./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --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 9a594b783fcfe5d510684b509ba23f3f5c69273a3da508f465e3e0725cd18344 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:38:21,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:38:21,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:38:21,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:38:21,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:38:21,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:38:21,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:38:21,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:38:21,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:38:21,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:38:21,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:38:21,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:38:21,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:38:21,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:38:21,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:38:21,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:38:21,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:38:21,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:38:21,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:38:21,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:38:21,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:38:21,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:38:21,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:38:21,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:38:21,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:38:21,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:38:21,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:38:21,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:38:21,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:38:21,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:38:21,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:38:21,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:38:21,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:38:21,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:38:21,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:38:21,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:38:21,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:38:21,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:38:21,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:38:21,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:38:21,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:38:21,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:38:21,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:38:21,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:38:21,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:38:21,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:38:21,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:38:21,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:38:21,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:38:21,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:38:21,186 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:38:21,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:38:21,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:38:21,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:38:21,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:38:21,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:38:21,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:38:21,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:38:21,188 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:38:21,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:38:21,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:38:21,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:38:21,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:38:21,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:21,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:38:21,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:38:21,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:38:21,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:38:21,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:38:21,192 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:38:21,192 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:38:21,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:38:21,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a594b783fcfe5d510684b509ba23f3f5c69273a3da508f465e3e0725cd18344 [2022-10-17 10:38:21,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:38:21,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:38:21,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:38:21,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:38:21,525 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:38:21,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i [2022-10-17 10:38:21,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/data/b117bd190/47ca04c31aae4cf4a4d4e5c4bbba0115/FLAGcc8c7c966 [2022-10-17 10:38:22,500 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:38:22,501 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i [2022-10-17 10:38:22,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/data/b117bd190/47ca04c31aae4cf4a4d4e5c4bbba0115/FLAGcc8c7c966 [2022-10-17 10:38:22,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/data/b117bd190/47ca04c31aae4cf4a4d4e5c4bbba0115 [2022-10-17 10:38:22,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:38:22,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:38:23,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:23,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:38:23,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:38:23,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:22" (1/1) ... [2022-10-17 10:38:23,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e981278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:23, skipping insertion in model container [2022-10-17 10:38:23,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:22" (1/1) ... [2022-10-17 10:38:23,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:38:23,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:38:23,928 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6679] [2022-10-17 10:38:23,929 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6680-6681] [2022-10-17 10:38:24,050 WARN L230 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_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i[194974,194987] [2022-10-17 10:38:24,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:24,736 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:38:24,922 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6679] [2022-10-17 10:38:24,922 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6680-6681] [2022-10-17 10:38:24,935 WARN L230 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_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i[194974,194987] [2022-10-17 10:38:25,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:25,297 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:38:25,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25 WrapperNode [2022-10-17 10:38:25,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:25,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:25,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:38:25,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:38:25,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,544 INFO L138 Inliner]: procedures = 128, calls = 1081, calls flagged for inlining = 38, calls inlined = 34, statements flattened = 1873 [2022-10-17 10:38:25,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:25,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:38:25,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:38:25,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:38:25,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,663 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:38:25,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:38:25,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:38:25,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:38:25,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (1/1) ... [2022-10-17 10:38:25,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:25,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:25,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:38:25,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e87234a1-ea7c-4e0b-bd62-7cb7eecbe8f7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:38:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_unc_blocks [2022-10-17 10:38:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_unc_blocks [2022-10-17 10:38:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_set_frontend [2022-10-17 10:38:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_set_frontend [2022-10-17 10:38:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:38:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:38:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:38:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:38:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:38:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:38:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_set_voltage [2022-10-17 10:38:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_set_voltage [2022-10-17 10:38:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_usb_in_op [2022-10-17 10:38:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_usb_in_op [2022-10-17 10:38:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:38:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:38:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 10:38:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 10:38:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_update_status [2022-10-17 10:38:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_update_status [2022-10-17 10:38:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_signal_strength [2022-10-17 10:38:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_signal_strength [2022-10-17 10:38:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:38:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:38:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 10:38:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 10:38:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-10-17 10:38:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-10-17 10:38:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:38:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:38:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:38:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:38:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:38:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_status [2022-10-17 10:38:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_status [2022-10-17 10:38:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:38:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:38:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:38:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:38:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_get_tune_settings [2022-10-17 10:38:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_get_tune_settings [2022-10-17 10:38:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:38:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:38:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_set_tone [2022-10-17 10:38:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_set_tone [2022-10-17 10:38:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:38:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_load_bcm4500fw [2022-10-17 10:38:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_load_bcm4500fw [2022-10-17 10:38:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:38:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:38:25,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:38:25,818 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_enable_high_lnb_voltage [2022-10-17 10:38:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_enable_high_lnb_voltage [2022-10-17 10:38:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:38:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 10:38:25,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 10:38:25,821 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_read_ber [2022-10-17 10:38:25,821 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_read_ber [2022-10-17 10:38:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_usb_out_op [2022-10-17 10:38:25,822 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_usb_out_op [2022-10-17 10:38:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:38:25,823 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_send_legacy_dish_cmd [2022-10-17 10:38:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_send_legacy_dish_cmd [2022-10-17 10:38:25,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:38:25,823 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_send_diseqc_burst [2022-10-17 10:38:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_send_diseqc_burst [2022-10-17 10:38:25,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:38:25,824 INFO L130 BoogieDeclarations]: Found specification of procedure gp8psk_fe_send_diseqc_msg [2022-10-17 10:38:25,824 INFO L138 BoogieDeclarations]: Found implementation of procedure gp8psk_fe_send_diseqc_msg [2022-10-17 10:38:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:38:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:38:25,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:38:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:38:25,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:38:26,543 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:38:26,547 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:38:27,167 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:38:44,126 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:38:44,148 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:38:44,148 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:38:44,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:44 BoogieIcfgContainer [2022-10-17 10:38:44,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:38:44,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:38:44,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:38:44,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:38:44,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:38:22" (1/3) ... [2022-10-17 10:38:44,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d58c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:44, skipping insertion in model container [2022-10-17 10:38:44,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:25" (2/3) ... [2022-10-17 10:38:44,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d58c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:44, skipping insertion in model container [2022-10-17 10:38:44,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:44" (3/3) ... [2022-10-17 10:38:44,165 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-gp8psk.ko-entry_point.cil.out.i [2022-10-17 10:38:44,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:38:44,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:38:44,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:38:44,288 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=LoopsAndPotentialCycles, 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;@75d27e45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:38:44,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:38:44,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 507 states, 386 states have (on average 1.4352331606217616) internal successors, (554), 394 states have internal predecessors, (554), 91 states have call successors, (91), 29 states have call predecessors, (91), 28 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-10-17 10:38:44,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-17 10:38:44,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:44,319 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-17 10:38:44,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1565213374, now seen corresponding path program 1 times [2022-10-17 10:38:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:44,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426707635] [2022-10-17 10:38:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:44,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:38:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:38:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:38:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:38:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-17 10:38:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,531 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-17 10:38:45,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:45,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426707635] [2022-10-17 10:38:45,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426707635] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:45,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:45,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:38:45,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606387236] [2022-10-17 10:38:45,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:45,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:38:45,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:45,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:38:45,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:38:45,574 INFO L87 Difference]: Start difference. First operand has 507 states, 386 states have (on average 1.4352331606217616) internal successors, (554), 394 states have internal predecessors, (554), 91 states have call successors, (91), 29 states have call predecessors, (91), 28 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-17 10:38:47,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:38:50,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:50,090 INFO L93 Difference]: Finished difference Result 1472 states and 2177 transitions. [2022-10-17 10:38:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:38:50,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2022-10-17 10:38:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:50,130 INFO L225 Difference]: With dead ends: 1472 [2022-10-17 10:38:50,130 INFO L226 Difference]: Without dead ends: 941 [2022-10-17 10:38:50,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:50,144 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 730 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 209 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:50,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1771 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-10-17 10:38:50,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-10-17 10:38:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 916. [2022-10-17 10:38:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 705 states have (on average 1.4141843971631205) internal successors, (997), 707 states have internal predecessors, (997), 156 states have call successors, (156), 55 states have call predecessors, (156), 54 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2022-10-17 10:38:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1308 transitions. [2022-10-17 10:38:50,319 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1308 transitions. Word has length 62 [2022-10-17 10:38:50,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:50,320 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1308 transitions. [2022-10-17 10:38:50,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-17 10:38:50,320 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1308 transitions. [2022-10-17 10:38:50,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-17 10:38:50,329 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:50,329 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-17 10:38:50,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:38:50,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:50,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash -536713637, now seen corresponding path program 1 times [2022-10-17 10:38:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:50,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902619062] [2022-10-17 10:38:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:38:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:38:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:38:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-17 10:38:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:38:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:38:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-17 10:38:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:38:51,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:51,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902619062] [2022-10-17 10:38:51,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902619062] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:51,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:51,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:38:51,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194156752] [2022-10-17 10:38:51,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:51,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:38:51,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:51,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:38:51,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:51,440 INFO L87 Difference]: Start difference. First operand 916 states and 1308 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-17 10:38:53,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:38:55,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:38:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:57,613 INFO L93 Difference]: Finished difference Result 1847 states and 2744 transitions. [2022-10-17 10:38:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:38:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2022-10-17 10:38:57,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:57,632 INFO L225 Difference]: With dead ends: 1847 [2022-10-17 10:38:57,632 INFO L226 Difference]: Without dead ends: 938 [2022-10-17 10:38:57,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:38:57,641 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 688 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 154 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:57,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1369 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 499 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-10-17 10:38:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-10-17 10:38:57,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 916. [2022-10-17 10:38:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 705 states have (on average 1.371631205673759) internal successors, (967), 707 states have internal predecessors, (967), 156 states have call successors, (156), 55 states have call predecessors, (156), 54 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2022-10-17 10:38:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1278 transitions. [2022-10-17 10:38:57,718 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1278 transitions. Word has length 88 [2022-10-17 10:38:57,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:57,719 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1278 transitions. [2022-10-17 10:38:57,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-17 10:38:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1278 transitions. [2022-10-17 10:38:57,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-17 10:38:57,723 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:57,724 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-17 10:38:57,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:38:57,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:57,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:57,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1048241563, now seen corresponding path program 1 times [2022-10-17 10:38:57,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:57,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786375165] [2022-10-17 10:38:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:57,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:38:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:38:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:38:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-17 10:38:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:38:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:38:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-17 10:38:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:38:58,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:58,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786375165] [2022-10-17 10:38:58,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786375165] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:58,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:58,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:38:58,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638100604] [2022-10-17 10:38:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:58,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:38:58,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:58,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:38:58,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:38:58,518 INFO L87 Difference]: Start difference. First operand 916 states and 1278 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)