have call successors, (1091), 213 states have call predecessors, (1091), 212 states have return successors, (1082), 1074 states have call predecessors, (1082), 1082 states have call successors, (1082) [2023-11-12 02:07:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 8115 transitions. [2023-11-12 02:07:14,261 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 8115 transitions. Word has length 38 [2023-11-12 02:07:14,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:14,261 INFO L495 AbstractCegarLoop]: Abstraction has 5300 states and 8115 transitions. [2023-11-12 02:07:14,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:14,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 8115 transitions. [2023-11-12 02:07:14,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 02:07:14,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:14,264 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 02:07:14,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:07:14,264 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:14,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:14,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1108347533, now seen corresponding path program 1 times [2023-11-12 02:07:14,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:14,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803992762] [2023-11-12 02:07:14,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:14,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:14,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:07:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:14,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:14,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:14,827 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 02:07:14,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:14,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803992762] [2023-11-12 02:07:14,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803992762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:14,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:14,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:14,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603089988] [2023-11-12 02:07:14,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:14,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:14,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:14,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:14,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:14,835 INFO L87 Difference]: Start difference. First operand 5300 states and 8115 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:17,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:17,806 INFO L93 Difference]: Finished difference Result 16446 states and 25551 transitions. [2023-11-12 02:07:17,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:07:17,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-12 02:07:17,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:17,911 INFO L225 Difference]: With dead ends: 16446 [2023-11-12 02:07:17,912 INFO L226 Difference]: Without dead ends: 11149 [2023-11-12 02:07:17,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:17,978 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 2348 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 5717 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:17,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 5717 Invalid, 1406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [611 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 02:07:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2023-11-12 02:07:18,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 10538. [2023-11-12 02:07:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10538 states, 7948 states have (on average 1.486160040261701) internal successors, (11812), 7988 states have internal predecessors, (11812), 2165 states have call successors, (2165), 425 states have call predecessors, (2165), 424 states have return successors, (2156), 2140 states have call predecessors, (2156), 2156 states have call successors, (2156) [2023-11-12 02:07:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10538 states to 10538 states and 16133 transitions. [2023-11-12 02:07:18,720 INFO L78 Accepts]: Start accepts. Automaton has 10538 states and 16133 transitions. Word has length 36 [2023-11-12 02:07:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:18,721 INFO L495 AbstractCegarLoop]: Abstraction has 10538 states and 16133 transitions. [2023-11-12 02:07:18,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand 10538 states and 16133 transitions. [2023-11-12 02:07:18,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 02:07:18,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:18,727 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 02:07:18,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:07:18,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:18,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1105367059, now seen corresponding path program 1 times [2023-11-12 02:07:18,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:18,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073572722] [2023-11-12 02:07:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:18,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:07:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:19,231 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 02:07:19,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073572722] [2023-11-12 02:07:19,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073572722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:19,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:19,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:19,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734194040] [2023-11-12 02:07:19,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:19,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:19,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:19,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:19,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:19,235 INFO L87 Difference]: Start difference. First operand 10538 states and 16133 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:22,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:22,700 INFO L93 Difference]: Finished difference Result 32744 states and 50873 transitions. [2023-11-12 02:07:22,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:07:22,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-12 02:07:22,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:22,859 INFO L225 Difference]: With dead ends: 32744 [2023-11-12 02:07:22,860 INFO L226 Difference]: Without dead ends: 22209 [2023-11-12 02:07:22,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:22,932 INFO L413 NwaCegarLoop]: 2136 mSDtfsCounter, 2356 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 5565 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:22,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 5565 Invalid, 1426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [644 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 02:07:22,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22209 states. [2023-11-12 02:07:24,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22209 to 21006. [2023-11-12 02:07:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21006 states, 15844 states have (on average 1.4854834637717749) internal successors, (23536), 15916 states have internal predecessors, (23536), 4313 states have call successors, (4313), 849 states have call predecessors, (4313), 848 states have return successors, (4304), 4272 states have call predecessors, (4304), 4304 states have call successors, (4304) [2023-11-12 02:07:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21006 states to 21006 states and 32153 transitions. [2023-11-12 02:07:24,203 INFO L78 Accepts]: Start accepts. Automaton has 21006 states and 32153 transitions. Word has length 36 [2023-11-12 02:07:24,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:24,203 INFO L495 AbstractCegarLoop]: Abstraction has 21006 states and 32153 transitions. [2023-11-12 02:07:24,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:24,204 INFO L276 IsEmpty]: Start isEmpty. Operand 21006 states and 32153 transitions. [2023-11-12 02:07:24,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 02:07:24,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:24,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:24,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:07:24,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:24,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:24,208 INFO L85 PathProgramCache]: Analyzing trace with hash 269111987, now seen corresponding path program 1 times [2023-11-12 02:07:24,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:24,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957233562] [2023-11-12 02:07:24,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:24,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:07:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:24,625 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 02:07:24,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:24,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957233562] [2023-11-12 02:07:24,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957233562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:24,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:24,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:24,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906316059] [2023-11-12 02:07:24,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:24,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:24,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:24,629 INFO L87 Difference]: Start difference. First operand 21006 states and 32153 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:29,119 INFO L93 Difference]: Finished difference Result 65252 states and 101381 transitions. [2023-11-12 02:07:29,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:07:29,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2023-11-12 02:07:29,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:29,476 INFO L225 Difference]: With dead ends: 65252 [2023-11-12 02:07:29,476 INFO L226 Difference]: Without dead ends: 44249 [2023-11-12 02:07:29,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:29,580 INFO L413 NwaCegarLoop]: 2287 mSDtfsCounter, 2299 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 5809 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:29,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2475 Valid, 5809 Invalid, 1396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [589 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-12 02:07:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44249 states. [2023-11-12 02:07:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44249 to 41862. [2023-11-12 02:07:32,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41862 states, 31564 states have (on average 1.4852363452033963) internal successors, (46880), 31700 states have internal predecessors, (46880), 8601 states have call successors, (8601), 1697 states have call predecessors, (8601), 1696 states have return successors, (8592), 8528 states have call predecessors, (8592), 8592 states have call successors, (8592) [2023-11-12 02:07:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41862 states to 41862 states and 64073 transitions. [2023-11-12 02:07:32,650 INFO L78 Accepts]: Start accepts. Automaton has 41862 states and 64073 transitions. Word has length 41 [2023-11-12 02:07:32,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:32,651 INFO L495 AbstractCegarLoop]: Abstraction has 41862 states and 64073 transitions. [2023-11-12 02:07:32,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:07:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 41862 states and 64073 transitions. [2023-11-12 02:07:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-12 02:07:32,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:32,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:32,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:07:32,654 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:32,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1155077072, now seen corresponding path program 1 times [2023-11-12 02:07:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:32,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902540353] [2023-11-12 02:07:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:07:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:33,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:33,224 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 02:07:33,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:33,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902540353] [2023-11-12 02:07:33,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902540353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:33,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:33,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:33,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194004652] [2023-11-12 02:07:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:33,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:33,227 INFO L87 Difference]: Start difference. First operand 41862 states and 64073 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)