./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--max16065.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx --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 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:15:42,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:15:42,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:15:42,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:15:42,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:15:42,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:15:42,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:15:42,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:15:42,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:15:42,191 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:15:42,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:15:42,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:15:42,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:15:42,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:15:42,195 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:15:42,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:15:42,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:15:42,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:15:42,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:15:42,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:15:42,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:15:42,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:15:42,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:15:42,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:15:42,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:15:42,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:15:42,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:15:42,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:15:42,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:42,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:15:42,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:15:42,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:15:42,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:15:42,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:15:42,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:15:42,207 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:15:42,208 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:15:42,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:15:42,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:15:42,210 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_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 [2023-11-21 22:15:42,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:15:42,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:15:42,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:15:42,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:15:42,561 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:15:42,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2023-11-21 22:15:45,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:15:46,335 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:15:46,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2023-11-21 22:15:46,398 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/data/a8c79bd38/14fa5ce5472644b792fe3147fb5fb546/FLAG1fd195f92 [2023-11-21 22:15:46,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/data/a8c79bd38/14fa5ce5472644b792fe3147fb5fb546 [2023-11-21 22:15:46,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:15:46,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:15:46,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:46,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:15:46,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:15:46,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:46" (1/1) ... [2023-11-21 22:15:46,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8079f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:46, skipping insertion in model container [2023-11-21 22:15:46,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:46" (1/1) ... [2023-11-21 22:15:46,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:15:47,915 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_24b3752a-b638-4a0f-b6e0-b1672d6111ba/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2023-11-21 22:15:48,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:48,182 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:15:48,454 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_24b3752a-b638-4a0f-b6e0-b1672d6111ba/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2023-11-21 22:15:48,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:48,927 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:15:48,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48 WrapperNode [2023-11-21 22:15:48,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:48,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:48,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:15:48,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:15:48,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,367 INFO L138 Inliner]: procedures = 115, calls = 2153, calls flagged for inlining = 45, calls inlined = 37, statements flattened = 5491 [2023-11-21 22:15:49,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:49,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:15:49,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:15:49,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:15:49,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,459 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,777 INFO L187 HeapSplitter]: Split 1713 memory accesses to 24 slices as follows [2, 3, 42, 81, 2, 12, 30, 1, 1, 1, 7, 7, 8, 1, 7, 5, 3, 1186, 1, 1, 1, 1, 3, 307] [2023-11-21 22:15:49,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:49,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:50,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:50,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:50,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:15:50,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:15:50,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:15:50,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:15:50,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (1/1) ... [2023-11-21 22:15:50,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:50,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:50,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:50,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_set_limit [2023-11-21 22:15:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_set_limit [2023-11-21 22:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 22:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 22:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 22:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 22:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 22:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-21 22:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-21 22:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-21 22:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-21 22:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-21 22:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-21 22:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-21 22:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-21 22:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-21 22:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-21 22:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-21 22:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-21 22:15:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-21 22:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-21 22:15:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-21 22:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_limit [2023-11-21 22:15:50,247 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_limit [2023-11-21 22:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_update_device [2023-11-21 22:15:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_update_device [2023-11-21 22:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_input [2023-11-21 22:15:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_input [2023-11-21 22:15:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_read_adc [2023-11-21 22:15:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_read_adc [2023-11-21 22:15:50,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:15:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:15:50,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_max16065_data [2023-11-21 22:15:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_max16065_data [2023-11-21 22:15:50,250 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_show_alarm [2023-11-21 22:15:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_show_alarm [2023-11-21 22:15:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure LIMIT_TO_MV [2023-11-21 22:15:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure LIMIT_TO_MV [2023-11-21 22:15:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:15:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:15:50,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:15:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 22:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 22:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 22:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 22:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 22:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-21 22:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-21 22:15:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-21 22:15:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-21 22:15:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-21 22:15:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-21 22:15:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-21 22:15:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-21 22:15:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-21 22:15:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-21 22:15:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-21 22:15:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:15:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:15:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:15:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:15:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:15:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:15:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:15:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 22:15:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 22:15:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:15:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:15:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:15:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 22:15:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 22:15:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 22:15:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 22:15:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 22:15:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 22:15:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 22:15:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 22:15:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 22:15:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 22:15:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 22:15:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-21 22:15:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-21 22:15:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-21 22:15:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-21 22:15:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-21 22:15:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-21 22:15:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-21 22:15:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-21 22:15:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2023-11-21 22:15:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2023-11-21 22:15:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2023-11-21 22:15:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:15:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2023-11-21 22:15:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_max16065_data [2023-11-21 22:15:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-21 22:15:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-21 22:15:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:15:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:15:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 22:15:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 22:15:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 22:15:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 22:15:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 22:15:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 22:15:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 22:15:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 22:15:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 22:15:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 22:15:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 22:15:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-21 22:15:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-21 22:15:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-21 22:15:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-21 22:15:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-21 22:15:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-21 22:15:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-21 22:15:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-21 22:15:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2023-11-21 22:15:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2023-11-21 22:15:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2023-11-21 22:15:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:15:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 22:15:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 22:15:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 22:15:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 22:15:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 22:15:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 22:15:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 22:15:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 22:15:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 22:15:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 22:15:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 22:15:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 22:15:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 22:15:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-21 22:15:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-21 22:15:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-21 22:15:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-21 22:15:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-21 22:15:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-21 22:15:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-21 22:15:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-21 22:15:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2023-11-21 22:15:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2023-11-21 22:15:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2023-11-21 22:15:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure max16065_cleanup [2023-11-21 22:15:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure max16065_cleanup [2023-11-21 22:15:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:15:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:15:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:15:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:15:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:15:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:15:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:15:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:15:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 22:15:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 22:15:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 22:15:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 22:15:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 22:15:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 22:15:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 22:15:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 22:15:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-21 22:15:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-21 22:15:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-21 22:15:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-21 22:15:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-21 22:15:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-21 22:15:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-21 22:15:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-21 22:15:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-21 22:15:50,295 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-21 22:15:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:15:50,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:15:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2023-11-21 22:15:50,295 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2023-11-21 22:15:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-21 22:15:50,296 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-21 22:15:51,237 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:15:51,240 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:15:58,527 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:05,125 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:05,126 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:16:05,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:05 BoogieIcfgContainer [2023-11-21 22:16:05,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:05,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:16:05,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:16:05,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:16:05,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:15:46" (1/3) ... [2023-11-21 22:16:05,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7107b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:05, skipping insertion in model container [2023-11-21 22:16:05,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:48" (2/3) ... [2023-11-21 22:16:05,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7107b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:05, skipping insertion in model container [2023-11-21 22:16:05,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:05" (3/3) ... [2023-11-21 22:16:05,144 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2023-11-21 22:16:05,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:16:05,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:16:05,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:16:05,302 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;@975952c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:16:05,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:16:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 875 states, 670 states have (on average 1.6761194029850746) internal successors, (1123), 677 states have internal predecessors, (1123), 182 states have call successors, (182), 21 states have call predecessors, (182), 21 states have return successors, (182), 182 states have call predecessors, (182), 182 states have call successors, (182) [2023-11-21 22:16:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:16:05,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:05,353 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] [2023-11-21 22:16:05,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:05,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:05,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1992223235, now seen corresponding path program 1 times [2023-11-21 22:16:05,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:05,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747599552] [2023-11-21 22:16:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:05,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:06,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:16:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:06,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:06,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747599552] [2023-11-21 22:16:06,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747599552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:06,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:06,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:16:06,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183261913] [2023-11-21 22:16:06,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:06,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:16:06,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:07,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:16:07,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:16:07,010 INFO L87 Difference]: Start difference. First operand has 875 states, 670 states have (on average 1.6761194029850746) internal successors, (1123), 677 states have internal predecessors, (1123), 182 states have call successors, (182), 21 states have call predecessors, (182), 21 states have return successors, (182), 182 states have call predecessors, (182), 182 states have call successors, (182) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-21 22:16:10,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-21 22:16:12,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:12,675 INFO L93 Difference]: Finished difference Result 2710 states and 4904 transitions. [2023-11-21 22:16:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:16:12,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 29 [2023-11-21 22:16:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:12,744 INFO L225 Difference]: With dead ends: 2710 [2023-11-21 22:16:12,749 INFO L226 Difference]: Without dead ends: 1832 [2023-11-21 22:16:12,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:16:12,776 INFO L413 NwaCegarLoop]: 1364 mSDtfsCounter, 1569 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 414 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 3767 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:12,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 3767 Invalid, 1041 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [414 Valid, 626 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2023-11-21 22:16:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2023-11-21 22:16:13,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1725. [2023-11-21 22:16:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1327 states have (on average 1.6744536548605877) internal successors, (2222), 1332 states have internal predecessors, (2222), 357 states have call successors, (357), 41 states have call predecessors, (357), 40 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2023-11-21 22:16:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2930 transitions. [2023-11-21 22:16:13,093 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2930 transitions. Word has length 29 [2023-11-21 22:16:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:13,094 INFO L495 AbstractCegarLoop]: Abstraction has 1725 states and 2930 transitions. [2023-11-21 22:16:13,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-21 22:16:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2930 transitions. [2023-11-21 22:16:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 22:16:13,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:13,099 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] [2023-11-21 22:16:13,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:16:13,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:13,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:13,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1694010900, now seen corresponding path program 1 times [2023-11-21 22:16:13,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:13,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951794716] [2023-11-21 22:16:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:13,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:14,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 22:16:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:14,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:14,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951794716] [2023-11-21 22:16:14,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951794716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:14,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:14,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:16:14,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689368199] [2023-11-21 22:16:14,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:14,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:16:14,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:14,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:16:14,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:16:14,067 INFO L87 Difference]: Start difference. First operand 1725 states and 2930 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) [2023-11-21 22:16:16,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-21 22:16:19,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:19,017 INFO L93 Difference]: Finished difference Result 5352 states and 9348 transitions. [2023-11-21 22:16:19,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:16:19,019 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 [2023-11-21 22:16:19,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:19,070 INFO L225 Difference]: With dead ends: 5352 [2023-11-21 22:16:19,071 INFO L226 Difference]: Without dead ends: 3628 [2023-11-21 22:16:19,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:16:19,088 INFO L413 NwaCegarLoop]: 1369 mSDtfsCounter, 1566 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 3788 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:19,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 3788 Invalid, 1042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [416 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-21 22:16:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2023-11-21 22:16:19,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3427. [2023-11-21 22:16:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 2640 states have (on average 1.6742424242424243) internal successors, (4420), 2645 states have internal predecessors, (4420), 706 states have call successors, (706), 81 states have call predecessors, (706), 80 states have return successors, (700), 700 states have call predecessors, (700), 700 states have call successors, (700) [2023-11-21 22:16:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5826 transitions. [2023-11-21 22:16:19,479 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5826 transitions. Word has length 30 [2023-11-21 22:16:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:19,480 INFO L495 AbstractCegarLoop]: Abstraction has 3427 states and 5826 transitions. [2023-11-21 22:16:19,480 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) [2023-11-21 22:16:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5826 transitions. [2023-11-21 22:16:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 22:16:19,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:19,483 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] [2023-11-21 22:16:19,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:16:19,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:19,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1301794829, now seen corresponding path program 1 times [2023-11-21 22:16:19,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:19,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425977940] [2023-11-21 22:16:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:19,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:20,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:20,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425977940] [2023-11-21 22:16:20,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-21 22:16:20,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80594565] [2023-11-21 22:16:20,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:20,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:16:20,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:20,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:16:20,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:16:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:22,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 6884 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:16:22,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:22,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:16:22,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80594565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:22,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:22,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:16:22,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556782233] [2023-11-21 22:16:22,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:22,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:16:22,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:16:22,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:22,282 INFO L87 Difference]: Start difference. First operand 3427 states and 5826 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:16:24,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-21 22:16:26,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-21 22:16:28,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-21 22:16:29,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:29,164 INFO L93 Difference]: Finished difference Result 10262 states and 17450 transitions. [2023-11-21 22:16:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:16:29,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2023-11-21 22:16:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:29,226 INFO L225 Difference]: With dead ends: 10262 [2023-11-21 22:16:29,227 INFO L226 Difference]: Without dead ends: 6836 [2023-11-21 22:16:29,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:29,247 INFO L413 NwaCegarLoop]: 1364 mSDtfsCounter, 1456 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:29,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 2710 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 258 Invalid, 3 Unknown, 0 Unchecked, 6.6s Time] [2023-11-21 22:16:29,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2023-11-21 22:16:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 6823. [2023-11-21 22:16:29,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6823 states, 5264 states have (on average 1.6740121580547112) internal successors, (8812), 5269 states have internal predecessors, (8812), 1398 states have call successors, (1398), 161 states have call predecessors, (1398), 160 states have return successors, (1392), 1392 states have call predecessors, (1392), 1392 states have call successors, (1392) [2023-11-21 22:16:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6823 states to 6823 states and 11602 transitions. [2023-11-21 22:16:29,797 INFO L78 Accepts]: Start accepts. Automaton has 6823 states and 11602 transitions. Word has length 34 [2023-11-21 22:16:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:29,797 INFO L495 AbstractCegarLoop]: Abstraction has 6823 states and 11602 transitions. [2023-11-21 22:16:29,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:16:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6823 states and 11602 transitions. [2023-11-21 22:16:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 22:16:29,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:29,802 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] [2023-11-21 22:16:29,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:30,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24b3752a-b638-4a0f-b6e0-b1672d6111ba/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:16:30,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:30,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:30,022 INFO L85 PathProgramCache]: Analyzing trace with hash 824352199, now seen corresponding path program 1 times [2023-11-21 22:16:30,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:30,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23588026] [2023-11-21 22:16:30,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:30,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat