./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 fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 20:52:20,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 20:52:20,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 20:52:20,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 20:52:20,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 20:52:20,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 20:52:20,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 20:52:20,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 20:52:20,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 20:52:20,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 20:52:20,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 20:52:20,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 20:52:20,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 20:52:20,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 20:52:20,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 20:52:20,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 20:52:20,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 20:52:20,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 20:52:20,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 20:52:20,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 20:52:20,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 20:52:20,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 20:52:20,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 20:52:20,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 20:52:20,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 20:52:20,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 20:52:20,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 20:52:20,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 20:52:20,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 20:52:20,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 20:52:20,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 20:52:20,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 20:52:20,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 20:52:20,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 20:52:20,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 20:52:20,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 20:52:20,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 20:52:20,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 20:52:20,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 20:52:20,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 20:52:20,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 20:52:20,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 20:52:20,599 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 20:52:20,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 20:52:20,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 20:52:20,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 20:52:20,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 20:52:20,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 20:52:20,602 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 20:52:20,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 20:52:20,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 20:52:20,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 20:52:20,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 20:52:20,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 20:52:20,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 20:52:20,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 20:52:20,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 20:52:20,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 20:52:20,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 20:52:20,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 20:52:20,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 20:52:20,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:52:20,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 20:52:20,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 20:52:20,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 20:52:20,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 20:52:20,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 20:52:20,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 20:52:20,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 20:52:20,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 20:52:20,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 20:52:20,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-22 20:52:20,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 20:52:20,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 20:52:20,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 20:52:20,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 20:52:20,818 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 20:52:20,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-22 20:52:20,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e626e44f4/384e07055aca4748a9ec22eeac2005c4/FLAG49d16d627 [2021-11-22 20:52:21,478 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 20:52:21,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-22 20:52:21,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e626e44f4/384e07055aca4748a9ec22eeac2005c4/FLAG49d16d627 [2021-11-22 20:52:21,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e626e44f4/384e07055aca4748a9ec22eeac2005c4 [2021-11-22 20:52:21,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 20:52:21,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 20:52:21,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 20:52:21,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 20:52:21,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 20:52:21,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:52:21" (1/1) ... [2021-11-22 20:52:21,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d60ee5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:21, skipping insertion in model container [2021-11-22 20:52:21,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:52:21" (1/1) ... [2021-11-22 20:52:21,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 20:52:21,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:52:23,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-22 20:52:23,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:52:23,170 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 20:52:23,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-22 20:52:23,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:52:23,539 INFO L208 MainTranslator]: Completed translation [2021-11-22 20:52:23,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23 WrapperNode [2021-11-22 20:52:23,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 20:52:23,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 20:52:23,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 20:52:23,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 20:52:23,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:23,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,157 INFO L137 Inliner]: procedures = 301, calls = 1795, calls flagged for inlining = 598, calls inlined = 2779, statements flattened = 25741 [2021-11-22 20:52:24,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 20:52:24,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 20:52:24,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 20:52:24,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 20:52:24,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 20:52:24,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 20:52:24,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 20:52:24,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 20:52:24,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (1/1) ... [2021-11-22 20:52:24,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:52:24,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:52:24,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 20:52:24,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 20:52:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-22 20:52:24,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-22 20:52:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-22 20:52:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 20:52:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 20:52:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 20:52:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 20:52:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 20:52:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 20:52:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-22 20:52:24,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-22 20:52:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 20:52:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 20:52:24,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 20:52:25,370 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 20:52:25,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 20:52:25,375 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:25,444 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:25,460 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:27,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##667: assume !false; [2021-11-22 20:52:27,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##666: assume false; [2021-11-22 20:52:27,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##672: assume false; [2021-11-22 20:52:27,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume !false; [2021-11-22 20:52:27,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##679: assume !false; [2021-11-22 20:52:27,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##678: assume false; [2021-11-22 20:52:27,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##687: assume !false; [2021-11-22 20:52:27,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##686: assume false; [2021-11-22 20:52:27,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume !false; [2021-11-22 20:52:27,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##294: assume !false; [2021-11-22 20:52:27,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##293: assume false; [2021-11-22 20:52:27,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume false; [2021-11-22 20:52:27,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##789: assume false; [2021-11-22 20:52:27,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##790: assume !false; [2021-11-22 20:52:27,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-11-22 20:52:27,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-11-22 20:52:27,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-11-22 20:52:27,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-11-22 20:52:27,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-11-22 20:52:27,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-11-22 20:52:27,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##508: assume false; [2021-11-22 20:52:27,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##509: assume !false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-22 20:52:27,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-22 20:52:27,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-22 20:52:27,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-11-22 20:52:27,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2021-11-22 20:52:27,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2021-11-22 20:52:27,623 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:27,749 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:35,190 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3743: assume !false; [2021-11-22 20:52:35,190 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3742: assume false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,191 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2021-11-22 20:52:35,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2021-11-22 20:52:35,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2021-11-22 20:52:35,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2021-11-22 20:52:35,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2021-11-22 20:52:35,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2021-11-22 20:52:35,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2021-11-22 20:52:35,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2021-11-22 20:52:35,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-3: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-7: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-5: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-15: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-13: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-17: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-1: ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset := ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;havoc ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;ppp_read_~__ptr~0#1.base, ppp_read_~__ptr~0#1.offset := ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-2: ppp_read_#t~ret295#1.base, ppp_read_#t~ret295#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___1~6#1.base, ppp_read_~tmp___1~6#1.offset := ppp_read_#t~ret295#1.base, ppp_read_#t~ret295#1.offset;havoc ppp_read_#t~ret295#1.base, ppp_read_#t~ret295#1.offset;ppp_read_~__ptr___0~0#1.base, ppp_read_~__ptr___0~0#1.offset := ppp_read_~tmp___1~6#1.base, ppp_read_~tmp___1~6#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-3: ppp_read_#t~ret296#1.base, ppp_read_#t~ret296#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___2~5#1.base, ppp_read_~tmp___2~5#1.offset := ppp_read_#t~ret296#1.base, ppp_read_#t~ret296#1.offset;havoc ppp_read_#t~ret296#1.base, ppp_read_#t~ret296#1.offset;ppp_read_~__ptr___1~0#1.base, ppp_read_~__ptr___1~0#1.offset := ppp_read_~tmp___2~5#1.base, ppp_read_~tmp___2~5#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-8: ppp_read_#t~ret308#1.base, ppp_read_#t~ret308#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___8~0#1.base, ppp_read_~tmp___8~0#1.offset := ppp_read_#t~ret308#1.base, ppp_read_#t~ret308#1.offset;havoc ppp_read_#t~ret308#1.base, ppp_read_#t~ret308#1.offset;ppp_read_~__ptr___5~0#1.base, ppp_read_~__ptr___5~0#1.offset := ppp_read_~tmp___8~0#1.base, ppp_read_~tmp___8~0#1.offset; [2021-11-22 20:52:35,194 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-6: ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset := ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;havoc ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;ppp_read_~__ptr___3~0#1.base, ppp_read_~__ptr___3~0#1.offset := ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset; [2021-11-22 20:52:35,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-7: ppp_read_#t~ret307#1.base, ppp_read_#t~ret307#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___7~0#1.base, ppp_read_~tmp___7~0#1.offset := ppp_read_#t~ret307#1.base, ppp_read_#t~ret307#1.offset;havoc ppp_read_#t~ret307#1.base, ppp_read_#t~ret307#1.offset;ppp_read_~__ptr___4~0#1.base, ppp_read_~__ptr___4~0#1.offset := ppp_read_~tmp___7~0#1.base, ppp_read_~tmp___7~0#1.offset; [2021-11-22 20:52:35,195 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 20:52:35,219 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 20:52:35,219 INFO L301 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-22 20:52:35,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:52:35 BoogieIcfgContainer [2021-11-22 20:52:35,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 20:52:35,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 20:52:35,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 20:52:35,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 20:52:35,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:52:21" (1/3) ... [2021-11-22 20:52:35,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368f2816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:52:35, skipping insertion in model container [2021-11-22 20:52:35,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:23" (2/3) ... [2021-11-22 20:52:35,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368f2816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:52:35, skipping insertion in model container [2021-11-22 20:52:35,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:52:35" (3/3) ... [2021-11-22 20:52:35,232 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-22 20:52:35,235 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 20:52:35,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-11-22 20:52:35,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 20:52:35,285 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 20:52:35,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-11-22 20:52:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 5331 states, 5286 states have (on average 1.3420355656451002) internal successors, (7094), 5325 states have internal predecessors, (7094), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-22 20:52:35,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 20:52:35,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:35,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:52:35,350 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:52:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:35,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1356074650, now seen corresponding path program 1 times [2021-11-22 20:52:35,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:52:35,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251455240] [2021-11-22 20:52:35,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:35,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:52:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:35,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:35,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:52:35,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251455240] [2021-11-22 20:52:35,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251455240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:52:35,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:52:35,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 20:52:35,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238948092] [2021-11-22 20:52:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:52:35,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 20:52:35,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:52:35,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 20:52:35,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:52:35,829 INFO L87 Difference]: Start difference. First operand has 5331 states, 5286 states have (on average 1.3420355656451002) internal successors, (7094), 5325 states have internal predecessors, (7094), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:36,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:52:36,379 INFO L93 Difference]: Finished difference Result 15821 states and 21128 transitions. [2021-11-22 20:52:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 20:52:36,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 20:52:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:52:36,427 INFO L225 Difference]: With dead ends: 15821 [2021-11-22 20:52:36,427 INFO L226 Difference]: Without dead ends: 10315 [2021-11-22 20:52:36,447 INFO L932 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 [2021-11-22 20:52:36,450 INFO L933 BasicCegarLoop]: 6876 mSDtfsCounter, 6825 mSDsluCounter, 6766 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6825 SdHoareTripleChecker+Valid, 13642 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 20:52:36,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6825 Valid, 13642 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 20:52:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2021-11-22 20:52:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 10239. [2021-11-22 20:52:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10239 states, 10190 states have (on average 1.2934249263984299) internal successors, (13180), 10228 states have internal predecessors, (13180), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-22 20:52:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10239 states to 10239 states and 13195 transitions. [2021-11-22 20:52:36,748 INFO L78 Accepts]: Start accepts. Automaton has 10239 states and 13195 transitions. Word has length 11 [2021-11-22 20:52:36,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:52:36,748 INFO L470 AbstractCegarLoop]: Abstraction has 10239 states and 13195 transitions. [2021-11-22 20:52:36,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10239 states and 13195 transitions. [2021-11-22 20:52:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-22 20:52:36,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:36,754 INFO L514 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] [2021-11-22 20:52:36,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 20:52:36,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:52:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1437117719, now seen corresponding path program 1 times [2021-11-22 20:52:36,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:52:36,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089439439] [2021-11-22 20:52:36,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:36,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:52:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:36,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:52:36,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089439439] [2021-11-22 20:52:36,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089439439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:52:36,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:52:36,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 20:52:36,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523286335] [2021-11-22 20:52:36,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:52:36,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 20:52:36,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:52:36,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 20:52:36,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:52:36,838 INFO L87 Difference]: Start difference. First operand 10239 states and 13195 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:52:37,089 INFO L93 Difference]: Finished difference Result 23143 states and 29896 transitions. [2021-11-22 20:52:37,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 20:52:37,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-22 20:52:37,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:52:37,136 INFO L225 Difference]: With dead ends: 23143 [2021-11-22 20:52:37,136 INFO L226 Difference]: Without dead ends: 12928 [2021-11-22 20:52:37,159 INFO L932 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 [2021-11-22 20:52:37,160 INFO L933 BasicCegarLoop]: 6673 mSDtfsCounter, 1803 mSDsluCounter, 6628 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 13301 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:52:37,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1804 Valid, 13301 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:52:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2021-11-22 20:52:37,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 12888. [2021-11-22 20:52:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12888 states, 12837 states have (on average 1.298278413959648) internal successors, (16666), 12875 states have internal predecessors, (16666), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-22 20:52:37,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12888 states to 12888 states and 16686 transitions. [2021-11-22 20:52:37,446 INFO L78 Accepts]: Start accepts. Automaton has 12888 states and 16686 transitions. Word has length 41 [2021-11-22 20:52:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:52:37,447 INFO L470 AbstractCegarLoop]: Abstraction has 12888 states and 16686 transitions. [2021-11-22 20:52:37,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 12888 states and 16686 transitions. [2021-11-22 20:52:37,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 20:52:37,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:37,451 INFO L514 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, 1] [2021-11-22 20:52:37,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 20:52:37,452 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:52:37,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1986223315, now seen corresponding path program 1 times [2021-11-22 20:52:37,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:52:37,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992152889] [2021-11-22 20:52:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:37,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:52:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:37,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:52:37,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992152889] [2021-11-22 20:52:37,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992152889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:52:37,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:52:37,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:52:37,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017589571] [2021-11-22 20:52:37,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:52:37,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:52:37,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:52:37,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:52:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:52:37,607 INFO L87 Difference]: Start difference. First operand 12888 states and 16686 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:37,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:52:37,883 INFO L93 Difference]: Finished difference Result 25756 states and 33348 transitions. [2021-11-22 20:52:37,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:52:37,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-22 20:52:37,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:52:37,931 INFO L225 Difference]: With dead ends: 25756 [2021-11-22 20:52:37,932 INFO L226 Difference]: Without dead ends: 12888 [2021-11-22 20:52:37,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:52:37,961 INFO L933 BasicCegarLoop]: 6676 mSDtfsCounter, 5 mSDsluCounter, 20017 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26693 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:52:37,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 26693 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:52:37,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12888 states. [2021-11-22 20:52:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12888 to 12888. [2021-11-22 20:52:38,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12888 states, 12837 states have (on average 1.2981226143179871) internal successors, (16664), 12875 states have internal predecessors, (16664), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-22 20:52:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12888 states to 12888 states and 16684 transitions. [2021-11-22 20:52:38,331 INFO L78 Accepts]: Start accepts. Automaton has 12888 states and 16684 transitions. Word has length 52 [2021-11-22 20:52:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:52:38,331 INFO L470 AbstractCegarLoop]: Abstraction has 12888 states and 16684 transitions. [2021-11-22 20:52:38,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 12888 states and 16684 transitions. [2021-11-22 20:52:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 20:52:38,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:38,336 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:52:38,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 20:52:38,336 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:52:38,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:38,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1515437953, now seen corresponding path program 1 times [2021-11-22 20:52:38,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:52:38,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717531613] [2021-11-22 20:52:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:38,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:52:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:38,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:38,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:52:38,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717531613] [2021-11-22 20:52:38,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717531613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:52:38,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:52:38,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 20:52:38,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978841149] [2021-11-22 20:52:38,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:52:38,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:52:38,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:52:38,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:52:38,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:52:38,566 INFO L87 Difference]: Start difference. First operand 12888 states and 16684 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:47,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:52:47,811 INFO L93 Difference]: Finished difference Result 25789 states and 33399 transitions. [2021-11-22 20:52:47,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:52:47,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-22 20:52:47,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:52:47,844 INFO L225 Difference]: With dead ends: 25789 [2021-11-22 20:52:47,844 INFO L226 Difference]: Without dead ends: 12926 [2021-11-22 20:52:47,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:52:47,876 INFO L933 BasicCegarLoop]: 6676 mSDtfsCounter, 18 mSDsluCounter, 18073 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 24749 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-22 20:52:47,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 24749 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2021-11-22 20:52:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12926 states. [2021-11-22 20:52:48,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12926 to 12911. [2021-11-22 20:52:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12911 states, 12859 states have (on average 1.2979236332529747) internal successors, (16690), 12898 states have internal predecessors, (16690), 8 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2021-11-22 20:52:48,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12911 states to 12911 states and 16713 transitions. [2021-11-22 20:52:48,098 INFO L78 Accepts]: Start accepts. Automaton has 12911 states and 16713 transitions. Word has length 59 [2021-11-22 20:52:48,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:52:48,099 INFO L470 AbstractCegarLoop]: Abstraction has 12911 states and 16713 transitions. [2021-11-22 20:52:48,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 12911 states and 16713 transitions. [2021-11-22 20:52:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 20:52:48,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:48,102 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:52:48,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 20:52:48,103 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:52:48,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:48,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1078867427, now seen corresponding path program 1 times [2021-11-22 20:52:48,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:52:48,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759210509] [2021-11-22 20:52:48,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:48,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:52:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:48,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:52:48,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759210509] [2021-11-22 20:52:48,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759210509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:52:48,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:52:48,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 20:52:48,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292305863] [2021-11-22 20:52:48,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:52:48,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 20:52:48,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:52:48,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 20:52:48,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:52:48,186 INFO L87 Difference]: Start difference. First operand 12911 states and 16713 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:52:48,600 INFO L93 Difference]: Finished difference Result 36526 states and 47396 transitions. [2021-11-22 20:52:48,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 20:52:48,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-22 20:52:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:52:48,652 INFO L225 Difference]: With dead ends: 36526 [2021-11-22 20:52:48,653 INFO L226 Difference]: Without dead ends: 23640 [2021-11-22 20:52:48,675 INFO L932 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 [2021-11-22 20:52:48,676 INFO L933 BasicCegarLoop]: 8422 mSDtfsCounter, 5285 mSDsluCounter, 6607 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5286 SdHoareTripleChecker+Valid, 15029 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:52:48,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5286 Valid, 15029 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 20:52:48,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23640 states. [2021-11-22 20:52:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23640 to 12947. [2021-11-22 20:52:48,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12947 states, 12895 states have (on average 1.2970918960837534) internal successors, (16726), 12934 states have internal predecessors, (16726), 8 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2021-11-22 20:52:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12947 states to 12947 states and 16749 transitions. [2021-11-22 20:52:48,988 INFO L78 Accepts]: Start accepts. Automaton has 12947 states and 16749 transitions. Word has length 59 [2021-11-22 20:52:48,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:52:48,988 INFO L470 AbstractCegarLoop]: Abstraction has 12947 states and 16749 transitions. [2021-11-22 20:52:48,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 12947 states and 16749 transitions. [2021-11-22 20:52:48,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 20:52:48,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:48,995 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:52:48,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 20:52:48,995 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:52:48,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:48,996 INFO L85 PathProgramCache]: Analyzing trace with hash -419335905, now seen corresponding path program 1 times [2021-11-22 20:52:48,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:52:48,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531618902] [2021-11-22 20:52:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:48,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:52:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:49,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:52:49,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531618902] [2021-11-22 20:52:49,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531618902] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 20:52:49,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135504877] [2021-11-22 20:52:49,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:49,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 20:52:49,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:52:49,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 20:52:49,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 20:52:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:52:49,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 20:52:49,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:52:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:49,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:52:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:52:49,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135504877] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 20:52:49,837 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 20:52:49,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-22 20:52:49,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205440259] [2021-11-22 20:52:49,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 20:52:49,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 20:52:49,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:52:49,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 20:52:49,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:52:49,839 INFO L87 Difference]: Start difference. First operand 12947 states and 16749 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:50,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:52:50,239 INFO L93 Difference]: Finished difference Result 33971 states and 44102 transitions. [2021-11-22 20:52:50,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 20:52:50,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-22 20:52:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:52:50,287 INFO L225 Difference]: With dead ends: 33971 [2021-11-22 20:52:50,287 INFO L226 Difference]: Without dead ends: 21049 [2021-11-22 20:52:50,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:52:50,312 INFO L933 BasicCegarLoop]: 6670 mSDtfsCounter, 14126 mSDsluCounter, 16713 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14130 SdHoareTripleChecker+Valid, 23383 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:52:50,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14130 Valid, 23383 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:52:50,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21049 states. [2021-11-22 20:52:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21049 to 20921. [2021-11-22 20:52:50,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20921 states, 20863 states have (on average 1.3051334899103677) internal successors, (27229), 20902 states have internal predecessors, (27229), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2021-11-22 20:52:50,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20921 states to 20921 states and 27270 transitions. [2021-11-22 20:52:50,772 INFO L78 Accepts]: Start accepts. Automaton has 20921 states and 27270 transitions. Word has length 59 [2021-11-22 20:52:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:52:50,772 INFO L470 AbstractCegarLoop]: Abstraction has 20921 states and 27270 transitions. [2021-11-22 20:52:50,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:52:50,773 INFO L276 IsEmpty]: Start isEmpty. Operand 20921 states and 27270 transitions. [2021-11-22 20:52:50,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 20:52:50,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:52:50,776 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:52:50,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 20:52:50,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-22 20:52:50,996 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:52:50,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:52:50,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1623241505, now seen corresponding path program 1 times [2021-11-22 20:52:50,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:52:50,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404359049] [2021-11-22 20:52:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:52:50,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:52:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 20:52:51,226 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 20:52:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 20:52:51,486 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 20:52:51,486 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 20:52:51,487 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ppp_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION (38 of 39 remaining) [2021-11-22 20:52:51,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr1ASSERT_VIOLATIONERROR_FUNCTION (37 of 39 remaining) [2021-11-22 20:52:51,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr2ASSERT_VIOLATIONERROR_FUNCTION (36 of 39 remaining) [2021-11-22 20:52:51,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr3ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2021-11-22 20:52:51,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr4ASSERT_VIOLATIONERROR_FUNCTION (34 of 39 remaining) [2021-11-22 20:52:51,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr5ASSERT_VIOLATIONERROR_FUNCTION (33 of 39 remaining) [2021-11-22 20:52:51,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr6ASSERT_VIOLATIONERROR_FUNCTION (32 of 39 remaining) [2021-11-22 20:52:51,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr7ASSERT_VIOLATIONERROR_FUNCTION (31 of 39 remaining) [2021-11-22 20:52:51,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr8ASSERT_VIOLATIONERROR_FUNCTION (30 of 39 remaining) [2021-11-22 20:52:51,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ppp_ioctlErr9ASSERT_VIOLATIONERROR_FUNCTION (29 of 39 remaining) [2021-11-22 20:52:51,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 39 remaining) [2021-11-22 20:52:51,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (27 of 39 remaining) [2021-11-22 20:52:51,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (26 of 39 remaining) [2021-11-22 20:52:51,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (25 of 39 remaining) [2021-11-22 20:52:51,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (24 of 39 remaining) [2021-11-22 20:52:51,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (23 of 39 remaining) [2021-11-22 20:52:51,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (22 of 39 remaining) [2021-11-22 20:52:51,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (21 of 39 remaining) [2021-11-22 20:52:51,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (20 of 39 remaining) [2021-11-22 20:52:51,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (19 of 39 remaining) [2021-11-22 20:52:51,492 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (18 of 39 remaining) [2021-11-22 20:52:51,492 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (17 of 39 remaining) [2021-11-22 20:52:51,492 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (16 of 39 remaining) [2021-11-22 20:52:51,492 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (15 of 39 remaining) [2021-11-22 20:52:51,492 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (14 of 39 remaining) [2021-11-22 20:52:51,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (13 of 39 remaining) [2021-11-22 20:52:51,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (12 of 39 remaining) [2021-11-22 20:52:51,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (11 of 39 remaining) [2021-11-22 20:52:51,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (10 of 39 remaining) [2021-11-22 20:52:51,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (9 of 39 remaining) [2021-11-22 20:52:51,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (8 of 39 remaining) [2021-11-22 20:52:51,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (7 of 39 remaining) [2021-11-22 20:52:51,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (6 of 39 remaining) [2021-11-22 20:52:51,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (5 of 39 remaining) [2021-11-22 20:52:51,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (4 of 39 remaining) [2021-11-22 20:52:51,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (3 of 39 remaining) [2021-11-22 20:52:51,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (2 of 39 remaining) [2021-11-22 20:52:51,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (1 of 39 remaining) [2021-11-22 20:52:51,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (0 of 39 remaining) [2021-11-22 20:52:51,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 20:52:51,497 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:52:51,499 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 20:52:51,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 08:52:51 BoogieIcfgContainer [2021-11-22 20:52:51,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 20:52:51,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 20:52:51,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 20:52:51,588 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 20:52:51,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:52:35" (3/4) ... [2021-11-22 20:52:51,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 20:52:51,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 20:52:51,591 INFO L158 Benchmark]: Toolchain (without parser) took 29925.77ms. Allocated memory was 88.1MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 49.3MB in the beginning and 773.9MB in the end (delta: -724.5MB). Peak memory consumption was 645.2MB. Max. memory is 16.1GB. [2021-11-22 20:52:51,591 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 20:52:51,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1872.23ms. Allocated memory was 88.1MB in the beginning and 159.4MB in the end (delta: 71.3MB). Free memory was 49.2MB in the beginning and 95.4MB in the end (delta: -46.3MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2021-11-22 20:52:51,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 616.54ms. Allocated memory was 159.4MB in the beginning and 318.8MB in the end (delta: 159.4MB). Free memory was 95.4MB in the beginning and 204.8MB in the end (delta: -109.4MB). Peak memory consumption was 104.5MB. Max. memory is 16.1GB. [2021-11-22 20:52:51,591 INFO L158 Benchmark]: Boogie Preprocessor took 665.11ms. Allocated memory is still 318.8MB. Free memory was 204.8MB in the beginning and 147.1MB in the end (delta: 57.7MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. [2021-11-22 20:52:51,592 INFO L158 Benchmark]: RCFGBuilder took 10401.39ms. Allocated memory was 318.8MB in the beginning and 740.3MB in the end (delta: 421.5MB). Free memory was 147.1MB in the beginning and 243.3MB in the end (delta: -96.2MB). Peak memory consumption was 350.5MB. Max. memory is 16.1GB. [2021-11-22 20:52:51,592 INFO L158 Benchmark]: TraceAbstraction took 16360.53ms. Allocated memory was 740.3MB in the beginning and 1.5GB in the end (delta: 715.1MB). Free memory was 243.3MB in the beginning and 773.9MB in the end (delta: -530.5MB). Peak memory consumption was 185.7MB. Max. memory is 16.1GB. [2021-11-22 20:52:51,592 INFO L158 Benchmark]: Witness Printer took 2.76ms. Allocated memory is still 1.5GB. Free memory is still 773.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 20:52:51,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1872.23ms. Allocated memory was 88.1MB in the beginning and 159.4MB in the end (delta: 71.3MB). Free memory was 49.2MB in the beginning and 95.4MB in the end (delta: -46.3MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 616.54ms. Allocated memory was 159.4MB in the beginning and 318.8MB in the end (delta: 159.4MB). Free memory was 95.4MB in the beginning and 204.8MB in the end (delta: -109.4MB). Peak memory consumption was 104.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 665.11ms. Allocated memory is still 318.8MB. Free memory was 204.8MB in the beginning and 147.1MB in the end (delta: 57.7MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. * RCFGBuilder took 10401.39ms. Allocated memory was 318.8MB in the beginning and 740.3MB in the end (delta: 421.5MB). Free memory was 147.1MB in the beginning and 243.3MB in the end (delta: -96.2MB). Peak memory consumption was 350.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16360.53ms. Allocated memory was 740.3MB in the beginning and 1.5GB in the end (delta: 715.1MB). Free memory was 243.3MB in the beginning and 773.9MB in the end (delta: -530.5MB). Peak memory consumption was 185.7MB. Max. memory is 16.1GB. * Witness Printer took 2.76ms. Allocated memory is still 1.5GB. Free memory is still 773.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is 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={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [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 [L10649] FCALL ldv_initialize() [L10650] CALL, EXPR ppp_init() [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L7690] CALL, EXPR register_pernet_device(& ppp_net_ops) [L11180] return __VERIFIER_nondet_int(); [L7690] RET, EXPR register_pernet_device(& ppp_net_ops) [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L7700] CALL, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L5879] int tmp ; [L5882] CALL, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L11003] return __VERIFIER_nondet_int(); [L5882] RET, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [\old(major)=108, \result=0, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, fops={66:0}, fops={66:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, major=108, mp_protocol_compress=1, name={18:0}, name={18:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L7700] RET, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L7710] CALL, EXPR __class_create(& __this_module, "ppp", & __key) [L10972] CALL, EXPR ldv_malloc(sizeof(struct class)) [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, size=128] [L10972] RET, EXPR ldv_malloc(sizeof(struct class)) [L10972] return ldv_malloc(sizeof(struct class)); [L7710] RET, EXPR __class_create(& __this_module, "ppp", & __key) [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [\result=0, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}, ptr={0:0}, tmp=0] [L7712] RET, EXPR IS_ERR((void const *)ppp_class) [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [\result=0, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}, tmp___1=0] [L10650] RET, EXPR ppp_init() [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___1=1] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=1] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [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(arg)=18446744073709551614, \old(cmd)=1074033724, \old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, arg=18446744073709551614, argp={0:-2}, channel_count={62:0}, cmd=1074033724, code={91:0}, code___0={94:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={191:-470}, file={191:-470}, idle={97:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={95:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-2}, pf={191:-190}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(arg)=18446744073709551614, \old(cmd)=1074033724, \old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, arg=18446744073709551614, argp={0:-2}, channel_count={62:0}, cmd=1074033724, code={91:0}, code___0={94:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-14, file={191:-470}, file={191:-470}, idle={97:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={95:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-2}, pf={191:-190}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6804] COND TRUE cmd == 1074033724U [L6806] err = -22 [L6807] FCALL mutex_lock_nested(& ppp_mutex, 0U) [L6809] EXPR pf->kind VAL [\old(arg)=18446744073709551614, \old(cmd)=1074033724, \old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, arg=18446744073709551614, argp={0:-2}, channel_count={62:0}, cmd=1074033724, code={91:0}, code___0={94:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=-22, file={191:-470}, file={191:-470}, idle={97:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={95:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:-2}, pf={191:-190}, pf->kind=4294967296, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6809] COND FALSE !((unsigned int )pf->kind == 1U) [L6821] CALL, EXPR atomic_long_read(& file->f_count) [L5267] atomic64_t *v ; [L5268] long tmp ; [L5271] v = l [L5272] CALL, EXPR atomic64_read((atomic64_t const *)v) [L5263] EXPR v->counter [L5263] return ((long )*((long volatile *)(& v->counter))); [L5272] RET, EXPR atomic64_read((atomic64_t const *)v) [L5272] tmp = atomic64_read((atomic64_t const *)v) [L5274] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, l={191:-358}, l={191:-358}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=1, v={191:-358}] [L6821] RET, EXPR atomic_long_read(& file->f_count) [L6821] tmp___2 = atomic_long_read(& file->f_count) [L6823] COND TRUE tmp___2 <= 2L [L6825] CALL ppp_release((struct inode *)0, file) [L6335] struct ppp_file *pf ; [L6336] struct ppp *ppp ; [L6337] struct ppp_file const *__mptr ; [L6338] struct ppp_file const *__mptr___0 ; [L6339] struct ppp_file const *__mptr___1 ; [L6340] int tmp ; [L6342] EXPR file->private_data [L6342] pf = (struct ppp_file *)file->private_data [L6343] COND TRUE (unsigned long )pf != (unsigned long )((struct ppp_file *)0) [L6344] file->private_data = (void *)0 [L6345] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={191:-470}, file={191:-470}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={191:-190}, pf->kind=1, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}, unused={0:0}] [L6345] COND TRUE (unsigned int )pf->kind == 1U [L6346] __mptr = (struct ppp_file const *)pf [L6347] ppp = (struct ppp *)__mptr [L6348] EXPR ppp->owner VAL [\old(ldv_module_refcounter)=1, __mptr={191:-190}, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={191:-470}, file={191:-470}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={191:-190}, ppp={191:-190}, ppp->owner={82:-5}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}, unused={0:0}] [L6348] COND FALSE !((unsigned long )ppp->owner == (unsigned long )file) [L6357] CALL, EXPR atomic_dec_and_test(& pf->refcnt) [L5253] unsigned char c ; [L5257] return ((unsigned int )c != 0U); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={18446744073709551623:18446744073709551624}, c=1, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, v={191:74}, v={191:74}] [L6357] RET, EXPR atomic_dec_and_test(& pf->refcnt) [L6357] tmp = atomic_dec_and_test(& pf->refcnt) [L6359] COND TRUE tmp != 0 [L6360] EXPR pf->kind VAL [\old(ldv_module_refcounter)=1, __mptr={191:-190}, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={191:-470}, file={191:-470}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={191:-190}, pf->kind=1, ppp={191:-190}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=1, unused={0:0}, unused={0:0}] [L6360] COND TRUE (int )((unsigned int )pf->kind) == 1 [L6369] __mptr___0 = (struct ppp_file const *)pf [L6370] CALL ppp_destroy_interface((struct ppp *)__mptr___0) [L10292] FCALL atomic_dec(& ppp_unit_count) [L10294] EXPR ppp->file.dead VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={191:-190}, ppp={191:-190}, ppp->file.dead=18446744073709551619, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10294] COND FALSE !(ppp->file.dead == 0) [L10301] EXPR ppp->n_channels VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={191:-190}, ppp={191:-190}, ppp->n_channels=0, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10301] COND FALSE !(ppp->n_channels != 0) [L10310] CALL ppp_ccp_closed(ppp) [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; [L9958] CALL spin_lock_bh(& ppp->wlock) [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9958] RET spin_lock_bh(& ppp->wlock) [L9959] CALL spin_lock_bh(& ppp->rlock) [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9959] RET spin_lock_bh(& ppp->rlock) [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 [L9969] CALL spin_unlock_bh(& ppp->rlock) [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9969] RET spin_unlock_bh(& ppp->rlock) [L9970] CALL spin_unlock_bh(& ppp->wlock) [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9970] RET spin_unlock_bh(& ppp->wlock) [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] EXPR xcomp->comp_free [L9974] CALL (*(xcomp->comp_free))(xstate) [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 [L9974] RET (*(xcomp->comp_free))(xstate) [L9975] EXPR xcomp->owner [L9975] CALL ldv_module_put_5(xcomp->owner) [L10926] CALL ldv_module_put(ldv_func_arg1) [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={-82:83}, module={-82:83}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 [L10848] CALL ldv_blast_assert() [L10809] reach_error() VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551623:18446744073709551624}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 5331 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 16.2s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28068 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28062 mSDsluCounter, 116797 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74804 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2279 IncrementalHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 41993 mSDtfsCounter, 2279 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20921occurred in iteration=6, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 10952 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 400 NumberOfCodeBlocks, 400 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 772 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1498 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 4/16 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 [2021-11-22 20:52:51,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 20:52:53,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 20:52:53,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 20:52:53,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 20:52:53,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 20:52:53,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 20:52:53,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 20:52:53,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 20:52:53,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 20:52:53,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 20:52:53,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 20:52:53,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 20:52:53,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 20:52:53,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 20:52:53,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 20:52:53,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 20:52:53,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 20:52:53,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 20:52:53,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 20:52:53,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 20:52:53,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 20:52:53,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 20:52:53,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 20:52:53,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 20:52:53,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 20:52:53,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 20:52:53,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 20:52:53,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 20:52:53,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 20:52:53,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 20:52:53,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 20:52:53,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 20:52:53,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 20:52:53,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 20:52:53,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 20:52:53,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 20:52:53,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 20:52:53,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 20:52:53,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 20:52:53,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 20:52:53,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 20:52:53,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-22 20:52:53,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 20:52:53,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 20:52:53,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 20:52:53,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 20:52:53,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 20:52:53,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 20:52:53,446 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 20:52:53,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 20:52:53,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 20:52:53,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 20:52:53,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 20:52:53,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 20:52:53,447 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 20:52:53,447 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 20:52:53,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 20:52:53,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 20:52:53,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 20:52:53,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 20:52:53,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 20:52:53,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 20:52:53,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 20:52:53,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:52:53,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 20:52:53,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 20:52:53,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 20:52:53,449 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 20:52:53,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 20:52:53,449 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 20:52:53,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 20:52:53,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 20:52:53,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 20:52:53,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 20:52:53,450 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70890f3d08defb801ef42dfcccb814d43a0397723b39cd10a6795cae91719bfb [2021-11-22 20:52:53,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 20:52:53,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 20:52:53,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 20:52:53,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 20:52:53,700 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 20:52:53,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-22 20:52:53,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150df1090/c93c66479e814777b2992cb994a93534/FLAG1e7c6b326 [2021-11-22 20:52:54,456 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 20:52:54,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-22 20:52:54,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150df1090/c93c66479e814777b2992cb994a93534/FLAG1e7c6b326 [2021-11-22 20:52:54,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150df1090/c93c66479e814777b2992cb994a93534 [2021-11-22 20:52:54,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 20:52:54,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 20:52:54,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 20:52:54,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 20:52:54,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 20:52:54,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:52:54" (1/1) ... [2021-11-22 20:52:54,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37134744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:54, skipping insertion in model container [2021-11-22 20:52:54,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:52:54" (1/1) ... [2021-11-22 20:52:54,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 20:52:54,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:52:56,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-22 20:52:56,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:52:56,188 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 20:52:56,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:52:56,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-22 20:52:56,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:52:56,547 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 20:52:56,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-ppp_generic.ko.cil.out.i[288087,288100] [2021-11-22 20:52:56,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:52:57,009 INFO L208 MainTranslator]: Completed translation [2021-11-22 20:52:57,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57 WrapperNode [2021-11-22 20:52:57,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 20:52:57,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 20:52:57,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 20:52:57,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 20:52:57,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,397 INFO L137 Inliner]: procedures = 316, calls = 1793, calls flagged for inlining = 599, calls inlined = 2729, statements flattened = 24154 [2021-11-22 20:52:57,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 20:52:57,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 20:52:57,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 20:52:57,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 20:52:57,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:57,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:58,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 20:52:58,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 20:52:58,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 20:52:58,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 20:52:58,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (1/1) ... [2021-11-22 20:52:58,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:52:58,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:52:58,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 20:52:58,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 20:52:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 20:52:58,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-22 20:52:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-22 20:52:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-22 20:52:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-22 20:52:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-22 20:52:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-22 20:52:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-22 20:52:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 20:52:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 20:52:58,737 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 20:52:58,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 20:52:58,744 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:58,896 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:58,942 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:58,945 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:52:58,981 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 20:56:04,989 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2438: assume false; [2021-11-22 20:56:04,989 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2439: assume !false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2403: assume !false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2402: assume false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2409: assume !false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2408: assume false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2335: assume !false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2334: assume false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2339: assume !false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2338: assume false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2326: assume !false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2325: assume false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2021-11-22 20:56:04,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##64: assume !true; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !true; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume !false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume !false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2021-11-22 20:56:04,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2993: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2992: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2999: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2998: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2986: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2987: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2829: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2828: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2755: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2756: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2759: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2760: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2766: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2765: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2609: assume false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2610: assume !false; [2021-11-22 20:56:04,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2614: assume !false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2613: assume false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume !false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##115: assume false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !true; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !true; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##121: assume !false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##120: assume false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3006: assume false; [2021-11-22 20:56:04,993 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3007: assume !false; [2021-11-22 20:56:04,994 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4158: assume false; [2021-11-22 20:56:04,994 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4159: assume !false; [2021-11-22 20:56:04,994 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3110: assume !false; [2021-11-22 20:56:04,994 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3109: assume false; [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: assume !true; [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-1: goto; [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: assume !true; [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5181-4: goto; [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-1: call __bad_percpu_size(); [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-2: call __bad_percpu_size(); [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-6: call __bad_percpu_size(); [2021-11-22 20:56:04,995 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-3: call __bad_percpu_size(); [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-7: call __bad_percpu_size(); [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5184-8: call __bad_percpu_size(); [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-3: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-7: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-5: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-15: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-13: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5185-17: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-1: ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset := ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;havoc ppp_read_#t~ret294#1.base, ppp_read_#t~ret294#1.offset;ppp_read_~__ptr~0#1.base, ppp_read_~__ptr~0#1.offset := ppp_read_~tmp___0~15#1.base, ppp_read_~tmp___0~15#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-2: ppp_read_#t~ret295#1.base, ppp_read_#t~ret295#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___1~6#1.base, ppp_read_~tmp___1~6#1.offset := ppp_read_#t~ret295#1.base, ppp_read_#t~ret295#1.offset;havoc ppp_read_#t~ret295#1.base, ppp_read_#t~ret295#1.offset;ppp_read_~__ptr___0~0#1.base, ppp_read_~__ptr___0~0#1.offset := ppp_read_~tmp___1~6#1.base, ppp_read_~tmp___1~6#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-3: ppp_read_#t~ret296#1.base, ppp_read_#t~ret296#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___2~5#1.base, ppp_read_~tmp___2~5#1.offset := ppp_read_#t~ret296#1.base, ppp_read_#t~ret296#1.offset;havoc ppp_read_#t~ret296#1.base, ppp_read_#t~ret296#1.offset;ppp_read_~__ptr___1~0#1.base, ppp_read_~__ptr___1~0#1.offset := ppp_read_~tmp___2~5#1.base, ppp_read_~tmp___2~5#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-8: ppp_read_#t~ret308#1.base, ppp_read_#t~ret308#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___8~0#1.base, ppp_read_~tmp___8~0#1.offset := ppp_read_#t~ret308#1.base, ppp_read_#t~ret308#1.offset;havoc ppp_read_#t~ret308#1.base, ppp_read_#t~ret308#1.offset;ppp_read_~__ptr___5~0#1.base, ppp_read_~__ptr___5~0#1.offset := ppp_read_~tmp___8~0#1.base, ppp_read_~tmp___8~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-6: ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset := ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;havoc ppp_read_#t~ret306#1.base, ppp_read_#t~ret306#1.offset;ppp_read_~__ptr___3~0#1.base, ppp_read_~__ptr___3~0#1.offset := ppp_read_~tmp___6~0#1.base, ppp_read_~tmp___6~0#1.offset; [2021-11-22 20:56:04,996 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5203-7: ppp_read_#t~ret307#1.base, ppp_read_#t~ret307#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;ppp_read_~tmp___7~0#1.base, ppp_read_~tmp___7~0#1.offset := ppp_read_#t~ret307#1.base, ppp_read_#t~ret307#1.offset;havoc ppp_read_#t~ret307#1.base, ppp_read_#t~ret307#1.offset;ppp_read_~__ptr___4~0#1.base, ppp_read_~__ptr___4~0#1.offset := ppp_read_~tmp___7~0#1.base, ppp_read_~tmp___7~0#1.offset; [2021-11-22 20:56:04,997 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 20:56:05,018 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 20:56:05,018 INFO L301 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-22 20:56:05,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:56:05 BoogieIcfgContainer [2021-11-22 20:56:05,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 20:56:05,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 20:56:05,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 20:56:05,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 20:56:05,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:52:54" (1/3) ... [2021-11-22 20:56:05,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7595afce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:56:05, skipping insertion in model container [2021-11-22 20:56:05,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:52:57" (2/3) ... [2021-11-22 20:56:05,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7595afce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:56:05, skipping insertion in model container [2021-11-22 20:56:05,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:56:05" (3/3) ... [2021-11-22 20:56:05,029 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-ppp_generic.ko.cil.out.i [2021-11-22 20:56:05,032 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 20:56:05,032 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-11-22 20:56:05,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 20:56:05,077 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 20:56:05,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-11-22 20:56:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 5101 states, 5061 states have (on average 1.3315550286504643) internal successors, (6739), 5100 states have internal predecessors, (6739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 20:56:05,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:56:05,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:56:05,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:56:05,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:56:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash -171360079, now seen corresponding path program 1 times [2021-11-22 20:56:05,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:56:05,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173935461] [2021-11-22 20:56:05,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:56:05,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:56:05,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:56:05,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:56:05,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 20:56:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:56:05,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 20:56:05,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:56:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:06,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:56:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:06,107 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:56:06,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173935461] [2021-11-22 20:56:06,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173935461] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:56:06,107 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:56:06,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 20:56:06,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164745983] [2021-11-22 20:56:06,109 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:56:06,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 20:56:06,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:56:06,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 20:56:06,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:56:06,139 INFO L87 Difference]: Start difference. First operand has 5101 states, 5061 states have (on average 1.3315550286504643) internal successors, (6739), 5100 states have internal predecessors, (6739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:07,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:56:07,082 INFO L93 Difference]: Finished difference Result 15131 states and 20036 transitions. [2021-11-22 20:56:07,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 20:56:07,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 20:56:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:56:07,127 INFO L225 Difference]: With dead ends: 15131 [2021-11-22 20:56:07,127 INFO L226 Difference]: Without dead ends: 9855 [2021-11-22 20:56:07,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 20:56:07,143 INFO L933 BasicCegarLoop]: 6512 mSDtfsCounter, 6464 mSDsluCounter, 6402 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6464 SdHoareTripleChecker+Valid, 12914 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 20:56:07,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6464 Valid, 12914 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 20:56:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9855 states. [2021-11-22 20:56:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9855 to 9779. [2021-11-22 20:56:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9779 states, 9740 states have (on average 1.280287474332649) internal successors, (12470), 9778 states have internal predecessors, (12470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 12470 transitions. [2021-11-22 20:56:07,391 INFO L78 Accepts]: Start accepts. Automaton has 9779 states and 12470 transitions. Word has length 11 [2021-11-22 20:56:07,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:56:07,391 INFO L470 AbstractCegarLoop]: Abstraction has 9779 states and 12470 transitions. [2021-11-22 20:56:07,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:07,391 INFO L276 IsEmpty]: Start isEmpty. Operand 9779 states and 12470 transitions. [2021-11-22 20:56:07,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-22 20:56:07,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:56:07,396 INFO L514 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] [2021-11-22 20:56:07,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 20:56:07,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:56:07,624 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:56:07,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:56:07,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1872760152, now seen corresponding path program 1 times [2021-11-22 20:56:07,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:56:07,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068394229] [2021-11-22 20:56:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:56:07,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:56:07,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:56:07,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:56:07,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 20:56:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:56:08,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 20:56:08,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:56:08,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:08,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:56:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:08,987 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:56:08,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068394229] [2021-11-22 20:56:08,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068394229] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:56:08,987 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:56:08,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-22 20:56:08,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864379831] [2021-11-22 20:56:08,988 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:56:08,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 20:56:08,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:56:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 20:56:08,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:56:08,989 INFO L87 Difference]: Start difference. First operand 9779 states and 12470 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:56:09,331 INFO L93 Difference]: Finished difference Result 19538 states and 24916 transitions. [2021-11-22 20:56:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 20:56:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-22 20:56:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:56:09,360 INFO L225 Difference]: With dead ends: 19538 [2021-11-22 20:56:09,361 INFO L226 Difference]: Without dead ends: 9779 [2021-11-22 20:56:09,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:56:09,378 INFO L933 BasicCegarLoop]: 6315 mSDtfsCounter, 5 mSDsluCounter, 18934 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25249 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 20:56:09,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 25249 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 20:56:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2021-11-22 20:56:09,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9779. [2021-11-22 20:56:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9779 states, 9740 states have (on average 1.280082135523614) internal successors, (12468), 9778 states have internal predecessors, (12468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 12468 transitions. [2021-11-22 20:56:09,594 INFO L78 Accepts]: Start accepts. Automaton has 9779 states and 12468 transitions. Word has length 41 [2021-11-22 20:56:09,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:56:09,595 INFO L470 AbstractCegarLoop]: Abstraction has 9779 states and 12468 transitions. [2021-11-22 20:56:09,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:09,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9779 states and 12468 transitions. [2021-11-22 20:56:09,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-22 20:56:09,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:56:09,601 INFO L514 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] [2021-11-22 20:56:09,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-22 20:56:09,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:56:09,826 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:56:09,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:56:09,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1500816773, now seen corresponding path program 1 times [2021-11-22 20:56:09,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:56:09,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310686921] [2021-11-22 20:56:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:56:09,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:56:09,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:56:09,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:56:09,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 20:56:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:56:11,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 20:56:11,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:56:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:11,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:56:11,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:11,591 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:56:11,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310686921] [2021-11-22 20:56:11,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310686921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:56:11,591 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:56:11,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 20:56:11,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286998423] [2021-11-22 20:56:11,592 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:56:11,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:56:11,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:56:11,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:56:11,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:56:11,592 INFO L87 Difference]: Start difference. First operand 9779 states and 12468 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:12,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:56:12,162 INFO L93 Difference]: Finished difference Result 28713 states and 36592 transitions. [2021-11-22 20:56:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 20:56:12,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-22 20:56:12,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:56:12,212 INFO L225 Difference]: With dead ends: 28713 [2021-11-22 20:56:12,213 INFO L226 Difference]: Without dead ends: 18958 [2021-11-22 20:56:12,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:56:12,233 INFO L933 BasicCegarLoop]: 6303 mSDtfsCounter, 9059 mSDsluCounter, 9378 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9059 SdHoareTripleChecker+Valid, 15681 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 20:56:12,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9059 Valid, 15681 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 20:56:12,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18958 states. [2021-11-22 20:56:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18958 to 18834. [2021-11-22 20:56:12,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18834 states, 18795 states have (on average 1.2795424314977388) internal successors, (24049), 18833 states have internal predecessors, (24049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:12,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18834 states to 18834 states and 24049 transitions. [2021-11-22 20:56:12,630 INFO L78 Accepts]: Start accepts. Automaton has 18834 states and 24049 transitions. Word has length 48 [2021-11-22 20:56:12,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:56:12,630 INFO L470 AbstractCegarLoop]: Abstraction has 18834 states and 24049 transitions. [2021-11-22 20:56:12,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand 18834 states and 24049 transitions. [2021-11-22 20:56:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-22 20:56:12,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:56:12,635 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:56:12,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 20:56:12,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 20:56:12,847 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 20:56:12,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:56:12,848 INFO L85 PathProgramCache]: Analyzing trace with hash -844162331, now seen corresponding path program 1 times [2021-11-22 20:56:12,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 20:56:12,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851278197] [2021-11-22 20:56:12,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:56:12,849 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 20:56:12,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 20:56:12,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 20:56:12,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 20:56:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:56:13,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 20:56:13,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 20:56:14,177 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-22 20:56:14,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 20 [2021-11-22 20:56:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:19,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 20:56:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:56:23,601 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 20:56:23,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851278197] [2021-11-22 20:56:23,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851278197] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 20:56:23,602 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:56:23,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-22 20:56:23,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401692486] [2021-11-22 20:56:23,602 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 20:56:23,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:56:23,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 20:56:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:56:23,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=26, Unknown=2, NotChecked=0, Total=42 [2021-11-22 20:56:23,603 INFO L87 Difference]: Start difference. First operand 18834 states and 24049 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:56:26,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:28,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:31,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:34,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:36,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:43,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:45,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:47,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:49,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:50,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:54,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:56,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:56:59,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:02,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:04,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:06,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:11,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:14,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:17,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:20,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:25,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:27,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:29,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:32,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:34,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:39,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:45,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:47,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:50,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:52,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:55,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:57:58,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:02,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:04,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:08,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:11,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:16,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:18,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:22,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:24,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:27,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:29,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:31,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:34,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:38,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:44,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:46,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:48,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:51,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:55,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:58:58,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:00,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:03,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:06,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:09,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:11,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:14,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:16,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:18,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:22,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:24,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:27,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:29,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:31,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:32,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:34,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:35,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:37,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:39,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:42,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:44,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:46,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:49,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:52,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:54,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:56,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 20:59:58,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:01,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:03,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:06,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:08,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:10,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:12,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:14,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:16,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 21:00:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 21:00:17,420 INFO L93 Difference]: Finished difference Result 42962 states and 55006 transitions. [2021-11-22 21:00:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 21:00:17,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-22 21:00:17,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 21:00:17,485 INFO L225 Difference]: With dead ends: 42962 [2021-11-22 21:00:17,485 INFO L226 Difference]: Without dead ends: 24153 [2021-11-22 21:00:17,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=26, Invalid=42, Unknown=4, NotChecked=0, Total=72 [2021-11-22 21:00:17,520 INFO L933 BasicCegarLoop]: 7320 mSDtfsCounter, 2794 mSDsluCounter, 18968 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 109 mSolverCounterUnsat, 73 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 220.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2794 SdHoareTripleChecker+Valid, 26288 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 73 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 228.7s IncrementalHoareTripleChecker+Time [2021-11-22 21:00:17,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2794 Valid, 26288 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2632 Invalid, 73 Unknown, 15 Unchecked, 228.7s Time] [2021-11-22 21:00:17,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24153 states. [2021-11-22 21:00:18,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24153 to 19034. [2021-11-22 21:00:18,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19034 states, 18995 states have (on average 1.2792313766780732) internal successors, (24299), 19033 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 21:00:18,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19034 states to 19034 states and 24299 transitions. [2021-11-22 21:00:18,170 INFO L78 Accepts]: Start accepts. Automaton has 19034 states and 24299 transitions. Word has length 58 [2021-11-22 21:00:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 21:00:18,170 INFO L470 AbstractCegarLoop]: Abstraction has 19034 states and 24299 transitions. [2021-11-22 21:00:18,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 21:00:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 19034 states and 24299 transitions. [2021-11-22 21:00:18,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 21:00:18,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 21:00:18,174 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 21:00:18,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 21:00:18,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 21:00:18,387 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-11-22 21:00:18,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 21:00:18,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1756397779, now seen corresponding path program 1 times [2021-11-22 21:00:18,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 21:00:18,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278404342] [2021-11-22 21:00:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 21:00:18,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 21:00:18,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-22 21:00:18,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 21:00:18,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 21:00:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 21:00:38,659 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 21:00:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 21:00:59,975 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-22 21:00:59,975 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 21:00:59,976 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (38 of 39 remaining) [2021-11-22 21:00:59,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (37 of 39 remaining) [2021-11-22 21:00:59,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (36 of 39 remaining) [2021-11-22 21:00:59,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2021-11-22 21:00:59,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (34 of 39 remaining) [2021-11-22 21:00:59,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (33 of 39 remaining) [2021-11-22 21:00:59,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (32 of 39 remaining) [2021-11-22 21:00:59,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (31 of 39 remaining) [2021-11-22 21:00:59,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (30 of 39 remaining) [2021-11-22 21:00:59,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (29 of 39 remaining) [2021-11-22 21:00:59,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (28 of 39 remaining) [2021-11-22 21:00:59,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (27 of 39 remaining) [2021-11-22 21:00:59,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (26 of 39 remaining) [2021-11-22 21:00:59,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (25 of 39 remaining) [2021-11-22 21:00:59,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (24 of 39 remaining) [2021-11-22 21:00:59,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (23 of 39 remaining) [2021-11-22 21:00:59,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (22 of 39 remaining) [2021-11-22 21:00:59,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (21 of 39 remaining) [2021-11-22 21:00:59,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (20 of 39 remaining) [2021-11-22 21:00:59,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (19 of 39 remaining) [2021-11-22 21:00:59,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (18 of 39 remaining) [2021-11-22 21:00:59,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (17 of 39 remaining) [2021-11-22 21:00:59,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (16 of 39 remaining) [2021-11-22 21:00:59,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (15 of 39 remaining) [2021-11-22 21:00:59,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (14 of 39 remaining) [2021-11-22 21:00:59,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (13 of 39 remaining) [2021-11-22 21:00:59,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (12 of 39 remaining) [2021-11-22 21:00:59,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (11 of 39 remaining) [2021-11-22 21:00:59,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (10 of 39 remaining) [2021-11-22 21:00:59,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (9 of 39 remaining) [2021-11-22 21:00:59,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (8 of 39 remaining) [2021-11-22 21:00:59,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (7 of 39 remaining) [2021-11-22 21:00:59,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (6 of 39 remaining) [2021-11-22 21:00:59,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (5 of 39 remaining) [2021-11-22 21:00:59,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (4 of 39 remaining) [2021-11-22 21:00:59,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (3 of 39 remaining) [2021-11-22 21:00:59,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (2 of 39 remaining) [2021-11-22 21:00:59,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (1 of 39 remaining) [2021-11-22 21:00:59,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (0 of 39 remaining) [2021-11-22 21:01:00,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 21:01:00,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-22 21:01:00,213 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-22 21:01:00,216 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 21:01:00,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:01:00 BoogieIcfgContainer [2021-11-22 21:01:00,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 21:01:00,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 21:01:00,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 21:01:00,320 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 21:01:00,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:56:05" (3/4) ... [2021-11-22 21:01:00,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 21:01:00,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 21:01:00,323 INFO L158 Benchmark]: Toolchain (without parser) took 485536.29ms. Allocated memory was 58.7MB in the beginning and 1.5GB in the end (delta: 1.5GB). Free memory was 37.8MB in the beginning and 958.7MB in the end (delta: -920.9MB). Peak memory consumption was 568.6MB. Max. memory is 16.1GB. [2021-11-22 21:01:00,324 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 21:01:00,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2221.18ms. Allocated memory was 58.7MB in the beginning and 247.5MB in the end (delta: 188.7MB). Free memory was 37.4MB in the beginning and 185.8MB in the end (delta: -148.4MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2021-11-22 21:01:00,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 386.82ms. Allocated memory is still 247.5MB. Free memory was 185.8MB in the beginning and 86.2MB in the end (delta: 99.6MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. [2021-11-22 21:01:00,324 INFO L158 Benchmark]: Boogie Preprocessor took 677.30ms. Allocated memory was 247.5MB in the beginning and 257.9MB in the end (delta: 10.5MB). Free memory was 86.2MB in the beginning and 110.7MB in the end (delta: -24.5MB). Peak memory consumption was 136.2MB. Max. memory is 16.1GB. [2021-11-22 21:01:00,324 INFO L158 Benchmark]: RCFGBuilder took 186946.72ms. Allocated memory was 257.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 110.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 961.8MB. Max. memory is 16.1GB. [2021-11-22 21:01:00,325 INFO L158 Benchmark]: TraceAbstraction took 295294.76ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 959.8MB in the end (delta: 214.7MB). Peak memory consumption was 213.7MB. Max. memory is 16.1GB. [2021-11-22 21:01:00,325 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 1.5GB. Free memory was 959.8MB in the beginning and 958.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 21:01:00,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2221.18ms. Allocated memory was 58.7MB in the beginning and 247.5MB in the end (delta: 188.7MB). Free memory was 37.4MB in the beginning and 185.8MB in the end (delta: -148.4MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 386.82ms. Allocated memory is still 247.5MB. Free memory was 185.8MB in the beginning and 86.2MB in the end (delta: 99.6MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 677.30ms. Allocated memory was 247.5MB in the beginning and 257.9MB in the end (delta: 10.5MB). Free memory was 86.2MB in the beginning and 110.7MB in the end (delta: -24.5MB). Peak memory consumption was 136.2MB. Max. memory is 16.1GB. * RCFGBuilder took 186946.72ms. Allocated memory was 257.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 110.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 961.8MB. Max. memory is 16.1GB. * TraceAbstraction took 295294.76ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 959.8MB in the end (delta: 214.7MB). Peak memory consumption was 213.7MB. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 1.5GB. Free memory was 959.8MB in the beginning and 958.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is 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={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [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 [L10649] FCALL ldv_initialize() [L10650] CALL, EXPR ppp_init() [L7682] int err ; [L7683] struct lock_class_key __key ; [L7684] struct class *tmp ; [L7685] long tmp___0 ; [L7686] long tmp___1 ; [L7690] CALL, EXPR register_pernet_device(& ppp_net_ops) [L11180] return __VERIFIER_nondet_int(); [L7690] RET, EXPR register_pernet_device(& ppp_net_ops) [L7690] err = register_pernet_device(& ppp_net_ops) [L7692] COND FALSE !(err != 0) [L7700] CALL, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L5879] int tmp ; [L5882] CALL, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L11003] return __VERIFIER_nondet_int(); [L5882] RET, EXPR __register_chrdev(major, 0U, 256U, name, fops) [L5882] tmp = __register_chrdev(major, 0U, 256U, name, fops) [L5884] return (tmp); VAL [\old(major)=108, \result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, fops={66:0}, fops={66:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, major=108, mp_protocol_compress=1, name={18:0}, name={18:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L7700] RET, EXPR register_chrdev(108U, "ppp", & ppp_device_fops) [L7700] err = register_chrdev(108U, "ppp", & ppp_device_fops) [L7702] COND FALSE !(err != 0) [L7710] CALL, EXPR __class_create(& __this_module, "ppp", & __key) [L10972] CALL, EXPR ldv_malloc(sizeof(struct class)) [L10957] COND TRUE __VERIFIER_nondet_bool() [L10957] return 0; VAL [\old(size)=128, \result={0:0}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, size=128] [L10972] RET, EXPR ldv_malloc(sizeof(struct class)) [L10972] return ldv_malloc(sizeof(struct class)); [L7710] RET, EXPR __class_create(& __this_module, "ppp", & __key) [L7710] tmp = __class_create(& __this_module, "ppp", & __key) [L7711] ppp_class = tmp [L7712] CALL, EXPR IS_ERR((void const *)ppp_class) [L5217] long tmp ; [L5220] tmp = __builtin_expect((long )((unsigned long )ptr > 0x0ffffffffffff000UL), 0L) [L5222] return (tmp); VAL [\result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, ptr={0:0}, ptr={0:0}, tmp=0] [L7712] RET, EXPR IS_ERR((void const *)ppp_class) [L7712] tmp___1 = IS_ERR((void const *)ppp_class) [L7714] COND FALSE !(tmp___1 != 0L) [L7725] return (0); [L7725] return (0); VAL [\result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp={0:0}, tmp___1=0] [L10650] RET, EXPR ppp_init() [L10650] tmp = ppp_init() [L10652] COND FALSE !(tmp != 0) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0] [L10784] tmp___1 = __VERIFIER_nondet_int() [L10786] COND TRUE tmp___1 != 0 VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___1=2147483648] [L10659] tmp___0 = __VERIFIER_nondet_int() [L10661] COND FALSE !(tmp___0 == 0) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10664] COND FALSE !(tmp___0 == 1) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10667] COND FALSE !(tmp___0 == 2) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10670] COND FALSE !(tmp___0 == 3) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10673] COND FALSE !(tmp___0 == 4) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10676] COND TRUE tmp___0 == 5 VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_ppp_device_fops_file_operations=0, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, tmp___0=5, tmp___1=2147483648] [L10753] CALL ppp_ioctl(var_group1, var_ppp_ioctl_9_p1, var_ppp_ioctl_9_p2) [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(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={72:0}, code___0={-9223372036854775735:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={9222809086364483584:64}, file={9222809086364483584:64}, idle={96:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={93:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={9222809086364483584:344}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6796] COND FALSE !((unsigned long )pf == (unsigned long )((struct ppp_file *)0)) VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={72:0}, code___0={-9223372036854775735:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967282, file={9222809086364483584:64}, file={9222809086364483584:64}, idle={96:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={93:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={9222809086364483584:344}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6804] COND TRUE cmd == 1074033724U [L6806] err = -22 [L6807] FCALL mutex_lock_nested(& ppp_mutex, 0U) [L6809] EXPR pf->kind VAL [\old(arg)=71, \old(cmd)=1074033724, __this_module={0:0}, arg=71, argp={0:71}, channel_count={62:0}, cmd=1074033724, code={72:0}, code___0={-9223372036854775735:0}, compressor_list={69:0}, compressor_list_lock={70:0}, err=4294967274, file={9222809086364483584:64}, file={9222809086364483584:64}, idle={96:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npi={93:0}, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, p={0:71}, pf={9222809086364483584:344}, pf->kind=0, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L6809] COND FALSE !((unsigned int )pf->kind == 1U) [L6821] CALL, EXPR atomic_long_read(& file->f_count) [L5267] atomic64_t *v ; [L5268] long tmp ; [L5271] v = l [L5272] CALL, EXPR atomic64_read((atomic64_t const *)v) [L5263] EXPR v->counter [L5263] return ((long )*((long volatile *)(& v->counter))); [L5272] RET, EXPR atomic64_read((atomic64_t const *)v) [L5272] tmp = atomic64_read((atomic64_t const *)v) [L5274] return (tmp); VAL [\result=0, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, l={9222809086364483584:176}, l={9222809086364483584:176}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=0, v={9222809086364483584:176}] [L6821] RET, EXPR atomic_long_read(& file->f_count) [L6821] tmp___2 = atomic_long_read(& file->f_count) [L6823] COND TRUE tmp___2 <= 2L [L6825] CALL ppp_release((struct inode *)0, file) [L6335] struct ppp_file *pf ; [L6336] struct ppp *ppp ; [L6337] struct ppp_file const *__mptr ; [L6338] struct ppp_file const *__mptr___0 ; [L6339] struct ppp_file const *__mptr___1 ; [L6340] int tmp ; [L6342] EXPR file->private_data [L6342] pf = (struct ppp_file *)file->private_data [L6343] COND TRUE (unsigned long )pf != (unsigned long )((struct ppp_file *)0) [L6344] file->private_data = (void *)0 [L6345] EXPR pf->kind VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={9222809086364483584:64}, file={9222809086364483584:64}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={9222809086364483584:344}, pf->kind=1, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}, unused={0:0}] [L6345] COND TRUE (unsigned int )pf->kind == 1U [L6346] __mptr = (struct ppp_file const *)pf [L6347] ppp = (struct ppp *)__mptr [L6348] EXPR ppp->owner VAL [__mptr={9222809086364483584:344}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={9222809086364483584:64}, file={9222809086364483584:64}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={9222809086364483584:344}, ppp={9222809086364483584:344}, ppp->owner={0:-9223372036854775808}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, unused={0:0}, unused={0:0}] [L6348] COND FALSE !((unsigned long )ppp->owner == (unsigned long )file) [L6357] CALL, EXPR atomic_dec_and_test(& pf->refcnt) [L5253] unsigned char c ; [L5257] return ((unsigned int )c != 0U); VAL [\result=1, __this_module={0:0}, c=2, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, v={9222809086364483584:608}, v={9222809086364483584:608}] [L6357] RET, EXPR atomic_dec_and_test(& pf->refcnt) [L6357] tmp = atomic_dec_and_test(& pf->refcnt) [L6359] COND TRUE tmp != 0 [L6360] EXPR pf->kind VAL [__mptr={9222809086364483584:344}, __this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, file={9222809086364483584:64}, file={9222809086364483584:64}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, pf={9222809086364483584:344}, pf->kind=1, ppp={9222809086364483584:344}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}, tmp=1, unused={0:0}, unused={0:0}] [L6360] COND TRUE (int )((unsigned int )pf->kind) == 1 [L6369] __mptr___0 = (struct ppp_file const *)pf [L6370] CALL ppp_destroy_interface((struct ppp *)__mptr___0) [L10292] FCALL atomic_dec(& ppp_unit_count) [L10294] EXPR ppp->file.dead VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={9222809086364483584:344}, ppp={9222809086364483584:344}, ppp->file.dead=-2147483648, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10294] COND FALSE !(ppp->file.dead == 0) [L10301] EXPR ppp->n_channels VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp={9222809086364483584:344}, ppp={9222809086364483584:344}, ppp->n_channels=0, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10301] COND FALSE !(ppp->n_channels != 0) [L10310] CALL ppp_ccp_closed(ppp) [L9952] void *xstate ; [L9953] void *rstate ; [L9954] struct compressor *xcomp ; [L9955] struct compressor *rcomp ; [L9958] CALL spin_lock_bh(& ppp->wlock) [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9958] RET spin_lock_bh(& ppp->wlock) [L9959] CALL spin_lock_bh(& ppp->rlock) [L5320] FCALL _raw_spin_lock_bh(& lock->ldv_6060.rlock) [L9959] RET spin_lock_bh(& ppp->rlock) [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 [L9969] CALL spin_unlock_bh(& ppp->rlock) [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9969] RET spin_unlock_bh(& ppp->rlock) [L9970] CALL spin_unlock_bh(& ppp->wlock) [L5338] FCALL _raw_spin_unlock_bh(& lock->ldv_6060.rlock) [L9970] RET spin_unlock_bh(& ppp->wlock) [L9972] COND TRUE (unsigned long )xstate != (unsigned long )((void *)0) [L9974] EXPR xcomp->comp_free [L9974] CALL (*(xcomp->comp_free))(xstate) [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 [L9974] RET (*(xcomp->comp_free))(xstate) [L9975] EXPR xcomp->owner [L9975] CALL ldv_module_put_5(xcomp->owner) [L10926] CALL ldv_module_put(ldv_func_arg1) [L10845] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={2305843009213693952:-9223371899415822336}, module={2305843009213693952:-9223371899415822336}, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] [L10846] COND TRUE ldv_module_refcounter <= 1 [L10848] CALL ldv_blast_assert() [L10809] reach_error() VAL [__this_module={0:0}, channel_count={62:0}, compressor_list={69:0}, compressor_list_lock={70:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, mp_protocol_compress=1, npindex_to_ethertype={65:0}, npindex_to_proto={64:0}, ppp_class={0:0}, ppp_device_fops={66:0}, ppp_mutex={60:0}, ppp_net_id={63:0}, ppp_net_ops={67:0}, ppp_netdev_ops={68:0}, ppp_unit_count={61:0}] - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 10809]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5101 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 295.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 236.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 73 mSolverCounterUnknown, 18322 SdHoareTripleChecker+Valid, 229.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18322 mSDsluCounter, 80132 SdHoareTripleChecker+Invalid, 221.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 15 IncrementalHoareTripleChecker+Unchecked, 53682 mSDsCounter, 162 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2839 IncrementalHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 162 mSolverCounterUnsat, 26450 mSDtfsCounter, 2839 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 312 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19034occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 5319 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 21.7s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 308 ConstructedInterpolants, 1 QuantifiedInterpolants, 741 SizeOfPredicates, 5 NumberOfNonLiveVariables, 5000 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 [2021-11-22 21:01:00,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample