./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/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_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/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_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/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 1610c58515d73bdfdad707c23c4cb637664025646e23343fbae03dec8c78d8dc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:31:38,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:31:38,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:31:38,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:31:38,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:31:38,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:31:38,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:31:38,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:31:38,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:31:38,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:31:38,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:31:38,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:31:39,000 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:31:39,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:31:39,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:31:39,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:31:39,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:31:39,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:31:39,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:31:39,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:31:39,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:31:39,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:31:39,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:31:39,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:31:39,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:31:39,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:39,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:31:39,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:31:39,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:31:39,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:31:39,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:31:39,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:31:39,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:31:39,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:31:39,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:31:39,014 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:31:39,015 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_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1610c58515d73bdfdad707c23c4cb637664025646e23343fbae03dec8c78d8dc [2023-11-12 02:31:39,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:31:39,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:31:39,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:31:39,279 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:31:39,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:31:39,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i [2023-11-12 02:31:42,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:31:43,164 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:31:43,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i [2023-11-12 02:31:43,215 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/data/9e075d7a5/76239ec651b4426f90b87db41bd9be37/FLAG535da9396 [2023-11-12 02:31:43,231 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/data/9e075d7a5/76239ec651b4426f90b87db41bd9be37 [2023-11-12 02:31:43,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:31:43,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:31:43,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:43,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:31:43,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:31:43,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:43" (1/1) ... [2023-11-12 02:31:43,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27016b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:43, skipping insertion in model container [2023-11-12 02:31:43,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:43" (1/1) ... [2023-11-12 02:31:43,368 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:31:44,823 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_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i[176229,176242] [2023-11-12 02:31:44,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:44,882 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:31:45,212 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_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i[176229,176242] [2023-11-12 02:31:45,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:45,345 WARN L672 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:31:45,354 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:31:45,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45 WrapperNode [2023-11-12 02:31:45,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:45,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:45,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:31:45,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:31:45,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,616 INFO L138 Inliner]: procedures = 146, calls = 1243, calls flagged for inlining = 65, calls inlined = 65, statements flattened = 3155 [2023-11-12 02:31:45,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:45,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:31:45,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:31:45,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:31:45,634 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:31:45,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:31:45,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:31:45,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:31:45,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (1/1) ... [2023-11-12 02:31:45,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:45,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:31:46,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:31:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-12 02:31:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-12 02:31:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:31:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:31:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:31:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:31:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-12 02:31:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-12 02:31:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-12 02:31:46,033 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-12 02:31:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-12 02:31:46,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-12 02:31:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-12 02:31:46,034 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-12 02:31:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-12 02:31:46,035 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-12 02:31:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:31:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:31:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-12 02:31:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-12 02:31:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-12 02:31:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-12 02:31:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-12 02:31:46,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-12 02:31:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:31:46,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:31:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 02:31:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 02:31:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-12 02:31:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-12 02:31:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:31:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:31:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:31:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 02:31:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 02:31:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2023-11-12 02:31:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2023-11-12 02:31:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-12 02:31:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-12 02:31:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:31:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:31:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-12 02:31:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-12 02:31:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-12 02:31:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-12 02:31:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-12 02:31:46,043 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-12 02:31:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:31:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-12 02:31:46,043 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-12 02:31:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-12 02:31:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-12 02:31:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-12 02:31:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-12 02:31:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-12 02:31:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-12 02:31:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:31:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:31:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-12 02:31:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-12 02:31:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:31:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-12 02:31:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-12 02:31:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-12 02:31:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-12 02:31:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-12 02:31:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-12 02:31:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-12 02:31:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-12 02:31:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-12 02:31:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-12 02:31:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:31:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 02:31:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 02:31:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:31:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:31:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-12 02:31:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-12 02:31:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 02:31:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 02:31:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-12 02:31:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-12 02:31:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:31:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:31:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-12 02:31:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-12 02:31:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:31:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:31:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:31:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:31:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-11-12 02:31:46,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-11-12 02:31:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-12 02:31:46,054 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-12 02:31:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:31:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-12 02:31:46,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-12 02:31:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-12 02:31:46,054 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-12 02:31:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-12 02:31:46,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-12 02:31:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-12 02:31:46,055 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-12 02:31:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-12 02:31:46,055 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-12 02:31:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-12 02:31:46,056 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-12 02:31:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-12 02:31:46,056 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-12 02:31:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:31:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-12 02:31:46,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:31:46,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:31:46,540 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:31:46,544 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:31:52,260 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:31:52,279 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:31:52,280 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:31:52,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:52 BoogieIcfgContainer [2023-11-12 02:31:52,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:31:52,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:31:52,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:31:52,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:31:52,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:31:43" (1/3) ... [2023-11-12 02:31:52,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c70e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:52, skipping insertion in model container [2023-11-12 02:31:52,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:45" (2/3) ... [2023-11-12 02:31:52,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c70e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:52, skipping insertion in model container [2023-11-12 02:31:52,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:52" (3/3) ... [2023-11-12 02:31:52,298 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i [2023-11-12 02:31:52,319 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:31:52,320 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:31:52,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:31:52,427 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;@754b9d44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:31:52,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:31:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 1165 states, 871 states have (on average 1.4087256027554536) internal successors, (1227), 879 states have internal predecessors, (1227), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-12 02:31:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-12 02:31:52,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:52,491 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:52,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:52,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:52,499 INFO L85 PathProgramCache]: Analyzing trace with hash 762924268, now seen corresponding path program 1 times [2023-11-12 02:31:52,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:52,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879428222] [2023-11-12 02:31:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:52,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:31:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:31:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-12 02:31:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:31:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:31:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:31:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:31:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-12 02:31:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-12 02:31:53,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:53,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879428222] [2023-11-12 02:31:53,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879428222] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:53,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610654537] [2023-11-12 02:31:53,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:53,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:53,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:54,003 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:54,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:31:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:54,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:31:54,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:31:54,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:54,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610654537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:54,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:54,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 6 [2023-11-12 02:31:54,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788638777] [2023-11-12 02:31:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:54,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:54,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:54,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:54,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:54,845 INFO L87 Difference]: Start difference. First operand has 1165 states, 871 states have (on average 1.4087256027554536) internal successors, (1227), 879 states have internal predecessors, (1227), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:31:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:55,127 INFO L93 Difference]: Finished difference Result 2331 states and 3459 transitions. [2023-11-12 02:31:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:31:55,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2023-11-12 02:31:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:55,159 INFO L225 Difference]: With dead ends: 2331 [2023-11-12 02:31:55,159 INFO L226 Difference]: Without dead ends: 1156 [2023-11-12 02:31:55,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:55,175 INFO L413 NwaCegarLoop]: 1706 mSDtfsCounter, 1 mSDsluCounter, 5111 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6817 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:55,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6817 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-11-12 02:31:55,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2023-11-12 02:31:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 863 states have (on average 1.3974507531865585) internal successors, (1206), 871 states have internal predecessors, (1206), 243 states have call successors, (243), 48 states have call predecessors, (243), 49 states have return successors, (250), 243 states have call predecessors, (250), 243 states have call successors, (250) [2023-11-12 02:31:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1699 transitions. [2023-11-12 02:31:55,359 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1699 transitions. Word has length 87 [2023-11-12 02:31:55,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:55,359 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1699 transitions. [2023-11-12 02:31:55,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:31:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1699 transitions. [2023-11-12 02:31:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-12 02:31:55,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:55,371 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:55,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:31:55,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:31:55,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:55,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:55,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1525842661, now seen corresponding path program 1 times [2023-11-12 02:31:55,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:55,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384093448] [2023-11-12 02:31:55,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:55,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:31:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:31:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:31:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:31:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-12 02:31:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:31:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-12 02:31:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:31:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-12 02:31:56,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384093448] [2023-11-12 02:31:56,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384093448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018078492] [2023-11-12 02:31:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:56,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:56,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:56,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:56,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:31:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:57,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:31:57,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:57,051 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:31:57,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:57,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018078492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:57,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:57,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 6 [2023-11-12 02:31:57,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385338850] [2023-11-12 02:31:57,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:57,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:57,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:57,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:57,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:57,054 INFO L87 Difference]: Start difference. First operand 1156 states and 1699 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:31:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:57,184 INFO L93 Difference]: Finished difference Result 2304 states and 3385 transitions. [2023-11-12 02:31:57,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:31:57,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2023-11-12 02:31:57,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:57,202 INFO L225 Difference]: With dead ends: 2304 [2023-11-12 02:31:57,202 INFO L226 Difference]: Without dead ends: 1156 [2023-11-12 02:31:57,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:57,209 INFO L413 NwaCegarLoop]: 1690 mSDtfsCounter, 0 mSDsluCounter, 5062 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:57,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6752 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-11-12 02:31:57,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2023-11-12 02:31:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 863 states have (on average 1.3974507531865585) internal successors, (1206), 871 states have internal predecessors, (1206), 243 states have call successors, (243), 48 states have call predecessors, (243), 49 states have return successors, (249), 243 states have call predecessors, (249), 243 states have call successors, (249) [2023-11-12 02:31:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1698 transitions. [2023-11-12 02:31:57,281 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1698 transitions. Word has length 90 [2023-11-12 02:31:57,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:57,281 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1698 transitions. [2023-11-12 02:31:57,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 02:31:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1698 transitions. [2023-11-12 02:31:57,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-12 02:31:57,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:57,286 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:57,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-12 02:31:57,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ee0ca1-d5b7-4a84-a75a-6c2a71926398/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:57,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:57,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:57,496 INFO L85 PathProgramCache]: Analyzing trace with hash -746418024, now seen corresponding path program 2 times [2023-11-12 02:31:57,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:57,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431577672] [2023-11-12 02:31:57,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:57,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:31:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:31:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:31:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:31:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:31:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:31:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:31:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:31:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-12 02:31:59,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:59,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431577672] [2023-11-12 02:31:59,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431577672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:59,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:59,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:31:59,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530251660] [2023-11-12 02:31:59,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:59,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:31:59,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:59,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:31:59,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:31:59,373 INFO L87 Difference]: Start difference. First operand 1156 states and 1698 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 02:32:09,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:32:11,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:32:12,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:32:14,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:32:16,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:32:17,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:32:17,079 INFO L93 Difference]: Finished difference Result 2332 states and 3427 transitions. [2023-11-12 02:32:17,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:32:17,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2023-11-12 02:32:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:32:17,091 INFO L225 Difference]: With dead ends: 2332 [2023-11-12 02:32:17,091 INFO L226 Difference]: Without dead ends: 1199 [2023-11-12 02:32:17,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:32:17,098 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 321 mSDsluCounter, 7588 mSDsCounter, 0 mSdLazyCounter, 4007 mSolverCounterSat, 221 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 8983 SdHoareTripleChecker+Invalid, 4231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 4007 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:32:17,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 8983 Invalid, 4231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [221 Valid, 4007 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2023-11-12 02:32:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2023-11-12 02:32:17,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1162. [2023-11-12 02:32:17,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 868 states have (on average 1.3963133640552996) internal successors, (1212), 876 states have internal predecessors, (1212), 243 states have call successors, (243), 48 states have call predecessors, (243), 50 states have return successors, (252), 244 states have call predecessors, (252), 243 states have call successors, (252) [2023-11-12 02:32:17,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1707 transitions. [2023-11-12 02:32:17,165 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1707 transitions. Word has length 93 [2023-11-12 02:32:17,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:32:17,166 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1707 transitions. [2023-11-12 02:32:17,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 02:32:17,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1707 transitions. [2023-11-12 02:32:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-12 02:32:17,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:32:17,171 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:32:17,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:32:17,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:32:17,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:32:17,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1567280013, now seen corresponding path program 1 times [2023-11-12 02:32:17,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:32:17,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391536182] [2023-11-12 02:32:17,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:32:17,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:32:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:32:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:32:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:32:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:32:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:32:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:32:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:32:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:32:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:32:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:32:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:32:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-12 02:32:18,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:32:18,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391536182] [2023-11-12 02:32:18,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391536182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:32:18,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:32:18,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 02:32:18,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042025070] [2023-11-12 02:32:18,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:32:18,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:32:18,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:32:18,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:32:18,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:32:18,889 INFO L87 Difference]: Start difference. First operand 1162 states and 1707 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 02:32:28,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:32:29,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []