./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--scsi--dpt_i2o.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc --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 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- 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-5e519f3 [2022-11-02 20:18:26,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:18:26,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:18:26,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:18:26,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:18:26,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:18:26,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:18:26,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:18:26,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:18:26,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:18:26,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:18:26,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:18:26,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:18:26,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:18:26,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:18:26,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:18:26,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:18:26,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:18:26,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:18:26,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:18:26,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:18:26,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:18:26,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:18:26,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:18:26,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:18:26,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:18:26,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:18:26,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:18:26,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:18:26,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:18:26,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:18:26,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:18:26,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:18:26,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:18:26,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:18:26,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:18:26,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:18:26,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:18:26,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:18:26,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:18:26,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:18:26,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:18:26,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:18:26,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:18:26,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:18:26,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:18:26,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:18:26,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:18:26,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:18:26,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:18:26,322 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:18:26,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:18:26,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:18:26,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:18:26,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:18:26,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:18:26,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:18:26,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:18:26,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:18:26,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:18:26,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:18:26,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:18:26,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:18:26,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:18:26,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:18:26,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:18:26,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:18:26,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:18:26,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:18:26,329 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:18:26,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:18:26,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:18:26,331 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_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2022-11-02 20:18:26,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:18:26,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:18:26,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:18:26,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:18:26,705 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:18:26,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-11-02 20:18:26,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/data/9be7aee92/14ac0168576a48f8a030fd7264c6aa37/FLAG5c42c36ed [2022-11-02 20:18:27,755 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:18:27,756 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-11-02 20:18:27,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/data/9be7aee92/14ac0168576a48f8a030fd7264c6aa37/FLAG5c42c36ed [2022-11-02 20:18:28,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/data/9be7aee92/14ac0168576a48f8a030fd7264c6aa37 [2022-11-02 20:18:28,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:18:28,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:18:28,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:18:28,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:18:28,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:18:28,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:18:28" (1/1) ... [2022-11-02 20:18:28,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38675cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:28, skipping insertion in model container [2022-11-02 20:18:28,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:18:28" (1/1) ... [2022-11-02 20:18:28,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:18:28,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:18:28,928 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-11-02 20:18:28,928 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-11-02 20:18:29,327 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_3eef9116-d06c-4e60-9e27-5047c416a919/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-11-02 20:18:30,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:18:30,716 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:18:30,817 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-11-02 20:18:30,818 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-11-02 20:18:30,827 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_3eef9116-d06c-4e60-9e27-5047c416a919/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-11-02 20:18:31,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:18:31,453 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:18:31,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31 WrapperNode [2022-11-02 20:18:31,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:18:31,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:18:31,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:18:31,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:18:31,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:31,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:31,840 INFO L138 Inliner]: procedures = 250, calls = 2339, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6369 [2022-11-02 20:18:31,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:18:31,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:18:31,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:18:31,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:18:31,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:31,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:31,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:31,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:32,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:32,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:32,124 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:32,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:32,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:18:32,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:18:32,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:18:32,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:18:32,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (1/1) ... [2022-11-02 20:18:32,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:18:32,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:18:32,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:18:32,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eef9116-d06c-4e60-9e27-5047c416a919/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:18:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2022-11-02 20:18:32,264 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2022-11-02 20:18:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-02 20:18:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:18:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:18:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 20:18:32,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 20:18:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:18:32,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:18:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2022-11-02 20:18:32,265 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2022-11-02 20:18:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-02 20:18:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-02 20:18:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-02 20:18:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-02 20:18:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-02 20:18:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-02 20:18:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 20:18:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 20:18:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:18:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:18:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2022-11-02 20:18:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2022-11-02 20:18:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2022-11-02 20:18:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2022-11-02 20:18:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-11-02 20:18:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-11-02 20:18:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2022-11-02 20:18:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2022-11-02 20:18:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2022-11-02 20:18:32,269 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2022-11-02 20:18:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-11-02 20:18:32,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-11-02 20:18:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:18:32,269 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:18:32,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:18:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:18:32,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2022-11-02 20:18:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2022-11-02 20:18:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-02 20:18:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-02 20:18:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:18:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:18:32,272 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2022-11-02 20:18:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2022-11-02 20:18:32,272 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2022-11-02 20:18:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2022-11-02 20:18:32,272 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:18:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:18:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:18:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:18:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2022-11-02 20:18:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2022-11-02 20:18:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:18:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:18:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-02 20:18:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-02 20:18:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-02 20:18:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-02 20:18:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:18:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:18:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:18:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-02 20:18:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-02 20:18:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:18:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-02 20:18:32,279 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-02 20:18:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2022-11-02 20:18:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2022-11-02 20:18:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:18:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:18:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:18:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:18:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-02 20:18:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-02 20:18:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2022-11-02 20:18:32,281 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2022-11-02 20:18:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:18:32,282 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:18:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2022-11-02 20:18:32,282 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2022-11-02 20:18:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:18:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 20:18:32,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 20:18:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-02 20:18:32,283 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-02 20:18:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2022-11-02 20:18:32,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2022-11-02 20:18:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:18:32,284 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:18:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:18:32,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:18:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2022-11-02 20:18:32,286 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2022-11-02 20:18:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:18:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2022-11-02 20:18:32,286 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2022-11-02 20:18:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-02 20:18:32,287 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-02 20:18:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:18:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2022-11-02 20:18:32,287 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2022-11-02 20:18:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2022-11-02 20:18:32,287 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2022-11-02 20:18:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:18:32,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:18:32,288 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2022-11-02 20:18:32,288 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2022-11-02 20:18:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:18:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:18:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-02 20:18:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-02 20:18:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:18:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:18:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:18:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-02 20:18:32,294 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-02 20:18:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2022-11-02 20:18:32,294 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2022-11-02 20:18:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-02 20:18:32,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-02 20:18:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:18:32,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:18:32,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:18:32,303 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2022-11-02 20:18:32,304 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2022-11-02 20:18:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2022-11-02 20:18:32,304 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2022-11-02 20:18:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-02 20:18:32,304 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-02 20:18:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:18:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2022-11-02 20:18:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2022-11-02 20:18:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:18:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 20:18:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 20:18:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 20:18:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:18:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:18:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-02 20:18:32,306 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-02 20:18:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-02 20:18:32,306 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-02 20:18:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2022-11-02 20:18:32,306 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2022-11-02 20:18:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-02 20:18:32,307 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-02 20:18:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2022-11-02 20:18:32,307 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2022-11-02 20:18:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2022-11-02 20:18:32,307 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2022-11-02 20:18:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-02 20:18:32,307 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-02 20:18:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-02 20:18:32,308 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-02 20:18:32,308 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2022-11-02 20:18:32,308 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2022-11-02 20:18:32,308 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-02 20:18:32,308 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-02 20:18:32,308 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-02 20:18:32,308 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-02 20:18:32,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:18:32,309 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2022-11-02 20:18:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2022-11-02 20:18:32,309 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-02 20:18:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-02 20:18:32,309 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-02 20:18:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-02 20:18:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:18:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:18:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 20:18:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 20:18:33,356 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:18:33,360 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:18:34,373 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:18:48,910 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:18:48,931 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:18:48,932 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:18:48,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:18:48 BoogieIcfgContainer [2022-11-02 20:18:48,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:18:48,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:18:48,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:18:48,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:18:48,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:18:28" (1/3) ... [2022-11-02 20:18:48,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555817fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:18:48, skipping insertion in model container [2022-11-02 20:18:48,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:31" (2/3) ... [2022-11-02 20:18:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555817fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:18:48, skipping insertion in model container [2022-11-02 20:18:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:18:48" (3/3) ... [2022-11-02 20:18:48,949 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-11-02 20:18:48,970 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:18:48,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:18:49,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:18:49,071 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;@741f850f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:18:49,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:18:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 1998 states, 1483 states have (on average 1.3917734322319621) internal successors, (2064), 1507 states have internal predecessors, (2064), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) [2022-11-02 20:18:49,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 20:18:49,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:18:49,119 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-02 20:18:49,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:18:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:18:49,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1716966273, now seen corresponding path program 1 times [2022-11-02 20:18:49,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:18:49,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508906959] [2022-11-02 20:18:49,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:18:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:18:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:18:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:18:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:18:50,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:18:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:18:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:18:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:18:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 20:18:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:18:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-02 20:18:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:18:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-02 20:18:50,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:18:50,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508906959] [2022-11-02 20:18:50,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508906959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:18:50,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:18:50,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:18:50,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266977344] [2022-11-02 20:18:50,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:18:50,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:18:50,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:18:50,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:18:50,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:18:50,252 INFO L87 Difference]: Start difference. First operand has 1998 states, 1483 states have (on average 1.3917734322319621) internal successors, (2064), 1507 states have internal predecessors, (2064), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:18:55,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:18:59,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:01,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:08,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:09,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:14,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:16,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:18,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:23,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:26,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:26,698 INFO L93 Difference]: Finished difference Result 6659 states and 10182 transitions. [2022-11-02 20:19:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:19:26,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-11-02 20:19:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:26,782 INFO L225 Difference]: With dead ends: 6659 [2022-11-02 20:19:26,782 INFO L226 Difference]: Without dead ends: 4615 [2022-11-02 20:19:26,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:19:26,810 INFO L413 NwaCegarLoop]: 3234 mSDtfsCounter, 4788 mSDsluCounter, 4763 mSDsCounter, 0 mSdLazyCounter, 4258 mSolverCounterSat, 2768 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 7997 SdHoareTripleChecker+Invalid, 7033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2768 IncrementalHoareTripleChecker+Valid, 4258 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:19:26,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5147 Valid, 7997 Invalid, 7033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2768 Valid, 4258 Invalid, 7 Unknown, 0 Unchecked, 35.5s Time] [2022-11-02 20:19:26,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2022-11-02 20:19:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 3618. [2022-11-02 20:19:27,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 2687 states have (on average 1.384443617417194) internal successors, (3720), 2716 states have internal predecessors, (3720), 789 