./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--usb--serial--sierra.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_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/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_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/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--usb--serial--sierra.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/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_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/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 d6a36286e10ea43dd9b822762f3f2df49a2903c1188868a0fefb608a216bfe78 --- 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 10:16:00,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:16:00,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:16:00,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:16:00,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:16:00,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:16:00,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:16:00,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:16:00,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:16:00,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:16:00,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:16:00,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:16:00,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:16:00,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:16:00,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:16:00,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:16:00,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:16:00,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:16:00,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:16:00,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:16:00,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:16:00,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:16:00,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:16:00,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:16:00,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:16:00,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:16:00,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:16:00,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:16:00,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:16:00,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:16:00,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:16:00,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:16:00,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:16:00,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:16:00,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:16:00,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:16:00,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:16:00,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:16:00,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:16:00,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:16:00,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:16:00,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:16:01,016 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:16:01,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:16:01,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:16:01,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:16:01,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:16:01,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:16:01,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:16:01,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:16:01,019 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:16:01,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:16:01,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:16:01,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:16:01,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:16:01,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:16:01,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:16:01,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:16:01,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:16:01,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:16:01,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:16:01,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:16:01,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:16:01,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:16:01,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:16:01,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:16:01,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:16:01,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:16:01,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:16:01,025 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:16:01,026 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:16:01,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:16:01,026 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_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6a36286e10ea43dd9b822762f3f2df49a2903c1188868a0fefb608a216bfe78 [2022-10-17 10:16:01,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:16:01,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:16:01,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:16:01,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:16:01,341 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:16:01,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2022-10-17 10:16:01,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/data/114c3da91/fa4700dd87064a18a8edc50fbb9679a6/FLAGd4e06ca28 [2022-10-17 10:16:02,302 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:16:02,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2022-10-17 10:16:02,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/data/114c3da91/fa4700dd87064a18a8edc50fbb9679a6/FLAGd4e06ca28 [2022-10-17 10:16:02,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/data/114c3da91/fa4700dd87064a18a8edc50fbb9679a6 [2022-10-17 10:16:02,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:16:02,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:16:02,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:02,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:16:02,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:16:02,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:02" (1/1) ... [2022-10-17 10:16:02,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5ab498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:02, skipping insertion in model container [2022-10-17 10:16:02,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:02" (1/1) ... [2022-10-17 10:16:02,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:16:02,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:16:03,489 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3846] [2022-10-17 10:16:03,490 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3847-3848] [2022-10-17 10:16:03,761 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_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i[114996,115009] [2022-10-17 10:16:04,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:04,625 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:16:04,790 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3846] [2022-10-17 10:16:04,791 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3847-3848] [2022-10-17 10:16:04,811 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_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i[114996,115009] [2022-10-17 10:16:05,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:05,249 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:16:05,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05 WrapperNode [2022-10-17 10:16:05,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:05,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:05,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:16:05,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:16:05,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,558 INFO L138 Inliner]: procedures = 157, calls = 2002, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 3402 [2022-10-17 10:16:05,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:05,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:16:05,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:16:05,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:16:05,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:05,994 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:06,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:06,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:16:06,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:16:06,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:16:06,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:16:06,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (1/1) ... [2022-10-17 10:16:06,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:16:06,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:16:06,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:16:06,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c89eb1e-2c51-40dc-abf6-2fda5d720de3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:16:06,153 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:16:06,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:16:06,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:16:06,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-17 10:16:06,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-17 10:16:06,155 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmget [2022-10-17 10:16:06,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmget [2022-10-17 10:16:06,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-10-17 10:16:06,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-10-17 10:16:06,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:16:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:16:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:16:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:16:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-10-17 10:16:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-10-17 10:16:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:16:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_interface [2022-10-17 10:16:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_interface [2022-10-17 10:16:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2022-10-17 10:16:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2022-10-17 10:16:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_resume [2022-10-17 10:16:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_resume [2022-10-17 10:16:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 10:16:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 10:16:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 10:16:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 10:16:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:16:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:16:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_close [2022-10-17 10:16:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_close [2022-10-17 10:16:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 10:16:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 10:16:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 10:16:06,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 10:16:06,160 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write [2022-10-17 10:16:06,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write [2022-10-17 10:16:06,160 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_rx_urbs [2022-10-17 10:16:06,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_rx_urbs [2022-10-17 10:16:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_probe [2022-10-17 10:16:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_probe [2022-10-17 10:16:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_send_setup [2022-10-17 10:16:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_send_setup [2022-10-17 10:16:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-10-17 10:16:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-10-17 10:16:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:16:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:16:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-10-17 10:16:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-10-17 10:16:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2022-10-17 10:16:06,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2022-10-17 10:16:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:16:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-17 10:16:06,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-17 10:16:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:16:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:16:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 10:16:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 10:16:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:16:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:16:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:16:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:16:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-10-17 10:16:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-10-17 10:16:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:16:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:16:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2022-10-17 10:16:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2022-10-17 10:16:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:16:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-10-17 10:16:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-10-17 10:16:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:16:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:16:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:16:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:16:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:16:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_dtr_rts [2022-10-17 10:16:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_dtr_rts [2022-10-17 10:16:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-17 10:16:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-17 10:16:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:16:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 10:16:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 10:16:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_chars_in_buffer [2022-10-17 10:16:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_chars_in_buffer [2022-10-17 10:16:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-17 10:16:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-17 10:16:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 10:16:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 10:16:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:16:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:16:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-10-17 10:16:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-10-17 10:16:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write_room [2022-10-17 10:16:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write_room [2022-10-17 10:16:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:16:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:16:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_instat_callback [2022-10-17 10:16:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_instat_callback [2022-10-17 10:16:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_stop_rx_urbs [2022-10-17 10:16:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_stop_rx_urbs [2022-10-17 10:16:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:16:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:16:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:16:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:16:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_remove [2022-10-17 10:16:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_remove [2022-10-17 10:16:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 10:16:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 10:16:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_num_ports [2022-10-17 10:16:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_num_ports [2022-10-17 10:16:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-10-17 10:16:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-10-17 10:16:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmset [2022-10-17 10:16:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmset [2022-10-17 10:16:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release_urb [2022-10-17 10:16:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release_urb [2022-10-17 10:16:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:16:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:16:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:16:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_open [2022-10-17 10:16:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_open [2022-10-17 10:16:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2022-10-17 10:16:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2022-10-17 10:16:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2022-10-17 10:16:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2022-10-17 10:16:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-17 10:16:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-17 10:16:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_suspend [2022-10-17 10:16:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_suspend [2022-10-17 10:16:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:16:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:16:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:16:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:16:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:16:06,870 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:16:06,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:16:16,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:16:21,299 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:16:21,318 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:16:21,318 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:16:21,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:21 BoogieIcfgContainer [2022-10-17 10:16:21,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:16:21,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:16:21,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:16:21,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:16:21,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:16:02" (1/3) ... [2022-10-17 10:16:21,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af77a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:21, skipping insertion in model container [2022-10-17 10:16:21,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:05" (2/3) ... [2022-10-17 10:16:21,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af77a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:21, skipping insertion in model container [2022-10-17 10:16:21,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:21" (3/3) ... [2022-10-17 10:16:21,334 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2022-10-17 10:16:21,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:16:21,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:16:21,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:16:21,452 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;@4cefbe01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:16:21,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:16:21,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 952 states, 655 states have (on average 1.3374045801526717) internal successors, (876), 668 states have internal predecessors, (876), 237 states have call successors, (237), 59 states have call predecessors, (237), 58 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2022-10-17 10:16:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 10:16:21,496 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:21,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:21,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:21,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1186069590, now seen corresponding path program 1 times [2022-10-17 10:16:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:21,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352508172] [2022-10-17 10:16:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:21,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:22,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:16:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:22,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:16:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:22,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:16:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:22,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-17 10:16:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:22,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:16:22,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:22,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352508172] [2022-10-17 10:16:22,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352508172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:22,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:22,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:16:22,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487984494] [2022-10-17 10:16:22,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:22,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:16:22,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:22,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:16:22,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:16:22,980 INFO L87 Difference]: Start difference. First operand has 952 states, 655 states have (on average 1.3374045801526717) internal successors, (876), 668 states have internal predecessors, (876), 237 states have call successors, (237), 59 states have call predecessors, (237), 58 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-17 10:16:29,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:29,317 INFO L93 Difference]: Finished difference Result 2058 states and 3008 transitions. [2022-10-17 10:16:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:16:29,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2022-10-17 10:16:29,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:16:29,349 INFO L225 Difference]: With dead ends: 2058 [2022-10-17 10:16:29,349 INFO L226 Difference]: Without dead ends: 1088 [2022-10-17 10:16:29,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:16:29,366 INFO L413 NwaCegarLoop]: 1221 mSDtfsCounter, 660 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:16:29,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 2979 Invalid, 2088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [626 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-10-17 10:16:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-10-17 10:16:29,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 971. [2022-10-17 10:16:29,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 675 states have (on average 1.3244444444444445) internal successors, (894), 683 states have internal predecessors, (894), 235 states have call successors, (235), 61 states have call predecessors, (235), 60 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2022-10-17 10:16:29,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1363 transitions. [2022-10-17 10:16:29,560 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1363 transitions. Word has length 43 [2022-10-17 10:16:29,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:16:29,561 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1363 transitions. [2022-10-17 10:16:29,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-17 10:16:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1363 transitions. [2022-10-17 10:16:29,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-17 10:16:29,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:29,576 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] [2022-10-17 10:16:29,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:16:29,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:29,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:29,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1870826371, now seen corresponding path program 1 times [2022-10-17 10:16:29,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:29,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596455085] [2022-10-17 10:16:29,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:16:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:16:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:16:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-17 10:16:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:16:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:16:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:16:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 10:16:30,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:30,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596455085] [2022-10-17 10:16:30,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596455085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:30,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:30,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:16:30,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453701128] [2022-10-17 10:16:30,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:30,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:16:30,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:30,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:16:30,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:16:30,256 INFO L87 Difference]: Start difference. First operand 971 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)