./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer --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 c445e7d136bb1d3b34eea0dd6ecd69c876791489 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer --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 c445e7d136bb1d3b34eea0dd6ecd69c876791489 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:11:50,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:11:50,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:11:50,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:11:50,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:11:50,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:11:50,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:11:50,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:11:50,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:11:50,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:11:50,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:11:50,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:11:50,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:11:50,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:11:50,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:11:50,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:11:50,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:11:50,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:11:50,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:11:50,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:11:50,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:11:50,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:11:50,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:11:50,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:11:50,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:11:50,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:11:50,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:11:50,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:11:50,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:11:50,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:11:50,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:11:50,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:11:50,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:11:50,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:11:50,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:11:50,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:11:50,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:11:50,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:11:50,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:11:50,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:11:50,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:11:50,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-11-30 01:11:50,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:11:50,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:11:50,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:11:50,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:11:50,497 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:11:50,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:11:50,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:11:50,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:11:50,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:11:50,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:11:50,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:11:50,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:11:50,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:11:50,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:11:50,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:11:50,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:11:50,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:11:50,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:11:50,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:11:50,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:11:50,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:11:50,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:11:50,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:11:50,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:11:50,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:11:50,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:11:50,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:11:50,503 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c445e7d136bb1d3b34eea0dd6ecd69c876791489 [2020-11-30 01:11:50,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:11:50,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:11:50,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:11:50,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:11:50,832 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:11:50,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2020-11-30 01:11:50,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/8e938aeab/cf98a61d7ff446a1a4e76c9b051781cf/FLAG46b634c85 [2020-11-30 01:11:52,086 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:11:52,087 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2020-11-30 01:11:52,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/8e938aeab/cf98a61d7ff446a1a4e76c9b051781cf/FLAG46b634c85 [2020-11-30 01:11:52,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/8e938aeab/cf98a61d7ff446a1a4e76c9b051781cf [2020-11-30 01:11:52,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:11:52,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:11:52,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:11:52,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:11:52,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:11:52,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:11:52" (1/1) ... [2020-11-30 01:11:52,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebcc21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:52, skipping insertion in model container [2020-11-30 01:11:52,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:11:52" (1/1) ... [2020-11-30 01:11:52,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:11:52,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:11:55,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:11:55,414 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:11:55,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:11:56,722 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:11:56,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56 WrapperNode [2020-11-30 01:11:56,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:11:56,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:11:56,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:11:56,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:11:56,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:56,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:57,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:11:57,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:11:57,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:11:57,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:11:57,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:57,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:58,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:58,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:58,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:58,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:58,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... [2020-11-30 01:11:59,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:11:59,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:11:59,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:11:59,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:11:59,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:11:59,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-11-30 01:11:59,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-11-30 01:11:59,504 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-11-30 01:11:59,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-30 01:11:59,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-30 01:11:59,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:11:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 01:11:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:11:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-30 01:11:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-11-30 01:11:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-11-30 01:11:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:11:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:11:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:11:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 01:11:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-11-30 01:11:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2020-11-30 01:11:59,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2020-11-30 01:11:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:11:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:11:59,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:12:02,164 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:12:02,227 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:12:02,249 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:12:08,096 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##687: assume !false; [2020-11-30 01:12:08,096 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##686: assume false; [2020-11-30 01:12:08,096 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##294: assume !false; [2020-11-30 01:12:08,097 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##293: assume false; [2020-11-30 01:12:08,097 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##298: assume !false; [2020-11-30 01:12:08,097 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##297: assume false; [2020-11-30 01:12:08,097 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##693: assume !false; [2020-11-30 01:12:08,097 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##692: assume false; [2020-11-30 01:12:08,098 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##698: assume false; [2020-11-30 01:12:08,098 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##699: assume !false; [2020-11-30 01:12:08,098 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##706: assume false; [2020-11-30 01:12:08,098 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##707: assume !false; [2020-11-30 01:12:08,099 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##444: assume !false; [2020-11-30 01:12:08,099 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##443: assume false; [2020-11-30 01:12:08,099 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##809: assume false; [2020-11-30 01:12:08,099 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##810: assume !false; [2020-11-30 01:12:08,099 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##448: assume !false; [2020-11-30 01:12:08,100 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##447: assume false; [2020-11-30 01:12:08,100 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##454: assume !false; [2020-11-30 01:12:08,100 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##453: assume false; [2020-11-30 01:12:08,100 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##521: assume !false; [2020-11-30 01:12:08,100 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##520: assume false; [2020-11-30 01:12:08,101 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !false; [2020-11-30 01:12:08,101 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume false; [2020-11-30 01:12:08,101 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2020-11-30 01:12:08,101 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2020-11-30 01:12:08,101 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2020-11-30 01:12:08,102 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-11-30 01:12:08,102 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2020-11-30 01:12:08,102 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-11-30 01:12:08,102 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2020-11-30 01:12:08,102 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2020-11-30 01:12:08,102 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2020-11-30 01:12:08,103 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2020-11-30 01:12:08,113 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:12:08,327 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:12:53,437 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3798: assume false; [2020-11-30 01:12:53,438 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3799: assume !false; [2020-11-30 01:12:53,438 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2020-11-30 01:12:53,439 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2020-11-30 01:12:53,439 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2020-11-30 01:12:53,439 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2020-11-30 01:12:53,439 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2020-11-30 01:12:53,440 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2020-11-30 01:12:53,440 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2020-11-30 01:12:53,440 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2020-11-30 01:12:53,440 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2020-11-30 01:12:53,441 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2020-11-30 01:12:53,441 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2020-11-30 01:12:53,441 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2020-11-30 01:12:53,441 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2020-11-30 01:12:53,441 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,442 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2020-11-30 01:12:53,442 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2020-11-30 01:12:53,442 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2020-11-30 01:12:53,443 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2020-11-30 01:12:53,443 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2020-11-30 01:12:53,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2020-11-30 01:12:53,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2020-11-30 01:12:53,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2020-11-30 01:12:53,444 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2020-11-30 01:12:53,445 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2020-11-30 01:12:53,445 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2020-11-30 01:12:53,445 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2020-11-30 01:12:53,445 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2020-11-30 01:12:53,446 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2020-11-30 01:12:53,446 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2020-11-30 01:12:53,447 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2020-11-30 01:12:53,448 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2020-11-30 01:12:53,448 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2020-11-30 01:12:53,448 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2020-11-30 01:12:53,448 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2020-11-30 01:12:53,449 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2020-11-30 01:12:53,449 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2020-11-30 01:12:53,449 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2020-11-30 01:12:53,449 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2020-11-30 01:12:53,449 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2020-11-30 01:12:53,450 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-3: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,450 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-7: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,450 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-5: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,450 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-15: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,451 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-13: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,451 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-17: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:12:53,451 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-1: ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset := ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;havoc ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;ppp_read_~__ptr~0.base, ppp_read_~__ptr~0.offset := ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset; [2020-11-30 01:12:53,452 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-2: ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset := ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;havoc ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;ppp_read_~__ptr___0~0.base, ppp_read_~__ptr___0~0.offset := ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset; [2020-11-30 01:12:53,452 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-3: ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset := ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;havoc ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;ppp_read_~__ptr___1~0.base, ppp_read_~__ptr___1~0.offset := ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset; [2020-11-30 01:12:53,452 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-8: ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset := ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;havoc ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;ppp_read_~__ptr___5~0.base, ppp_read_~__ptr___5~0.offset := ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset; [2020-11-30 01:12:53,452 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-6: ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset := ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;havoc ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;ppp_read_~__ptr___3~0.base, ppp_read_~__ptr___3~0.offset := ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset; [2020-11-30 01:12:53,453 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-7: ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset := ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;havoc ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;ppp_read_~__ptr___4~0.base, ppp_read_~__ptr___4~0.offset := ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset; [2020-11-30 01:12:53,512 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:12:53,512 INFO L298 CfgBuilder]: Removed 5662 assume(true) statements. [2020-11-30 01:12:53,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:53 BoogieIcfgContainer [2020-11-30 01:12:53,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:12:53,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:12:53,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:12:53,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:12:53,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:11:52" (1/3) ... [2020-11-30 01:12:53,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481ed2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:53, skipping insertion in model container [2020-11-30 01:12:53,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:56" (2/3) ... [2020-11-30 01:12:53,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481ed2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:53, skipping insertion in model container [2020-11-30 01:12:53,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:53" (3/3) ... [2020-11-30 01:12:53,531 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2020-11-30 01:12:53,546 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:12:53,555 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 39 error locations. [2020-11-30 01:12:53,571 INFO L253 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2020-11-30 01:12:53,620 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:12:53,620 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:12:53,620 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:12:53,620 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:12:53,621 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:12:53,622 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:12:53,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:12:53,622 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:12:53,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states. [2020-11-30 01:12:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:53,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:53,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:53,754 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:53,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:53,760 INFO L82 PathProgramCache]: Analyzing trace with hash -210876614, now seen corresponding path program 1 times [2020-11-30 01:12:53,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:53,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475766801] [2020-11-30 01:12:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:54,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:54,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475766801] [2020-11-30 01:12:54,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:54,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:12:54,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581235564] [2020-11-30 01:12:54,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:12:54,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:54,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:12:54,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:54,520 INFO L87 Difference]: Start difference. First operand 4480 states. Second operand 3 states. [2020-11-30 01:12:55,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:55,883 INFO L93 Difference]: Finished difference Result 13269 states and 18692 transitions. [2020-11-30 01:12:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:12:55,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 01:12:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:55,985 INFO L225 Difference]: With dead ends: 13269 [2020-11-30 01:12:55,985 INFO L226 Difference]: Without dead ends: 8618 [2020-11-30 01:12:56,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:56,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8618 states. [2020-11-30 01:12:56,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8618 to 8466. [2020-11-30 01:12:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8466 states. [2020-11-30 01:12:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8466 states to 8466 states and 11420 transitions. [2020-11-30 01:12:56,508 INFO L78 Accepts]: Start accepts. Automaton has 8466 states and 11420 transitions. Word has length 12 [2020-11-30 01:12:56,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:56,509 INFO L481 AbstractCegarLoop]: Abstraction has 8466 states and 11420 transitions. [2020-11-30 01:12:56,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:12:56,509 INFO L276 IsEmpty]: Start isEmpty. Operand 8466 states and 11420 transitions. [2020-11-30 01:12:56,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:12:56,527 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:56,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:56,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:12:56,529 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:56,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1065375457, now seen corresponding path program 1 times [2020-11-30 01:12:56,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:56,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424001877] [2020-11-30 01:12:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:56,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424001877] [2020-11-30 01:12:56,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:56,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:12:56,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380506891] [2020-11-30 01:12:56,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:12:56,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:56,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:12:56,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:56,914 INFO L87 Difference]: Start difference. First operand 8466 states and 11420 transitions. Second operand 3 states. [2020-11-30 01:12:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:57,453 INFO L93 Difference]: Finished difference Result 19166 states and 25914 transitions. [2020-11-30 01:12:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:12:57,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-30 01:12:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:57,540 INFO L225 Difference]: With dead ends: 19166 [2020-11-30 01:12:57,540 INFO L226 Difference]: Without dead ends: 10721 [2020-11-30 01:12:57,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:57,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2020-11-30 01:12:57,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 10681. [2020-11-30 01:12:57,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10681 states. [2020-11-30 01:12:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10681 states to 10681 states and 14477 transitions. [2020-11-30 01:12:57,997 INFO L78 Accepts]: Start accepts. Automaton has 10681 states and 14477 transitions. Word has length 37 [2020-11-30 01:12:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:57,998 INFO L481 AbstractCegarLoop]: Abstraction has 10681 states and 14477 transitions. [2020-11-30 01:12:57,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:12:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 10681 states and 14477 transitions. [2020-11-30 01:12:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-30 01:12:58,003 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:58,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:58,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:12:58,004 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:58,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:58,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1452098420, now seen corresponding path program 1 times [2020-11-30 01:12:58,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:58,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754486116] [2020-11-30 01:12:58,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:59,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:59,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754486116] [2020-11-30 01:12:59,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:59,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:12:59,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233016294] [2020-11-30 01:12:59,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:12:59,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:59,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:12:59,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:12:59,085 INFO L87 Difference]: Start difference. First operand 10681 states and 14477 transitions. Second operand 5 states. [2020-11-30 01:12:59,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:59,824 INFO L93 Difference]: Finished difference Result 21344 states and 28932 transitions. [2020-11-30 01:12:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:12:59,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-11-30 01:12:59,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:59,920 INFO L225 Difference]: With dead ends: 21344 [2020-11-30 01:12:59,920 INFO L226 Difference]: Without dead ends: 10681 [2020-11-30 01:12:59,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:12:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2020-11-30 01:13:00,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 10681. [2020-11-30 01:13:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10681 states. [2020-11-30 01:13:00,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10681 states to 10681 states and 14475 transitions. [2020-11-30 01:13:00,343 INFO L78 Accepts]: Start accepts. Automaton has 10681 states and 14475 transitions. Word has length 44 [2020-11-30 01:13:00,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:00,343 INFO L481 AbstractCegarLoop]: Abstraction has 10681 states and 14475 transitions. [2020-11-30 01:13:00,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:13:00,344 INFO L276 IsEmpty]: Start isEmpty. Operand 10681 states and 14475 transitions. [2020-11-30 01:13:00,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-30 01:13:00,351 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:00,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:00,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:13:00,356 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:00,357 INFO L82 PathProgramCache]: Analyzing trace with hash 2136426390, now seen corresponding path program 1 times [2020-11-30 01:13:00,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:00,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700610087] [2020-11-30 01:13:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:01,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:01,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:01,948 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:13:01,952 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:13:01,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:13:02,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:13:02 BoogieIcfgContainer [2020-11-30 01:13:02,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:13:02,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:13:02,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:13:02,302 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:13:02,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:53" (3/4) ... [2020-11-30 01:13:02,307 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:13:02,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:13:02,310 INFO L168 Benchmark]: Toolchain (without parser) took 69944.06 ms. Allocated memory was 102.8 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 63.8 MB in the beginning and 941.9 MB in the end (delta: -878.2 MB). Peak memory consumption was 685.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:02,311 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 102.8 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:13:02,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4352.72 ms. Allocated memory was 102.8 MB in the beginning and 255.9 MB in the end (delta: 153.1 MB). Free memory was 63.8 MB in the beginning and 191.6 MB in the end (delta: -127.8 MB). Peak memory consumption was 82.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:02,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 1081.99 ms. Allocated memory is still 255.9 MB. Free memory was 191.6 MB in the beginning and 119.7 MB in the end (delta: 72.0 MB). Peak memory consumption was 108.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:02,314 INFO L168 Benchmark]: Boogie Preprocessor took 1480.41 ms. Allocated memory was 255.9 MB in the beginning and 574.6 MB in the end (delta: 318.8 MB). Free memory was 119.7 MB in the beginning and 407.2 MB in the end (delta: -287.5 MB). Peak memory consumption was 87.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:02,315 INFO L168 Benchmark]: RCFGBuilder took 54229.85 ms. Allocated memory was 574.6 MB in the beginning and 1.7 GB in the end (delta: 1.1 GB). Free memory was 407.2 MB in the beginning and 1.1 GB in the end (delta: -721.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. [2020-11-30 01:13:02,316 INFO L168 Benchmark]: TraceAbstraction took 8779.03 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 943.0 MB in the end (delta: 185.6 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:02,316 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 1.7 GB. Free memory was 943.0 MB in the beginning and 941.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:13:02,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 102.8 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4352.72 ms. Allocated memory was 102.8 MB in the beginning and 255.9 MB in the end (delta: 153.1 MB). Free memory was 63.8 MB in the beginning and 191.6 MB in the end (delta: -127.8 MB). Peak memory consumption was 82.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 1081.99 ms. Allocated memory is still 255.9 MB. Free memory was 191.6 MB in the beginning and 119.7 MB in the end (delta: 72.0 MB). Peak memory consumption was 108.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 1480.41 ms. Allocated memory was 255.9 MB in the beginning and 574.6 MB in the end (delta: 318.8 MB). Free memory was 119.7 MB in the beginning and 407.2 MB in the end (delta: -287.5 MB). Peak memory consumption was 87.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 54229.85 ms. Allocated memory was 574.6 MB in the beginning and 1.7 GB in the end (delta: 1.1 GB). Free memory was 407.2 MB in the beginning and 1.1 GB in the end (delta: -721.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. * TraceAbstraction took 8779.03 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 943.0 MB in the end (delta: 185.6 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.40 ms. Allocated memory is still 1.7 GB. Free memory was 943.0 MB in the beginning and 941.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 6167, overapproximation of bitwiseOr at line 7938, overapproximation of bitwiseAnd at line 7939. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L11180] return __VERIFIER_nondet_int(); [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L5879] int tmp ; [L11003] return __VERIFIER_nondet_int(); [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L7037] val = (int )__val_gu___1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L7038] COND FALSE !(__ret_gu___1 != 0) [L7045] EXPR ppp->flags [L7045] cflags = (int )(ppp->flags & (unsigned int )(~ val)) [L7046] ppp->flags = (unsigned int )val & 4214508U [L7050] COND TRUE (cflags & 64) != 0 [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; [L9960] EXPR ppp->flags [L9960] ppp->flags = ppp->flags & 4294967103U [L9961] ppp->xstate = 0U [L9962] EXPR ppp->xcomp [L9962] xcomp = ppp->xcomp [L9963] EXPR ppp->xc_state [L9963] xstate = ppp->xc_state [L9964] ppp->xc_state = (void *)0 [L9965] ppp->rstate = 0U [L9966] EXPR ppp->rcomp [L9966] rcomp = ppp->rcomp [L9967] EXPR ppp->rc_state [L9967] rstate = ppp->rc_state [L9968] ppp->rc_state = (void *)0 [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] xcomp->comp_free [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9975] xcomp->owner [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L12] COND FALSE !(0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] [L12] __assert_fail ("0", "module_get_put-drivers-net-ppp_generic.ko.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551644:18446744073709551636}, channel_count={83:0}, compressor_list={119:0}, compressor_list_lock={124:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={107:0}, npindex_to_proto={18:0}, ppp_class={0:0}, ppp_device_fops={79:0}, ppp_mutex={90:0}, ppp_net_id={71:0}, ppp_net_ops={95:0}, ppp_netdev_ops={42:0}, ppp_unit_count={74:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 4480 locations, 39 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 17666 SDtfs, 7571 SDslu, 29138 SDs, 0 SdLazy, 194 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10681occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 192 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 5482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:13:05,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:13:05,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:13:05,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:13:05,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:13:05,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:13:05,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:13:05,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:13:05,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:13:05,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:13:05,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:13:05,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:13:05,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:13:05,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:13:05,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:13:05,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:13:05,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:13:05,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:13:05,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:13:05,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:13:05,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:13:05,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:13:05,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:13:05,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:13:05,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:13:05,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:13:05,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:13:05,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:13:05,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:13:05,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:13:05,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:13:05,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:13:05,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:13:05,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:13:05,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:13:05,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:13:05,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:13:05,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:13:05,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:13:05,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:13:05,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:13:05,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2020-11-30 01:13:05,700 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:13:05,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:13:05,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:13:05,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:13:05,707 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:13:05,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:13:05,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:13:05,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:13:05,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:13:05,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:13:05,709 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:13:05,710 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:13:05,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:13:05,710 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:13:05,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:13:05,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:13:05,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:13:05,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:13:05,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:13:05,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:05,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:13:05,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:13:05,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:13:05,713 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:13:05,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:13:05,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:13:05,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:13:05,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:13:05,714 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2020-11-30 01:13:05,715 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c445e7d136bb1d3b34eea0dd6ecd69c876791489 [2020-11-30 01:13:06,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:13:06,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:13:06,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:13:06,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:13:06,288 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:13:06,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2020-11-30 01:13:06,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/3c0c570b6/4772228af2824dc59bd34c786d213744/FLAG8a745990a [2020-11-30 01:13:07,585 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:13:07,586 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2020-11-30 01:13:07,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/3c0c570b6/4772228af2824dc59bd34c786d213744/FLAG8a745990a [2020-11-30 01:13:07,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/data/3c0c570b6/4772228af2824dc59bd34c786d213744 [2020-11-30 01:13:07,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:13:07,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:13:07,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:07,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:13:07,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:13:07,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:07" (1/1) ... [2020-11-30 01:13:07,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7388599e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:07, skipping insertion in model container [2020-11-30 01:13:07,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:07" (1/1) ... [2020-11-30 01:13:07,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:13:08,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:13:11,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:11,174 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:13:11,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:12,735 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:13:12,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12 WrapperNode [2020-11-30 01:13:12,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:12,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:12,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:13:12,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:13:12,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:12,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:13,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:13,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:13:13,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:13:13,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:13:13,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:13,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:13,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:13,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:14,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:14,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:14,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... [2020-11-30 01:13:15,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:13:15,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:13:15,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:13:15,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:13:15,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-30 01:13:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2020-11-30 01:13:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-11-30 01:13:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:13:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-30 01:13:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2020-11-30 01:13:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-30 01:13:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:13:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 01:13:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2020-11-30 01:13:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-30 01:13:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2020-11-30 01:13:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:13:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:13:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-30 01:13:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:13:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-11-30 01:13:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2020-11-30 01:13:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-11-30 01:13:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2020-11-30 01:13:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2020-11-30 01:13:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2020-11-30 01:13:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:13:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 01:13:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-11-30 01:13:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2020-11-30 01:13:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2020-11-30 01:13:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-11-30 01:13:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2020-11-30 01:13:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:13:15,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:13:17,711 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:13:17,956 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:13:18,029 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:13:18,049 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:13:18,178 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:15:55,186 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2478: assume false; [2020-11-30 01:15:55,187 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2479: assume !false; [2020-11-30 01:15:55,187 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2443: assume !false; [2020-11-30 01:15:55,187 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2442: assume false; [2020-11-30 01:15:55,188 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2449: assume !false; [2020-11-30 01:15:55,188 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2448: assume false; [2020-11-30 01:15:55,188 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2375: assume !false; [2020-11-30 01:15:55,188 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2374: assume false; [2020-11-30 01:15:55,189 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2379: assume !false; [2020-11-30 01:15:55,189 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2378: assume false; [2020-11-30 01:15:55,189 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2366: assume !false; [2020-11-30 01:15:55,189 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2365: assume false; [2020-11-30 01:15:55,190 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2020-11-30 01:15:55,190 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2020-11-30 01:15:55,190 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2020-11-30 01:15:55,191 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2020-11-30 01:15:55,191 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2020-11-30 01:15:55,191 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2020-11-30 01:15:55,191 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2020-11-30 01:15:55,192 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2020-11-30 01:15:55,192 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2020-11-30 01:15:55,192 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2020-11-30 01:15:55,192 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2020-11-30 01:15:55,192 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2020-11-30 01:15:55,193 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2020-11-30 01:15:55,193 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,193 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2020-11-30 01:15:55,193 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2020-11-30 01:15:55,194 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2020-11-30 01:15:55,194 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2807: assume false; [2020-11-30 01:15:55,194 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2808: assume !false; [2020-11-30 01:15:55,195 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2814: assume !false; [2020-11-30 01:15:55,195 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2813: assume false; [2020-11-30 01:15:55,195 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2803: assume false; [2020-11-30 01:15:55,195 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2804: assume !false; [2020-11-30 01:15:55,196 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2881: assume !false; [2020-11-30 01:15:55,196 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2880: assume false; [2020-11-30 01:15:55,196 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2020-11-30 01:15:55,196 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2020-11-30 01:15:55,197 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume false;havoc get_current_#res.base, get_current_#res.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset;havoc get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,197 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2654: assume !false; [2020-11-30 01:15:55,197 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2653: assume false; [2020-11-30 01:15:55,197 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2020-11-30 01:15:55,198 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2020-11-30 01:15:55,198 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2658: assume !false; [2020-11-30 01:15:55,198 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2657: assume false; [2020-11-30 01:15:55,198 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2020-11-30 01:15:55,199 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2020-11-30 01:15:55,199 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2020-11-30 01:15:55,199 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2020-11-30 01:15:55,199 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2020-11-30 01:15:55,199 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2020-11-30 01:15:55,200 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2020-11-30 01:15:55,200 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2020-11-30 01:15:55,200 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3046: assume false; [2020-11-30 01:15:55,200 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3047: assume !false; [2020-11-30 01:15:55,201 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3066: assume false; [2020-11-30 01:15:55,201 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3067: assume !false; [2020-11-30 01:15:55,201 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3053: assume !false; [2020-11-30 01:15:55,202 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3052: assume false; [2020-11-30 01:15:55,202 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3059: assume !false; [2020-11-30 01:15:55,202 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3058: assume false; [2020-11-30 01:15:55,202 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4234: assume false; [2020-11-30 01:15:55,202 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4235: assume !false; [2020-11-30 01:15:55,203 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3169: assume false; [2020-11-30 01:15:55,204 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3170: assume !false; [2020-11-30 01:15:55,206 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2020-11-30 01:15:55,206 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2020-11-30 01:15:55,206 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2020-11-30 01:15:55,207 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2020-11-30 01:15:55,207 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2020-11-30 01:15:55,207 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2020-11-30 01:15:55,207 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2020-11-30 01:15:55,207 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2020-11-30 01:15:55,208 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2020-11-30 01:15:55,208 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2020-11-30 01:15:55,208 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-3: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,209 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-7: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,209 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-5: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,209 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-15: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,209 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-13: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,209 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-17: get_current_#res.base, get_current_#res.offset := get_current_~pfo_ret__~0.base, get_current_~pfo_ret__~0.offset; [2020-11-30 01:15:55,210 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-1: ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset := ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;havoc ppp_read_#t~ret304.base, ppp_read_#t~ret304.offset;ppp_read_~__ptr~0.base, ppp_read_~__ptr~0.offset := ppp_read_~tmp___0~15.base, ppp_read_~tmp___0~15.offset; [2020-11-30 01:15:55,210 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-2: ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset := ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;havoc ppp_read_#t~ret305.base, ppp_read_#t~ret305.offset;ppp_read_~__ptr___0~0.base, ppp_read_~__ptr___0~0.offset := ppp_read_~tmp___1~6.base, ppp_read_~tmp___1~6.offset; [2020-11-30 01:15:55,210 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-3: ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset := ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;havoc ppp_read_#t~ret306.base, ppp_read_#t~ret306.offset;ppp_read_~__ptr___1~0.base, ppp_read_~__ptr___1~0.offset := ppp_read_~tmp___2~5.base, ppp_read_~tmp___2~5.offset; [2020-11-30 01:15:55,211 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-8: ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset := ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;havoc ppp_read_#t~ret318.base, ppp_read_#t~ret318.offset;ppp_read_~__ptr___5~0.base, ppp_read_~__ptr___5~0.offset := ppp_read_~tmp___8~0.base, ppp_read_~tmp___8~0.offset; [2020-11-30 01:15:55,211 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-6: ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset := ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;havoc ppp_read_#t~ret316.base, ppp_read_#t~ret316.offset;ppp_read_~__ptr___3~0.base, ppp_read_~__ptr___3~0.offset := ppp_read_~tmp___6~0.base, ppp_read_~tmp___6~0.offset; [2020-11-30 01:15:55,211 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-7: ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset := get_current_#res.base, get_current_#res.offset;ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset := ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;havoc ppp_read_#t~ret317.base, ppp_read_#t~ret317.offset;ppp_read_~__ptr___4~0.base, ppp_read_~__ptr___4~0.offset := ppp_read_~tmp___7~0.base, ppp_read_~tmp___7~0.offset; [2020-11-30 01:15:55,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:15:55,274 INFO L298 CfgBuilder]: Removed 5562 assume(true) statements. [2020-11-30 01:15:55,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:15:55 BoogieIcfgContainer [2020-11-30 01:15:55,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:15:55,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:15:55,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:15:55,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:15:55,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:13:07" (1/3) ... [2020-11-30 01:15:55,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145c4d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:15:55, skipping insertion in model container [2020-11-30 01:15:55,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:12" (2/3) ... [2020-11-30 01:15:55,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145c4d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:15:55, skipping insertion in model container [2020-11-30 01:15:55,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:15:55" (3/3) ... [2020-11-30 01:15:55,294 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2020-11-30 01:15:55,309 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:15:55,320 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 39 error locations. [2020-11-30 01:15:55,337 INFO L253 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2020-11-30 01:15:55,416 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:15:55,416 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:15:55,416 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:15:55,416 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:15:55,417 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:15:55,417 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:15:55,417 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:15:55,417 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:15:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4250 states. [2020-11-30 01:15:55,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:15:55,564 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:15:55,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:15:55,566 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:15:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:55,578 INFO L82 PathProgramCache]: Analyzing trace with hash 506300410, now seen corresponding path program 1 times [2020-11-30 01:15:55,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:15:55,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897198145] [2020-11-30 01:15:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:15:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:15:57,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:15:57,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:15:57,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:57,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:15:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:57,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897198145] [2020-11-30 01:15:57,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:15:57,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:15:57,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013727263] [2020-11-30 01:15:58,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:15:58,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:15:58,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:15:58,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:15:58,025 INFO L87 Difference]: Start difference. First operand 4250 states. Second operand 3 states. [2020-11-30 01:15:59,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:15:59,718 INFO L93 Difference]: Finished difference Result 12579 states and 17600 transitions. [2020-11-30 01:15:59,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:15:59,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 01:15:59,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:15:59,813 INFO L225 Difference]: With dead ends: 12579 [2020-11-30 01:15:59,813 INFO L226 Difference]: Without dead ends: 8158 [2020-11-30 01:15:59,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:15:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2020-11-30 01:16:00,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 8006. [2020-11-30 01:16:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8006 states. [2020-11-30 01:16:00,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8006 states to 8006 states and 10695 transitions. [2020-11-30 01:16:00,522 INFO L78 Accepts]: Start accepts. Automaton has 8006 states and 10695 transitions. Word has length 12 [2020-11-30 01:16:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:00,522 INFO L481 AbstractCegarLoop]: Abstraction has 8006 states and 10695 transitions. [2020-11-30 01:16:00,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:16:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 8006 states and 10695 transitions. [2020-11-30 01:16:00,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:16:00,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:00,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:00,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:16:00,756 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:00,757 INFO L82 PathProgramCache]: Analyzing trace with hash -2094561803, now seen corresponding path program 1 times [2020-11-30 01:16:00,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:16:00,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005471884] [2020-11-30 01:16:00,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:16:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:03,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:16:03,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:03,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:16:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:03,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005471884] [2020-11-30 01:16:03,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:03,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-30 01:16:03,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368540593] [2020-11-30 01:16:03,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:16:03,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:16:03,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:16:03,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:03,095 INFO L87 Difference]: Start difference. First operand 8006 states and 10695 transitions. Second operand 5 states. [2020-11-30 01:16:03,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:03,621 INFO L93 Difference]: Finished difference Result 15994 states and 21368 transitions. [2020-11-30 01:16:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:16:03,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-11-30 01:16:03,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:03,682 INFO L225 Difference]: With dead ends: 15994 [2020-11-30 01:16:03,683 INFO L226 Difference]: Without dead ends: 8006 [2020-11-30 01:16:03,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:16:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8006 states. [2020-11-30 01:16:04,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8006 to 8006. [2020-11-30 01:16:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8006 states. [2020-11-30 01:16:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8006 states to 8006 states and 10693 transitions. [2020-11-30 01:16:04,061 INFO L78 Accepts]: Start accepts. Automaton has 8006 states and 10693 transitions. Word has length 37 [2020-11-30 01:16:04,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:04,062 INFO L481 AbstractCegarLoop]: Abstraction has 8006 states and 10693 transitions. [2020-11-30 01:16:04,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:16:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8006 states and 10693 transitions. [2020-11-30 01:16:04,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-30 01:16:04,065 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:04,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:04,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:16:04,281 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:04,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1673159627, now seen corresponding path program 1 times [2020-11-30 01:16:04,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:16:04,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454665253] [2020-11-30 01:16:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:16:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:06,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:16:06,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:06,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:06,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:16:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:06,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454665253] [2020-11-30 01:16:06,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:06,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 01:16:06,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632806575] [2020-11-30 01:16:06,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:16:06,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:16:06,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:16:06,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:16:06,296 INFO L87 Difference]: Start difference. First operand 8006 states and 10693 transitions. Second operand 4 states. [2020-11-30 01:16:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:07,275 INFO L93 Difference]: Finished difference Result 23538 states and 31412 transitions. [2020-11-30 01:16:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:16:07,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-11-30 01:16:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:07,408 INFO L225 Difference]: With dead ends: 23538 [2020-11-30 01:16:07,408 INFO L226 Difference]: Without dead ends: 15553 [2020-11-30 01:16:07,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:16:07,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15553 states. [2020-11-30 01:16:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15553 to 15373. [2020-11-30 01:16:08,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15373 states. [2020-11-30 01:16:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15373 states to 15373 states and 20586 transitions. [2020-11-30 01:16:08,457 INFO L78 Accepts]: Start accepts. Automaton has 15373 states and 20586 transitions. Word has length 44 [2020-11-30 01:16:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:08,458 INFO L481 AbstractCegarLoop]: Abstraction has 15373 states and 20586 transitions. [2020-11-30 01:16:08,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:16:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 15373 states and 20586 transitions. [2020-11-30 01:16:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-30 01:16:08,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:08,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:08,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:16:08,692 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:08,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:08,693 INFO L82 PathProgramCache]: Analyzing trace with hash 593059941, now seen corresponding path program 1 times [2020-11-30 01:16:08,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:16:08,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840110693] [2020-11-30 01:16:08,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8ce191d-85e3-4dc6-970c-c447f3e6dd0d/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 01:17:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:17:02,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:18:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:18:00,846 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:18:01,768 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 01:18:01,769 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:18:01,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:18:02,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:18:02 BoogieIcfgContainer [2020-11-30 01:18:02,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:18:02,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:18:02,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:18:02,315 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:18:02,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:15:55" (3/4) ... [2020-11-30 01:18:02,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:18:02,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:18:02,322 INFO L168 Benchmark]: Toolchain (without parser) took 294441.02 ms. Allocated memory was 52.4 MB in the beginning and 1.7 GB in the end (delta: 1.7 GB). Free memory was 28.6 MB in the beginning and 1.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 313.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:02,323 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:18:02,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4855.03 ms. Allocated memory was 52.4 MB in the beginning and 182.5 MB in the end (delta: 130.0 MB). Free memory was 28.3 MB in the beginning and 91.2 MB in the end (delta: -63.0 MB). Peak memory consumption was 112.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:02,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 970.28 ms. Allocated memory was 182.5 MB in the beginning and 287.3 MB in the end (delta: 104.9 MB). Free memory was 91.2 MB in the beginning and 144.8 MB in the end (delta: -53.6 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:02,326 INFO L168 Benchmark]: Boogie Preprocessor took 1366.52 ms. Allocated memory is still 287.3 MB. Free memory was 144.8 MB in the beginning and 108.3 MB in the end (delta: 36.5 MB). Peak memory consumption was 86.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:02,327 INFO L168 Benchmark]: RCFGBuilder took 160204.04 ms. Allocated memory was 287.3 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 108.3 MB in the beginning and 941.1 MB in the end (delta: -832.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. [2020-11-30 01:18:02,327 INFO L168 Benchmark]: TraceAbstraction took 127028.68 ms. Allocated memory is still 1.7 GB. Free memory was 941.1 MB in the beginning and 1.4 GB in the end (delta: -442.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:18:02,328 INFO L168 Benchmark]: Witness Printer took 4.97 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:18:02,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4855.03 ms. Allocated memory was 52.4 MB in the beginning and 182.5 MB in the end (delta: 130.0 MB). Free memory was 28.3 MB in the beginning and 91.2 MB in the end (delta: -63.0 MB). Peak memory consumption was 112.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 970.28 ms. Allocated memory was 182.5 MB in the beginning and 287.3 MB in the end (delta: 104.9 MB). Free memory was 91.2 MB in the beginning and 144.8 MB in the end (delta: -53.6 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 1366.52 ms. Allocated memory is still 287.3 MB. Free memory was 144.8 MB in the beginning and 108.3 MB in the end (delta: 36.5 MB). Peak memory consumption was 86.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 160204.04 ms. Allocated memory was 287.3 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 108.3 MB in the beginning and 941.1 MB in the end (delta: -832.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. * TraceAbstraction took 127028.68 ms. Allocated memory is still 1.7 GB. Free memory was 941.1 MB in the beginning and 1.4 GB in the end (delta: -442.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.97 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 6167. Possible FailurePath: [L6164-L6171] static struct mutex ppp_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex.wait_lock", 0, 0UL}}}}, {& ppp_mutex.wait_list, & ppp_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& ppp_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "ppp_mutex", 0, 0UL}}; [L6172] static atomic_t ppp_unit_count = {0}; [L6173] static atomic_t channel_count = {0}; [L6174] static int ppp_net_id ; [L6207] static struct class *ppp_class ; [L6268-L6269] static int const npindex_to_proto[6U] = { (int const )33, (int const )87, (int const )43, (int const )41, (int const )641, (int const )643}; [L6313-L6314] static int const npindex_to_ethertype[6U] = { (int const )2048, (int const )34525, (int const )33079, (int const )16, (int const )34887, (int const )34888}; [L7621-L7646] static struct file_operations const ppp_device_fops = {& __this_module, & noop_llseek, & ppp_read, & ppp_write, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, & ppp_poll, & ppp_ioctl, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & ppp_open, (int (*)(struct file * , fl_owner_t ))0, & ppp_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L7679-L7680] static struct pernet_operations ppp_net_ops = {{(struct list_head *)0, (struct list_head *)0}, & ppp_init_net, & ppp_exit_net, (void (*)(struct list_head * ))0, & ppp_net_id, 376UL}; [L7891-L7927] static struct net_device_ops const ppp_netdev_ops = {(int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, & ppp_start_xmit, (u16 (*)(struct net_device * , struct sk_buff * ))0, (void (*)(struct net_device * , int ))0, (void (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , void * ))0, (int (*)(struct net_device * ))0, & ppp_net_ioctl, (int (*)(struct net_device * , struct ifmap * ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct neigh_parms * ))0, (void (*)(struct net_device * ))0, (struct rtnl_link_stats64 *(*)(struct net_device * , struct rtnl_link_stats64 * ))0, (struct net_device_stats *(*)(struct net_device * ))0, (void (*)(struct net_device * , struct vlan_group * ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * , unsigned short ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , struct netpoll_info * ))0, (void (*)(struct net_device * ))0, (int (*)(struct net_device * , int , u8 * ))0, (int (*)(struct net_device * , int , u16 , u8 ))0, (int (*)(struct net_device * , int , int ))0, (int (*)(struct net_device * , int , struct ifla_vf_info * ))0, (int (*)(struct net_device * , int , struct nlattr ** ))0, (int (*)(struct net_device * , int , struct sk_buff * ))0, (int (*)(struct net_device * , u8 ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u16 ))0, (int (*)(struct net_device * , u16 , struct scatterlist * , unsigned int ))0, (int (*)(struct net_device * , u64 * , int ))0, (int (*)(struct net_device * , struct sk_buff const * , u16 , u32 ))0, (int (*)(struct net_device * , struct net_device * ))0, (int (*)(struct net_device * , struct net_device * ))0, (u32 (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , u32 ))0}; [L8312] static bool mp_protocol_compress = (bool )1; [L9989] static struct list_head compressor_list = {& compressor_list, & compressor_list}; [L9990-L9994] static spinlock_t compressor_list_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "compressor_list_lock", 0, 0UL}}}}; [L10620] int LDV_IN_INTERRUPT ; [L10813] int ldv_module_refcounter = 1; VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10622] struct file *var_group1 ; [L10623] char *var_ppp_read_5_p1 ; [L10624] size_t var_ppp_read_5_p2 ; [L10625] loff_t *var_ppp_read_5_p3 ; [L10626] ssize_t res_ppp_read_5 ; [L10627] char const *var_ppp_write_6_p1 ; [L10628] size_t var_ppp_write_6_p2 ; [L10629] loff_t *var_ppp_write_6_p3 ; [L10630] ssize_t res_ppp_write_6 ; [L10631] poll_table *var_ppp_poll_7_p1 ; [L10632] unsigned int var_ppp_ioctl_9_p1 ; [L10633] unsigned long var_ppp_ioctl_9_p2 ; [L10634] struct inode *var_group2 ; [L10635] int res_ppp_open_3 ; [L10636] struct net *var_group3 ; [L10637] struct sk_buff *var_group4 ; [L10638] struct net_device *var_group5 ; [L10639] struct ifreq *var_group6 ; [L10640] int var_ppp_net_ioctl_15_p2 ; [L10641] int ldv_s_ppp_device_fops_file_operations ; [L10642] int tmp ; [L10643] int tmp___0 ; [L10644] int tmp___1 ; [L10647] ldv_s_ppp_device_fops_file_operations = 0 [L10648] LDV_IN_INTERRUPT = 1 VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L11180] return __VERIFIER_nondet_int(); [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L5879] int tmp ; [L11003] return __VERIFIER_nondet_int(); [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10972] return ldv_malloc(sizeof(struct class)); [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L6746] struct ppp_file *pf ; [L6747] struct ppp *ppp ; [L6748] int err ; [L6749] int val ; [L6750] int val2 ; [L6751] int i ; [L6752] struct ppp_idle idle ; [L6753] struct npioctl npi ; [L6754] int unit ; [L6755] int cflags ; [L6756] struct slcompress *vj ; [L6757] void *argp ; [L6758] int *p ; [L6759] struct task_struct *tmp ; [L6760] int tmp___0 ; [L6761] struct ppp_file const *__mptr ; [L6762] long tmp___1 ; [L6763] long tmp___2 ; [L6764] struct channel *pch ; [L6765] struct ppp_channel *chan ; [L6766] struct ppp_file const *__mptr___0 ; [L6767] int __ret_gu ; [L6768] unsigned long __val_gu ; [L6769] struct ppp_file const *__mptr___1 ; [L6770] int __ret_gu___0 ; [L6771] unsigned long __val_gu___0 ; [L6772] int __ret_gu___1 ; [L6773] unsigned long __val_gu___1 ; [L6774] int __ret_pu ; [L6775] int __pu_val ; [L6776] int __ret_pu___0 ; [L6777] int __pu_val___0 ; [L6778] int __ret_gu___2 ; [L6779] unsigned long __val_gu___2 ; [L6780] int __ret_pu___1 ; [L6781] int __pu_val___1 ; [L6782] int tmp___3 ; [L6783] int __ret_gu___3 ; [L6784] unsigned long __val_gu___3 ; [L6785] unsigned long tmp___4 ; [L6786] int tmp___5 ; [L6787] struct sock_filter *code ; [L6788] struct sock_filter *code___0 ; [L6789] int __ret_gu___4 ; [L6790] unsigned long __val_gu___4 ; [L6792] EXPR file->private_data [L6792] pf = (struct ppp_file *)file->private_data [L6793] err = -14 [L6794] argp = (void *)arg [L6795] p = (int *)argp VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L6804] COND FALSE !(cmd == 1074033724U) [L6840] EXPR pf->kind VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L6840] COND FALSE !((unsigned int )pf->kind == 2U) [L6923] EXPR pf->kind VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L6923] COND FALSE !((unsigned int )pf->kind != 1U) [L6932] __mptr___1 = (struct ppp_file const *)pf [L6933] ppp = (struct ppp *)__mptr___1 VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L6935] COND FALSE !((int )cmd == 1074033746) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L6938] COND TRUE (int )cmd == 1074033753 VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L7037] val = (int )__val_gu___1 VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L7038] COND FALSE !(__ret_gu___1 != 0) [L7045] EXPR ppp->flags [L7045] cflags = (int )(ppp->flags & (unsigned int )(~ val)) [L7046] ppp->flags = (unsigned int )val & 4214508U [L7050] COND TRUE (cflags & 64) != 0 [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; [L9960] EXPR ppp->flags [L9960] ppp->flags = ppp->flags & 4294967103U [L9961] ppp->xstate = 0U [L9962] EXPR ppp->xcomp [L9962] xcomp = ppp->xcomp [L9963] EXPR ppp->xc_state [L9963] xstate = ppp->xc_state [L9964] ppp->xc_state = (void *)0 [L9965] ppp->rstate = 0U [L9966] EXPR ppp->rcomp [L9966] rcomp = ppp->rcomp [L9967] EXPR ppp->rc_state [L9967] rstate = ppp->rc_state [L9968] ppp->rc_state = (void *)0 [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] xcomp->comp_free [L7931] dev->netdev_ops = & ppp_netdev_ops [L7932] dev->hard_header_len = (unsigned short)4 [L7933] dev->mtu = 1500U [L7934] dev->addr_len = (unsigned char)0 [L7935] dev->tx_queue_len = 3UL [L7936] dev->type = (unsigned short)512 [L7937] dev->flags = 4240U [L7938] EXPR dev->features [L7938] dev->features = dev->features | 8192U [L7939] EXPR dev->priv_flags [L7939] dev->priv_flags = dev->priv_flags & 4294966271U [L9975] xcomp->owner [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L12] COND FALSE !(0) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] [L12] __assert_fail ("0", "module_get_put-drivers-net-ppp_generic.ko.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [__this_module={0:0}, channel_count={1795149110:0}, compressor_list={184536118:0}, compressor_list_lock={16:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={1140850774:0}, npindex_to_proto={-1694512074:0}, ppp_class={0:0}, ppp_device_fops={-1006632586:0}, ppp_mutex={587202441:0}, ppp_net_id={184549282:0}, ppp_net_ops={-1430782321:0}, ppp_netdev_ops={-889205698:0}, ppp_unit_count={-1946222938:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4250 locations, 39 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 126.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 16571 SDtfs, 16030 SDslu, 29878 SDs, 0 SdLazy, 204 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15373occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 332 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 54.9s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 14205 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2125 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...