states have call successors, (789), 142 states have call predecessors, (789), 141 states have return successors, (788), 786 states have call predecessors, (788), 788 states have call successors, (788) [2022-11-02 20:19:27,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 5297 transitions. [2022-11-02 20:19:27,146 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 5297 transitions. Word has length 58 [2022-11-02 20:19:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:27,147 INFO L495 AbstractCegarLoop]: Abstraction has 3618 states and 5297 transitions. [2022-11-02 20:19:27,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:19:27,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5297 transitions. [2022-11-02 20:19:27,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-02 20:19:27,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:27,155 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1] [2022-11-02 20:19:27,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:19:27,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:27,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 543101132, now seen corresponding path program 1 times [2022-11-02 20:19:27,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:27,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653667266] [2022-11-02 20:19:27,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:27,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:19:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:19:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:19:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 20:19:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 20:19:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:19:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:19:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-02 20:19:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-02 20:19:28,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:28,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653667266] [2022-11-02 20:19:28,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653667266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:28,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:28,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:19:28,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678211525] [2022-11-02 20:19:28,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:28,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:19:28,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:28,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:19:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:19:28,217 INFO L87 Difference]: Start difference. First operand 3618 states and 5297 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:19:33,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:40,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:42,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:46,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:19:51,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:00,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:04,927 INFO L93 Difference]: Finished difference Result 9595 states and 14912 transitions. [2022-11-02 20:20:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:20:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-11-02 20:20:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:05,003 INFO L225 Difference]: With dead ends: 9595 [2022-11-02 20:20:05,004 INFO L226 Difference]: Without dead ends: 9592 [2022-11-02 20:20:05,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:20:05,014 INFO L413 NwaCegarLoop]: 3439 mSDtfsCounter, 5638 mSDsluCounter, 6772 mSDsCounter, 0 mSdLazyCounter, 6026 mSolverCounterSat, 3056 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6050 SdHoareTripleChecker+Valid, 10211 SdHoareTripleChecker+Invalid, 9087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3056 IncrementalHoareTripleChecker+Valid, 6026 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:05,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6050 Valid, 10211 Invalid, 9087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3056 Valid, 6026 Invalid, 5 Unknown, 0 Unchecked, 35.8s Time] [2022-11-02 20:20:05,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9592 states. [2022-11-02 20:20:05,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9592 to 7428. [2022-11-02 20:20:05,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 5506 states have (on average 1.3908463494369778) internal successors, (7658), 5570 states have internal predecessors, (7658), 1627 states have call successors, (1627), 271 states have call predecessors, (1627), 294 states have return successors, (1964), 1632 states have call predecessors, (1964), 1626 states have call successors, (1964) [2022-11-02 20:20:05,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 11249 transitions. [2022-11-02 20:20:05,525 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 11249 transitions. Word has length 84 [2022-11-02 20:20:05,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:05,528 INFO L495 AbstractCegarLoop]: Abstraction has 7428 states and 11249 transitions. [2022-11-02 20:20:05,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 20:20:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 11249 transitions. [2022-11-02 20:20:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-02 20:20:05,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:05,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:20:05,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:20:05,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:05,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:05,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1033473605, now seen corresponding path program 1 times [2022-11-02 20:20:05,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:05,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056980662] [2022-11-02 20:20:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:05,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:20:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:20:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:20:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 20:20:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:20:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 20:20:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-02 20:20:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-02 20:20:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:20:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:20:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-02 20:20:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-02 20:20:05,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:05,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056980662] [2022-11-02 20:20:05,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056980662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:05,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:05,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:20:05,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484111062] [2022-11-02 20:20:05,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:05,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:20:05,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:05,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:20:05,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:20:05,981 INFO L87 Difference]: Start difference. First operand 7428 states and 11249 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:20:10,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:15,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:18,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:21,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:23,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:31,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:38,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:42,804 INFO L93 Difference]: Finished difference Result 27401 states and 42818 transitions. [2022-11-02 20:20:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:20:42,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-11-02 20:20:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:42,949 INFO L225 Difference]: With dead ends: 27401 [2022-11-02 20:20:42,950 INFO L226 Difference]: Without dead ends: 19984 [2022-11-02 20:20:43,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:20:43,013 INFO L413 NwaCegarLoop]: 3119 mSDtfsCounter, 7515 mSDsluCounter, 6037 mSDsCounter, 0 mSdLazyCounter, 6227 mSolverCounterSat, 5408 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7996 SdHoareTripleChecker+Valid, 9156 SdHoareTripleChecker+Invalid, 11641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5408 IncrementalHoareTripleChecker+Valid, 6227 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:43,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7996 Valid, 9156 Invalid, 11641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5408 Valid, 6227 Invalid, 6 Unknown, 0 Unchecked, 35.4s Time] [2022-11-02 20:20:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19984 states. [2022-11-02 20:20:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19984 to 15549. [2022-11-02 20:20:44,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15549 states, 11688 states have (on average 1.3963039014373717) internal successors, (16320), 11815 states have internal predecessors, (16320), 3282 states have call successors, (3282), 492 states have call predecessors, (3282), 578 states have return successors, (4014), 3327 states have call predecessors, (4014), 3281 states have call successors, (4014) [2022-11-02 20:20:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15549 states to 15549 states and 23616 transitions. [2022-11-02 20:20:44,272 INFO L78 Accepts]: Start accepts. Automaton has 15549 states and 23616 transitions. Word has length 103 [2022-11-02 20:20:44,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:44,273 INFO L495 AbstractCegarLoop]: Abstraction has 15549 states and 23616 transitions. [2022-11-02 20:20:44,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:20:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 15549 states and 23616 transitions. [2022-11-02 20:20:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-02 20:20:44,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:44,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:20:44,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:20:44,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1590762838, now seen corresponding path program 1 times [2022-11-02 20:20:44,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:44,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180030532] [2022-11-02 20:20:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:44,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:20:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:20:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:20:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 20:20:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:44,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:20:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:20:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:20:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 20:20:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 20:20:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:20:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-02 20:20:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-02 20:20:45,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:45,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180030532] [2022-11-02 20:20:45,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180030532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:45,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:45,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:20:45,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723139228] [2022-11-02 20:20:45,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:45,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:20:45,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:45,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:20:45,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:20:45,132 INFO L87 Difference]: Start difference. First operand 15549 states and 23616 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-02 20:20:52,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:20:59,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:21:06,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:21:20,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:21:22,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:21:31,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:21:39,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:39,974 INFO L93 Difference]: Finished difference Result 58437 states and 92917 transitions. [2022-11-02 20:21:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-02 20:21:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 116 [2022-11-02 20:21:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:40,439 INFO L225 Difference]: With dead ends: 58437 [2022-11-02 20:21:40,440 INFO L226 Difference]: Without dead ends: 42908 [2022-11-02 20:21:40,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2022-11-02 20:21:40,604 INFO L413 NwaCegarLoop]: 3023 mSDtfsCounter, 10663 mSDsluCounter, 11840 mSDsCounter, 0 mSdLazyCounter, 14293 mSolverCounterSat, 4404 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11126 SdHoareTripleChecker+Valid, 14863 SdHoareTripleChecker+Invalid, 18703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4404 IncrementalHoareTripleChecker+Valid, 14293 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:40,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11126 Valid, 14863 Invalid, 18703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4404 Valid, 14293 Invalid, 6 Unknown, 0 Unchecked, 51.2s Time] [2022-11-02 20:21:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42908 states. [2022-11-02 20:21:44,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42908 to 31016. [2022-11-02 20:21:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31016 states, 23313 states have (on average 1.3953159181572514) internal successors, (32529), 23583 states have internal predecessors, (32529), 6536 states have call successors, (6536), 977 states have call predecessors, (6536), 1166 states have return successors, (8364), 6627 states have call predecessors, (8364), 6535 states have call successors, (8364) [2022-11-02 20:21:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31016 states to 31016 states and 47429 transitions. [2022-11-02 20:21:44,505 INFO L78 Accepts]: Start accepts. Automaton has 31016 states and 47429 transitions. Word has length 116 [2022-11-02 20:21:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:44,506 INFO L495 AbstractCegarLoop]: Abstraction has 31016 states and 47429 transitions. [2022-11-02 20:21:44,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-02 20:21:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 31016 states and 47429 transitions. [2022-11-02 20:21:44,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-02 20:21:44,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:44,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:44,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:21:44,520 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:21:44,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:44,520 INFO L85 PathProgramCache]: Analyzing trace with hash -921436943, now seen corresponding path program 1 times [2022-11-02 20:21:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:44,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172871836] [2022-11-02 20:21:44,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:44,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:21:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:21:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:21:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 20:21:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:21:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:21:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:21:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:21:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-02 20:21:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:21:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-02 20:21:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-02 20:21:45,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:45,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172871836] [2022-11-02 20:21:45,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172871836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:45,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:45,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:21:45,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168635903] [2022-11-02 20:21:45,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:45,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:21:45,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:45,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:21:45,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:21:45,645 INFO L87 Difference]: Start difference. First operand 31016 states and 47429 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-02 20:21:52,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:21:59,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:22:02,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:22:03,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []