./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6037d9c0da39b47219c2a722405991c574e168b5c260e77abe20cfd9849699bc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:39:54,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:39:54,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:39:54,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:39:54,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:39:54,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:39:54,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:39:54,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:39:54,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:39:54,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:39:54,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:39:54,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:39:54,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:39:54,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:39:54,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:39:54,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:39:54,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:39:54,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:39:54,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:39:54,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:39:54,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:39:54,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:39:54,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:39:54,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:39:54,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:39:54,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:39:54,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:39:54,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:39:54,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:39:54,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:39:54,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:39:54,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:39:54,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:39:54,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:39:54,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:39:54,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:39:54,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:39:54,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:39:54,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:39:54,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:39:54,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:39:54,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:39:54,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:39:54,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:39:54,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:39:54,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:39:54,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:39:54,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:39:54,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:39:54,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:39:54,300 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:39:54,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:39:54,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:39:54,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:39:54,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:39:54,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:39:54,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:39:54,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:39:54,302 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:39:54,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:39:54,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:39:54,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:39:54,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:39:54,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:39:54,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:39:54,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:39:54,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:39:54,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:39:54,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:39:54,305 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:39:54,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:39:54,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:39:54,306 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_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6037d9c0da39b47219c2a722405991c574e168b5c260e77abe20cfd9849699bc [2022-10-17 10:39:54,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:39:54,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:39:54,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:39:54,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:39:54,575 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:39:54,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2022-10-17 10:39:54,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/data/aded9a871/e024a7e1e69647579e660a220eeb3d7d/FLAGca5eb22dc [2022-10-17 10:39:55,611 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:39:55,612 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2022-10-17 10:39:55,659 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/data/aded9a871/e024a7e1e69647579e660a220eeb3d7d/FLAGca5eb22dc [2022-10-17 10:39:55,988 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/data/aded9a871/e024a7e1e69647579e660a220eeb3d7d [2022-10-17 10:39:55,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:39:55,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:39:55,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:39:55,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:39:55,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:39:55,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:39:55" (1/1) ... [2022-10-17 10:39:55,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46909add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:55, skipping insertion in model container [2022-10-17 10:39:55,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:39:55" (1/1) ... [2022-10-17 10:39:56,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:39:56,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:39:57,358 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_3846ec2d-a14a-4b18-8bd9-c636f039c166/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2022-10-17 10:39:58,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:39:58,161 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:39:58,319 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_3846ec2d-a14a-4b18-8bd9-c636f039c166/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2022-10-17 10:39:58,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:39:58,601 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:39:58,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58 WrapperNode [2022-10-17 10:39:58,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:39:58,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:39:58,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:39:58,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:39:58,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:58,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:58,858 INFO L138 Inliner]: procedures = 220, calls = 1799, calls flagged for inlining = 81, calls inlined = 72, statements flattened = 3230 [2022-10-17 10:39:58,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:39:58,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:39:58,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:39:58,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:39:58,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:58,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:58,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:58,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:59,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:59,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:59,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:59,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:59,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:39:59,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:39:59,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:39:59,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:39:59,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (1/1) ... [2022-10-17 10:39:59,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:39:59,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:39:59,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:39:59,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3846ec2d-a14a-4b18-8bd9-c636f039c166/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:39:59,226 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2022-10-17 10:39:59,227 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2022-10-17 10:39:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_xmit [2022-10-17 10:39:59,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_xmit [2022-10-17 10:39:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:39:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:39:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:39:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:39:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2022-10-17 10:39:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2022-10-17 10:39:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_start_tx [2022-10-17 10:39:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_start_tx [2022-10-17 10:39:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:39:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:39:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-10-17 10:39:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-10-17 10:39:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2022-10-17 10:39:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2022-10-17 10:39:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-17 10:39:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-17 10:39:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-17 10:39:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-17 10:39:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-10-17 10:39:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-10-17 10:39:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:39:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:39:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-10-17 10:39:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-10-17 10:39:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 10:39:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 10:39:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2022-10-17 10:39:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2022-10-17 10:39:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:39:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:39:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-17 10:39:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-17 10:39:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:39:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:39:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_fill_info [2022-10-17 10:39:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_fill_info [2022-10-17 10:39:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:39:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 10:39:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 10:39:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc [2022-10-17 10:39:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc [2022-10-17 10:39:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_update_aggregation_stats [2022-10-17 10:39:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_update_aggregation_stats [2022-10-17 10:39:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:39:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-17 10:39:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-17 10:39:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:39:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_frm [2022-10-17 10:39:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_frm [2022-10-17 10:39:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:39:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:39:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:39:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_dequeue [2022-10-17 10:39:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_dequeue [2022-10-17 10:39:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:39:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:39:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-17 10:39:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-10-17 10:39:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-17 10:39:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-17 10:39:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc_len [2022-10-17 10:39:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc_len [2022-10-17 10:39:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:39:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:39:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:39:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_queue_len [2022-10-17 10:39:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_queue_len [2022-10-17 10:39:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:39:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:39:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:39:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-10-17 10:39:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-10-17 10:39:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:39:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_21 [2022-10-17 10:39:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_21 [2022-10-17 10:39:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-10-17 10:39:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-10-17 10:39:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:39:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:39:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-17 10:39:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-17 10:39:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 10:39:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 10:39:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_get_size [2022-10-17 10:39:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_get_size [2022-10-17 10:39:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_netlink_parms [2022-10-17 10:39:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_netlink_parms [2022-10-17 10:39:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-10-17 10:39:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-10-17 10:39:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:39:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:39:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:39:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:39:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:39:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:39:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-10-17 10:39:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-10-17 10:39:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 10:39:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 10:39:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2022-10-17 10:39:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2022-10-17 10:39:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:39:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-17 10:39:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-17 10:39:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_changelink [2022-10-17 10:39:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_changelink [2022-10-17 10:39:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:39:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:39:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-17 10:39:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-17 10:39:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:39:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:39:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-10-17 10:39:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-10-17 10:39:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_open [2022-10-17 10:39:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_open [2022-10-17 10:39:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_done [2022-10-17 10:39:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_done [2022-10-17 10:39:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-17 10:39:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-17 10:39:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-10-17 10:39:59,258 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-10-17 10:39:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-17 10:39:59,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-10-17 10:39:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_can_send_aggregate [2022-10-17 10:39:59,264 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_can_send_aggregate [2022-10-17 10:39:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:39:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:39:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-17 10:39:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-17 10:39:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:39:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:39:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-17 10:39:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-17 10:39:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-17 10:39:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-17 10:39:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 10:39:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 10:39:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_newlink [2022-10-17 10:39:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_newlink [2022-10-17 10:39:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-10-17 10:39:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-10-17 10:39:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:39:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-10-17 10:39:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-10-17 10:39:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_close [2022-10-17 10:39:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_close [2022-10-17 10:39:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-10-17 10:39:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-10-17 10:39:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_abort_tx [2022-10-17 10:39:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_abort_tx [2022-10-17 10:39:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-17 10:39:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-17 10:39:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:39:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:39:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-17 10:39:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-17 10:39:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-10-17 10:39:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-10-17 10:39:59,923 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:39:59,927 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:40:00,523 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:40:03,846 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:40:03,863 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:40:03,864 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 10:40:03,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:03 BoogieIcfgContainer [2022-10-17 10:40:03,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:40:03,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:40:03,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:40:03,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:40:03,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:39:55" (1/3) ... [2022-10-17 10:40:03,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebc48df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:40:03, skipping insertion in model container [2022-10-17 10:40:03,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:39:58" (2/3) ... [2022-10-17 10:40:03,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebc48df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:40:03, skipping insertion in model container [2022-10-17 10:40:03,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:03" (3/3) ... [2022-10-17 10:40:03,877 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2022-10-17 10:40:03,895 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:40:03,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:40:03,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:40:03,978 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;@143a48de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:40:03,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:40:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 1087 states, 758 states have (on average 1.3364116094986807) internal successors, (1013), 777 states have internal predecessors, (1013), 255 states have call successors, (255), 73 states have call predecessors, (255), 72 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2022-10-17 10:40:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 10:40:04,003 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:04,004 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:04,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:40:04,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash 201705276, now seen corresponding path program 1 times [2022-10-17 10:40:04,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:04,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846812269] [2022-10-17 10:40:04,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:04,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:40:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:04,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:40:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:04,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:40:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:40:04,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:04,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846812269] [2022-10-17 10:40:04,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846812269] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:04,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:04,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:40:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814812310] [2022-10-17 10:40:04,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:04,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:40:04,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:04,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:40:04,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:40:05,003 INFO L87 Difference]: Start difference. First operand has 1087 states, 758 states have (on average 1.3364116094986807) internal successors, (1013), 777 states have internal predecessors, (1013), 255 states have call successors, (255), 73 states have call predecessors, (255), 72 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:40:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:11,297 INFO L93 Difference]: Finished difference Result 3554 states and 5253 transitions. [2022-10-17 10:40:11,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:40:11,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-10-17 10:40:11,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:11,348 INFO L225 Difference]: With dead ends: 3554 [2022-10-17 10:40:11,348 INFO L226 Difference]: Without dead ends: 2437 [2022-10-17 10:40:11,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:40:11,376 INFO L413 NwaCegarLoop]: 1831 mSDtfsCounter, 2089 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 2623 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 6507 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 2623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:11,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 6507 Invalid, 3362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [739 Valid, 2623 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-10-17 10:40:11,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2022-10-17 10:40:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2233. [2022-10-17 10:40:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 1564 states have (on average 1.3241687979539642) internal successors, (2071), 1597 states have internal predecessors, (2071), 518 states have call successors, (518), 141 states have call predecessors, (518), 150 states have return successors, (587), 523 states have call predecessors, (587), 517 states have call successors, (587) [2022-10-17 10:40:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 3176 transitions. [2022-10-17 10:40:11,661 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 3176 transitions. Word has length 39 [2022-10-17 10:40:11,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:11,662 INFO L495 AbstractCegarLoop]: Abstraction has 2233 states and 3176 transitions. [2022-10-17 10:40:11,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:40:11,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 3176 transitions. [2022-10-17 10:40:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-17 10:40:11,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:11,683 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:11,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:40:11,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:40:11,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:11,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2097784552, now seen corresponding path program 1 times [2022-10-17 10:40:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:11,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134393819] [2022-10-17 10:40:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:40:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:40:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:40:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:40:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:40:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:13,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:40:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:40:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:40:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:13,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-17 10:40:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:13,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:40:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:14,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:40:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:14,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:40:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-17 10:40:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 10:40:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:40:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 10:40:14,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:14,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134393819] [2022-10-17 10:40:14,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134393819] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:14,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:14,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-17 10:40:14,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930443962] [2022-10-17 10:40:14,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:14,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-17 10:40:14,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:14,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 10:40:14,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:40:14,391 INFO L87 Difference]: Start difference. First operand 2233 states and 3176 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15)