./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a86e259c83ba45b1c49d177e1b075e49ba00372 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:40:40,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:40:40,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:40:40,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:40:40,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:40:40,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:40:40,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:40:40,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:40:40,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:40:40,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:40:40,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:40:40,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:40:40,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:40:40,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:40:40,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:40:40,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:40:40,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:40:40,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:40:40,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:40:40,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:40:40,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:40:40,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:40:40,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:40:40,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:40:40,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:40:40,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:40:40,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:40:40,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:40:40,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:40:40,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:40:40,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:40:40,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:40:40,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:40:40,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:40:40,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:40:40,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:40:40,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:40:40,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:40:40,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:40:40,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:40:40,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:40:40,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-12-07 18:40:40,342 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:40:40,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:40:40,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:40:40,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:40:40,343 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:40:40,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:40:40,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:40:40,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:40:40,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:40:40,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:40:40,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:40:40,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:40:40,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:40:40,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:40:40,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:40:40,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:40:40,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:40:40,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:40:40,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:40:40,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:40:40,346 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 8a86e259c83ba45b1c49d177e1b075e49ba00372 [2019-12-07 18:40:40,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:40:40,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:40:40,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:40:40,456 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:40:40,457 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:40:40,457 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-12-07 18:40:40,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/data/50ed2544e/c12879b6765644ccb4b6058b66b0e1f5/FLAGd8a33d679 [2019-12-07 18:40:40,980 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:40:40,980 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-12-07 18:40:41,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/data/50ed2544e/c12879b6765644ccb4b6058b66b0e1f5/FLAGd8a33d679 [2019-12-07 18:40:41,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/data/50ed2544e/c12879b6765644ccb4b6058b66b0e1f5 [2019-12-07 18:40:41,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:40:41,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:40:41,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:40:41,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:40:41,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:40:41,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:41,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a523291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41, skipping insertion in model container [2019-12-07 18:40:41,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:41,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:40:41,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:40:41,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:40:41,801 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:40:41,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:40:41,974 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:40:41,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41 WrapperNode [2019-12-07 18:40:41,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:40:41,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:40:41,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:40:41,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:40:41,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:40:42,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:40:42,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:40:42,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:40:42,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... [2019-12-07 18:40:42,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:40:42,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:40:42,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:40:42,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:40:42,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:40:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:40:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:40:43,057 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:40:43,057 INFO L287 CfgBuilder]: Removed 127 assume(true) statements. [2019-12-07 18:40:43,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:40:43 BoogieIcfgContainer [2019-12-07 18:40:43,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:40:43,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:40:43,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:40:43,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:40:43,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:40:41" (1/3) ... [2019-12-07 18:40:43,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6478d0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:40:43, skipping insertion in model container [2019-12-07 18:40:43,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:40:41" (2/3) ... [2019-12-07 18:40:43,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6478d0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:40:43, skipping insertion in model container [2019-12-07 18:40:43,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:40:43" (3/3) ... [2019-12-07 18:40:43,063 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-12-07 18:40:43,070 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:40:43,076 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-12-07 18:40:43,083 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-07 18:40:43,100 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:40:43,100 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:40:43,100 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:40:43,100 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:40:43,101 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:40:43,101 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:40:43,101 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:40:43,101 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:40:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-12-07 18:40:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 18:40:43,121 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:43,121 INFO L410 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] [2019-12-07 18:40:43,122 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:43,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:43,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1079717372, now seen corresponding path program 1 times [2019-12-07 18:40:43,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:43,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582362593] [2019-12-07 18:40:43,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:43,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582362593] [2019-12-07 18:40:43,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:43,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:40:43,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856953263] [2019-12-07 18:40:43,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:40:43,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:43,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:40:43,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:40:43,545 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 3 states. [2019-12-07 18:40:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:43,631 INFO L93 Difference]: Finished difference Result 366 states and 539 transitions. [2019-12-07 18:40:43,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:40:43,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-07 18:40:43,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:43,646 INFO L225 Difference]: With dead ends: 366 [2019-12-07 18:40:43,646 INFO L226 Difference]: Without dead ends: 217 [2019-12-07 18:40:43,650 INFO L630 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 [2019-12-07 18:40:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-12-07 18:40:43,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 203. [2019-12-07 18:40:43,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-12-07 18:40:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 290 transitions. [2019-12-07 18:40:43,699 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 290 transitions. Word has length 27 [2019-12-07 18:40:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:43,699 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 290 transitions. [2019-12-07 18:40:43,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:40:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 290 transitions. [2019-12-07 18:40:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 18:40:43,701 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:43,701 INFO L410 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] [2019-12-07 18:40:43,701 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:43,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:43,702 INFO L82 PathProgramCache]: Analyzing trace with hash -926810451, now seen corresponding path program 1 times [2019-12-07 18:40:43,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:43,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936998829] [2019-12-07 18:40:43,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:43,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936998829] [2019-12-07 18:40:43,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:43,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:40:43,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267794137] [2019-12-07 18:40:43,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:40:43,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:43,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:40:43,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:40:43,826 INFO L87 Difference]: Start difference. First operand 203 states and 290 transitions. Second operand 3 states. [2019-12-07 18:40:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:43,919 INFO L93 Difference]: Finished difference Result 544 states and 801 transitions. [2019-12-07 18:40:43,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:40:43,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-12-07 18:40:43,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:43,922 INFO L225 Difference]: With dead ends: 544 [2019-12-07 18:40:43,922 INFO L226 Difference]: Without dead ends: 359 [2019-12-07 18:40:43,924 INFO L630 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 [2019-12-07 18:40:43,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-12-07 18:40:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 355. [2019-12-07 18:40:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-12-07 18:40:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 522 transitions. [2019-12-07 18:40:43,949 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 522 transitions. Word has length 30 [2019-12-07 18:40:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:43,949 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 522 transitions. [2019-12-07 18:40:43,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:40:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 522 transitions. [2019-12-07 18:40:43,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-07 18:40:43,951 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:43,951 INFO L410 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] [2019-12-07 18:40:43,951 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:43,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:43,952 INFO L82 PathProgramCache]: Analyzing trace with hash -452402829, now seen corresponding path program 1 times [2019-12-07 18:40:43,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:43,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699878106] [2019-12-07 18:40:43,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:44,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699878106] [2019-12-07 18:40:44,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:44,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:40:44,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127758671] [2019-12-07 18:40:44,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:40:44,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:44,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:40:44,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:40:44,094 INFO L87 Difference]: Start difference. First operand 355 states and 522 transitions. Second operand 3 states. [2019-12-07 18:40:44,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:44,103 INFO L93 Difference]: Finished difference Result 355 states and 522 transitions. [2019-12-07 18:40:44,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:40:44,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-12-07 18:40:44,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:44,106 INFO L225 Difference]: With dead ends: 355 [2019-12-07 18:40:44,106 INFO L226 Difference]: Without dead ends: 353 [2019-12-07 18:40:44,107 INFO L630 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 [2019-12-07 18:40:44,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-12-07 18:40:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2019-12-07 18:40:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2019-12-07 18:40:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 520 transitions. [2019-12-07 18:40:44,123 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 520 transitions. Word has length 37 [2019-12-07 18:40:44,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:44,124 INFO L462 AbstractCegarLoop]: Abstraction has 353 states and 520 transitions. [2019-12-07 18:40:44,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:40:44,124 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 520 transitions. [2019-12-07 18:40:44,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 18:40:44,125 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:44,126 INFO L410 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] [2019-12-07 18:40:44,126 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:44,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1139579328, now seen corresponding path program 1 times [2019-12-07 18:40:44,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:44,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557317658] [2019-12-07 18:40:44,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:44,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557317658] [2019-12-07 18:40:44,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:44,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:40:44,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961027465] [2019-12-07 18:40:44,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:40:44,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:44,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:40:44,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:40:44,258 INFO L87 Difference]: Start difference. First operand 353 states and 520 transitions. Second operand 3 states. [2019-12-07 18:40:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:44,267 INFO L93 Difference]: Finished difference Result 353 states and 520 transitions. [2019-12-07 18:40:44,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:40:44,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-12-07 18:40:44,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:44,270 INFO L225 Difference]: With dead ends: 353 [2019-12-07 18:40:44,270 INFO L226 Difference]: Without dead ends: 351 [2019-12-07 18:40:44,271 INFO L630 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 [2019-12-07 18:40:44,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2019-12-07 18:40:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2019-12-07 18:40:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-12-07 18:40:44,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 518 transitions. [2019-12-07 18:40:44,283 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 518 transitions. Word has length 38 [2019-12-07 18:40:44,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:44,283 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 518 transitions. [2019-12-07 18:40:44,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:40:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 518 transitions. [2019-12-07 18:40:44,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-07 18:40:44,284 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:44,285 INFO L410 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] [2019-12-07 18:40:44,285 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:44,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:44,285 INFO L82 PathProgramCache]: Analyzing trace with hash -967214307, now seen corresponding path program 1 times [2019-12-07 18:40:44,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:44,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392760140] [2019-12-07 18:40:44,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:44,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392760140] [2019-12-07 18:40:44,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:44,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:40:44,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126856047] [2019-12-07 18:40:44,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:40:44,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:44,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:40:44,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:40:44,424 INFO L87 Difference]: Start difference. First operand 351 states and 518 transitions. Second operand 3 states. [2019-12-07 18:40:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:44,434 INFO L93 Difference]: Finished difference Result 351 states and 518 transitions. [2019-12-07 18:40:44,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:40:44,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-12-07 18:40:44,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:44,436 INFO L225 Difference]: With dead ends: 351 [2019-12-07 18:40:44,437 INFO L226 Difference]: Without dead ends: 349 [2019-12-07 18:40:44,437 INFO L630 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 [2019-12-07 18:40:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-07 18:40:44,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-07 18:40:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-07 18:40:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 516 transitions. [2019-12-07 18:40:44,450 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 516 transitions. Word has length 39 [2019-12-07 18:40:44,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:44,451 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 516 transitions. [2019-12-07 18:40:44,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:40:44,451 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 516 transitions. [2019-12-07 18:40:44,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 18:40:44,452 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:44,452 INFO L410 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] [2019-12-07 18:40:44,453 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:44,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:44,453 INFO L82 PathProgramCache]: Analyzing trace with hash 81134058, now seen corresponding path program 1 times [2019-12-07 18:40:44,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:44,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571627707] [2019-12-07 18:40:44,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:44,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571627707] [2019-12-07 18:40:44,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:44,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:40:44,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187877805] [2019-12-07 18:40:44,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:40:44,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:44,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:40:44,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:40:44,568 INFO L87 Difference]: Start difference. First operand 349 states and 516 transitions. Second operand 3 states. [2019-12-07 18:40:44,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:44,601 INFO L93 Difference]: Finished difference Result 1001 states and 1502 transitions. [2019-12-07 18:40:44,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:40:44,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-12-07 18:40:44,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:44,606 INFO L225 Difference]: With dead ends: 1001 [2019-12-07 18:40:44,606 INFO L226 Difference]: Without dead ends: 664 [2019-12-07 18:40:44,608 INFO L630 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 [2019-12-07 18:40:44,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2019-12-07 18:40:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 659. [2019-12-07 18:40:44,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-12-07 18:40:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 986 transitions. [2019-12-07 18:40:44,631 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 986 transitions. Word has length 40 [2019-12-07 18:40:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:44,631 INFO L462 AbstractCegarLoop]: Abstraction has 659 states and 986 transitions. [2019-12-07 18:40:44,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:40:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 986 transitions. [2019-12-07 18:40:44,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-12-07 18:40:44,632 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:44,632 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-12-07 18:40:44,632 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:44,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:44,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1376605001, now seen corresponding path program 1 times [2019-12-07 18:40:44,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:44,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432906487] [2019-12-07 18:40:44,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 18:40:44,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432906487] [2019-12-07 18:40:44,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:44,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:40:44,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598920985] [2019-12-07 18:40:44,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:40:44,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:44,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:40:44,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:40:44,724 INFO L87 Difference]: Start difference. First operand 659 states and 986 transitions. Second operand 3 states. [2019-12-07 18:40:44,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:44,796 INFO L93 Difference]: Finished difference Result 1300 states and 1953 transitions. [2019-12-07 18:40:44,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:40:44,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-12-07 18:40:44,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:44,800 INFO L225 Difference]: With dead ends: 1300 [2019-12-07 18:40:44,800 INFO L226 Difference]: Without dead ends: 659 [2019-12-07 18:40:44,801 INFO L630 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 [2019-12-07 18:40:44,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2019-12-07 18:40:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 658. [2019-12-07 18:40:44,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2019-12-07 18:40:44,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 981 transitions. [2019-12-07 18:40:44,817 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 981 transitions. Word has length 52 [2019-12-07 18:40:44,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:44,817 INFO L462 AbstractCegarLoop]: Abstraction has 658 states and 981 transitions. [2019-12-07 18:40:44,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:40:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 981 transitions. [2019-12-07 18:40:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 18:40:44,818 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:44,818 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-12-07 18:40:44,819 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:44,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1331921932, now seen corresponding path program 1 times [2019-12-07 18:40:44,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:44,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119783594] [2019-12-07 18:40:44,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 18:40:44,962 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119783594] [2019-12-07 18:40:44,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:44,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 18:40:44,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594454039] [2019-12-07 18:40:44,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:40:44,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:44,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:40:44,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:40:44,963 INFO L87 Difference]: Start difference. First operand 658 states and 981 transitions. Second operand 7 states. [2019-12-07 18:40:45,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:45,100 INFO L93 Difference]: Finished difference Result 2494 states and 3779 transitions. [2019-12-07 18:40:45,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:40:45,101 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2019-12-07 18:40:45,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:45,108 INFO L225 Difference]: With dead ends: 2494 [2019-12-07 18:40:45,109 INFO L226 Difference]: Without dead ends: 1854 [2019-12-07 18:40:45,110 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:40:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2019-12-07 18:40:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 659. [2019-12-07 18:40:45,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-12-07 18:40:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 981 transitions. [2019-12-07 18:40:45,142 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 981 transitions. Word has length 53 [2019-12-07 18:40:45,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:45,142 INFO L462 AbstractCegarLoop]: Abstraction has 659 states and 981 transitions. [2019-12-07 18:40:45,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:40:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 981 transitions. [2019-12-07 18:40:45,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 18:40:45,143 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:40:45,143 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:45,143 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:40:45,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:45,143 INFO L82 PathProgramCache]: Analyzing trace with hash 336433459, now seen corresponding path program 1 times [2019-12-07 18:40:45,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:45,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080512331] [2019-12-07 18:40:45,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:45,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 18:40:45,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080512331] [2019-12-07 18:40:45,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:40:45,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:40:45,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060575477] [2019-12-07 18:40:45,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:40:45,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:45,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:40:45,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:40:45,258 INFO L87 Difference]: Start difference. First operand 659 states and 981 transitions. Second operand 5 states. [2019-12-07 18:40:45,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:45,310 INFO L93 Difference]: Finished difference Result 946 states and 1424 transitions. [2019-12-07 18:40:45,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:40:45,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-12-07 18:40:45,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:40:45,310 INFO L225 Difference]: With dead ends: 946 [2019-12-07 18:40:45,311 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:40:45,311 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:40:45,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:40:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:40:45,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:40:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:40:45,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-12-07 18:40:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:40:45,312 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:40:45,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:40:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:40:45,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:40:45,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:40:45,901 INFO L246 CegarLoopResult]: For program point L6014(line 6014) no Hoare annotation was computed. [2019-12-07 18:40:45,901 INFO L246 CegarLoopResult]: For program point L6113(line 6113) no Hoare annotation was computed. [2019-12-07 18:40:45,901 INFO L246 CegarLoopResult]: For program point L6080(lines 6080 6084) no Hoare annotation was computed. [2019-12-07 18:40:45,901 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-12-07 18:40:45,902 INFO L242 CegarLoopResult]: At program point L6312(lines 1 7019) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,902 INFO L246 CegarLoopResult]: For program point L6114(lines 6114 6150) no Hoare annotation was computed. [2019-12-07 18:40:45,902 INFO L249 CegarLoopResult]: At program point L6213(lines 5965 6215) the Hoare annotation is: true [2019-12-07 18:40:45,902 INFO L246 CegarLoopResult]: For program point L6015(lines 6015 6030) no Hoare annotation was computed. [2019-12-07 18:40:45,902 INFO L242 CegarLoopResult]: At program point L7006(lines 7005 7007) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,902 INFO L242 CegarLoopResult]: At program point L5751(lines 5743 5753) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,902 INFO L242 CegarLoopResult]: At program point L5751-1(lines 5743 5753) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,903 INFO L242 CegarLoopResult]: At program point L5751-4(lines 5743 5753) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,903 INFO L242 CegarLoopResult]: At program point L5751-5(lines 5743 5753) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,903 INFO L242 CegarLoopResult]: At program point L5751-2(lines 5743 5753) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,903 INFO L242 CegarLoopResult]: At program point L5751-3(lines 5743 5753) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,903 INFO L242 CegarLoopResult]: At program point L5751-6(lines 5743 5753) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,903 INFO L246 CegarLoopResult]: For program point L6181(line 6181) no Hoare annotation was computed. [2019-12-07 18:40:45,904 INFO L242 CegarLoopResult]: At program point L6974(lines 6973 6975) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,904 INFO L246 CegarLoopResult]: For program point L6842(lines 6842 6845) no Hoare annotation was computed. [2019-12-07 18:40:45,904 INFO L242 CegarLoopResult]: At program point L6908(lines 1 7019) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,904 INFO L246 CegarLoopResult]: For program point L6842-1(lines 6842 6845) no Hoare annotation was computed. [2019-12-07 18:40:45,904 INFO L246 CegarLoopResult]: For program point L6050(line 6050) no Hoare annotation was computed. [2019-12-07 18:40:45,904 INFO L246 CegarLoopResult]: For program point L6116(lines 6116 6147) no Hoare annotation was computed. [2019-12-07 18:40:45,904 INFO L246 CegarLoopResult]: For program point L6017(lines 6017 6027) no Hoare annotation was computed. [2019-12-07 18:40:45,904 INFO L242 CegarLoopResult]: At program point L6282(lines 6277 6284) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_lock~0)) (.cse1 (= 1 ~ldv_mutex_i_mutex_of_inode~0)) (.cse2 (= 1 ~ldv_mutex_mutex_of_device~0))) (or (and .cse0 .cse1 (<= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res|) .cse2 (= 2 ~ldv_mutex_udev~0) (= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res|)) (and .cse0 (= 1 ~ldv_mutex_udev~0) .cse1 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| 1) 0) (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| 1) 0) .cse2 (<= (+ |ULTIMATE.start_ldv_undef_int_negative_#res| 1) 0) (<= (+ ULTIMATE.start_ldv_undef_int_negative_~ret~0 1) 0)))) [2019-12-07 18:40:45,904 INFO L246 CegarLoopResult]: For program point L6051(lines 6051 6111) no Hoare annotation was computed. [2019-12-07 18:40:45,905 INFO L246 CegarLoopResult]: For program point L6018(line 6018) no Hoare annotation was computed. [2019-12-07 18:40:45,905 INFO L246 CegarLoopResult]: For program point L6117(line 6117) no Hoare annotation was computed. [2019-12-07 18:40:45,905 INFO L246 CegarLoopResult]: For program point L6118(lines 6118 6123) no Hoare annotation was computed. [2019-12-07 18:40:45,905 INFO L246 CegarLoopResult]: For program point L6019(lines 6019 6023) no Hoare annotation was computed. [2019-12-07 18:40:45,905 INFO L242 CegarLoopResult]: At program point L7010(lines 7009 7011) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,905 INFO L246 CegarLoopResult]: For program point L6086(line 6086) no Hoare annotation was computed. [2019-12-07 18:40:45,905 INFO L246 CegarLoopResult]: For program point L6152(line 6152) no Hoare annotation was computed. [2019-12-07 18:40:45,905 INFO L242 CegarLoopResult]: At program point L6978(lines 6977 6979) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6053(lines 6053 6108) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6318(line 6318) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6318-4(line 6318) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6318-3(line 6318) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6318-2(line 6318) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6318-1(line 6318) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6087(lines 6087 6094) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6054(line 6054) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6153(lines 6153 6168) no Hoare annotation was computed. [2019-12-07 18:40:45,906 INFO L246 CegarLoopResult]: For program point L6318-5(line 6318) no Hoare annotation was computed. [2019-12-07 18:40:45,907 INFO L242 CegarLoopResult]: At program point L6847(lines 6839 6849) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (= 2 ~ldv_mutex_udev~0)) [2019-12-07 18:40:45,907 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-12-07 18:40:45,907 INFO L246 CegarLoopResult]: For program point L6055(lines 6055 6063) no Hoare annotation was computed. [2019-12-07 18:40:45,907 INFO L246 CegarLoopResult]: For program point L6155(lines 6155 6165) no Hoare annotation was computed. [2019-12-07 18:40:45,907 INFO L246 CegarLoopResult]: For program point L6188(line 6188) no Hoare annotation was computed. [2019-12-07 18:40:45,907 INFO L242 CegarLoopResult]: At program point L7014(lines 7013 7015) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,907 INFO L246 CegarLoopResult]: For program point L6089(lines 6089 6092) no Hoare annotation was computed. [2019-12-07 18:40:45,907 INFO L242 CegarLoopResult]: At program point L5759(lines 5754 5761) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,907 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-12-07 18:40:45,908 INFO L246 CegarLoopResult]: For program point L6189(lines 6189 6204) no Hoare annotation was computed. [2019-12-07 18:40:45,908 INFO L246 CegarLoopResult]: For program point L6156(line 6156) no Hoare annotation was computed. [2019-12-07 18:40:45,908 INFO L246 CegarLoopResult]: For program point L6057(lines 6057 6061) no Hoare annotation was computed. [2019-12-07 18:40:45,908 INFO L242 CegarLoopResult]: At program point L5826(lines 5823 5828) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,908 INFO L242 CegarLoopResult]: At program point L5826-3(lines 5823 5828) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,908 INFO L242 CegarLoopResult]: At program point L5826-1(lines 5823 5828) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,908 INFO L242 CegarLoopResult]: At program point L5826-2(lines 5823 5828) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,908 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6157(lines 6157 6161) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6025(line 6025) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6191(lines 6191 6201) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6125(line 6125) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6951(lines 6950 6968) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6126(lines 6126 6143) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6192(line 6192) no Hoare annotation was computed. [2019-12-07 18:40:45,909 INFO L246 CegarLoopResult]: For program point L6193(lines 6193 6197) no Hoare annotation was computed. [2019-12-07 18:40:45,910 INFO L242 CegarLoopResult]: At program point L5962(lines 5956 5964) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,910 INFO L246 CegarLoopResult]: For program point L6128-2(lines 6126 6142) no Hoare annotation was computed. [2019-12-07 18:40:45,910 INFO L246 CegarLoopResult]: For program point L6128(lines 6128 6136) no Hoare annotation was computed. [2019-12-07 18:40:45,910 INFO L246 CegarLoopResult]: For program point L6096(line 6096) no Hoare annotation was computed. [2019-12-07 18:40:45,910 INFO L246 CegarLoopResult]: For program point L6955(lines 6950 6968) no Hoare annotation was computed. [2019-12-07 18:40:45,910 INFO L246 CegarLoopResult]: For program point L6163(line 6163) no Hoare annotation was computed. [2019-12-07 18:40:45,910 INFO L246 CegarLoopResult]: For program point L6097(lines 6097 6104) no Hoare annotation was computed. [2019-12-07 18:40:45,910 INFO L242 CegarLoopResult]: At program point L5767(lines 5762 5769) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,910 INFO L242 CegarLoopResult]: At program point L5767-1(lines 5762 5769) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,910 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6329-1(lines 6329 6332) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6329(lines 6329 6332) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6065(line 6065) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6032(line 6032) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6099(lines 6099 6102) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6066(lines 6066 6071) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L242 CegarLoopResult]: At program point L6991(lines 6990 6992) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6033(lines 6033 6048) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6066-2(lines 6053 6108) no Hoare annotation was computed. [2019-12-07 18:40:45,911 INFO L246 CegarLoopResult]: For program point L6199(line 6199) no Hoare annotation was computed. [2019-12-07 18:40:45,912 INFO L246 CegarLoopResult]: For program point L6959(lines 6950 6968) no Hoare annotation was computed. [2019-12-07 18:40:45,912 INFO L246 CegarLoopResult]: For program point L6035(lines 6035 6045) no Hoare annotation was computed. [2019-12-07 18:40:45,912 INFO L242 CegarLoopResult]: At program point L6333(lines 6322 6335) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0) (<= (+ |ULTIMATE.start_ldv_undef_int_negative_#res| 1) 0) (<= (+ ULTIMATE.start_ldv_undef_int_negative_~ret~0 1) 0)) [2019-12-07 18:40:45,912 INFO L246 CegarLoopResult]: For program point L6036(line 6036) no Hoare annotation was computed. [2019-12-07 18:40:45,912 INFO L246 CegarLoopResult]: For program point L5838(lines 5838 5841) no Hoare annotation was computed. [2019-12-07 18:40:45,912 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,912 INFO L242 CegarLoopResult]: At program point L6995(lines 6994 6996) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,912 INFO L246 CegarLoopResult]: For program point L6037(lines 6037 6041) no Hoare annotation was computed. [2019-12-07 18:40:45,912 INFO L246 CegarLoopResult]: For program point L6170(line 6170) no Hoare annotation was computed. [2019-12-07 18:40:45,913 INFO L242 CegarLoopResult]: At program point L5939(lines 5934 5941) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,913 INFO L249 CegarLoopResult]: At program point L6963(lines 6948 6969) the Hoare annotation is: true [2019-12-07 18:40:45,913 INFO L246 CegarLoopResult]: For program point L6171(lines 6171 6186) no Hoare annotation was computed. [2019-12-07 18:40:45,913 INFO L242 CegarLoopResult]: At program point L6304(lines 6293 6306) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,913 INFO L242 CegarLoopResult]: At program point L6139(lines 6951 6954) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,913 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,913 INFO L246 CegarLoopResult]: For program point L6106(line 6106) no Hoare annotation was computed. [2019-12-07 18:40:45,913 INFO L246 CegarLoopResult]: For program point L6932(lines 6932 6938) no Hoare annotation was computed. [2019-12-07 18:40:45,913 INFO L246 CegarLoopResult]: For program point L6206(line 6206) no Hoare annotation was computed. [2019-12-07 18:40:45,913 INFO L246 CegarLoopResult]: For program point L6173(lines 6173 6183) no Hoare annotation was computed. [2019-12-07 18:40:45,914 INFO L242 CegarLoopResult]: At program point L6999(lines 6998 7000) the Hoare annotation is: (and (<= 0 ULTIMATE.start_m5632_recover_~r~0) (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (<= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res|) (= 1 ~ldv_mutex_mutex_of_device~0) (= 2 ~ldv_mutex_udev~0) (= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res|)) [2019-12-07 18:40:45,914 INFO L246 CegarLoopResult]: For program point L6174(line 6174) no Hoare annotation was computed. [2019-12-07 18:40:45,914 INFO L246 CegarLoopResult]: For program point L6175(lines 6175 6179) no Hoare annotation was computed. [2019-12-07 18:40:45,914 INFO L246 CegarLoopResult]: For program point L6043(line 6043) no Hoare annotation was computed. [2019-12-07 18:40:45,914 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,914 INFO L242 CegarLoopResult]: At program point L6209(lines 5988 6214) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,914 INFO L246 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,914 INFO L246 CegarLoopResult]: For program point L-1-2(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,914 INFO L242 CegarLoopResult]: At program point L7002(lines 7001 7003) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point L-1-3(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point L-1-4(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point L-1-5(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point L-1-6(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point L6903-1(lines 6903 6906) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6319) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point L6903(lines 6903 6906) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L242 CegarLoopResult]: At program point L-1-8(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= ~ldv_state_variable_6~0 0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,915 INFO L246 CegarLoopResult]: For program point L-1-9(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,915 INFO L242 CegarLoopResult]: At program point L7002-1(lines 7001 7003) the Hoare annotation is: (and (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_udev~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (= 1 ~ldv_mutex_mutex_of_device~0)) [2019-12-07 18:40:45,916 INFO L246 CegarLoopResult]: For program point L-1-10(line -1) no Hoare annotation was computed. [2019-12-07 18:40:45,916 INFO L242 CegarLoopResult]: At program point L6937(lines 6926 6940) the Hoare annotation is: (let ((.cse0 (= 1 ~ldv_mutex_lock~0)) (.cse1 (= 1 ~ldv_mutex_i_mutex_of_inode~0)) (.cse2 (= 1 ~ldv_mutex_mutex_of_device~0))) (or (and .cse0 .cse1 .cse2 (= 2 ~ldv_mutex_udev~0) (= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res|)) (and .cse0 (= 1 ~ldv_mutex_udev~0) .cse1 (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| 1) 0) .cse2 (<= (+ |ULTIMATE.start_ldv_undef_int_negative_#res| 1) 0) (<= (+ ULTIMATE.start_ldv_undef_int_negative_~ret~0 1) 0)))) [2019-12-07 18:40:45,916 INFO L249 CegarLoopResult]: At program point L5781-2(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,916 INFO L249 CegarLoopResult]: At program point L5781-3(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,916 INFO L249 CegarLoopResult]: At program point L5781(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,916 INFO L249 CegarLoopResult]: At program point L5781-1(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,916 INFO L249 CegarLoopResult]: At program point L5781-6(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,916 INFO L249 CegarLoopResult]: At program point L5781-7(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,916 INFO L249 CegarLoopResult]: At program point L5781-4(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,917 INFO L249 CegarLoopResult]: At program point L5781-5(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,917 INFO L249 CegarLoopResult]: At program point L5781-8(lines 5780 5783) the Hoare annotation is: true [2019-12-07 18:40:45,917 INFO L246 CegarLoopResult]: For program point L6079(line 6079) no Hoare annotation was computed. [2019-12-07 18:40:45,917 INFO L246 CegarLoopResult]: For program point L6145(line 6145) no Hoare annotation was computed. [2019-12-07 18:40:45,917 INFO L242 CegarLoopResult]: At program point L6971(lines 6970 6972) the Hoare annotation is: (and (<= 0 ULTIMATE.start_m5632_recover_~r~0) (= 1 ~ldv_mutex_lock~0) (= 1 ~ldv_mutex_i_mutex_of_inode~0) (<= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res|) (= 1 ~ldv_mutex_mutex_of_device~0) (= 2 ~ldv_mutex_udev~0) (= 0 |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res|)) [2019-12-07 18:40:45,917 INFO L246 CegarLoopResult]: For program point L6013(lines 6013 6208) no Hoare annotation was computed. [2019-12-07 18:40:45,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:40:45 BoogieIcfgContainer [2019-12-07 18:40:45,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:40:45,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:40:45,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:40:45,948 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:40:45,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:40:43" (3/4) ... [2019-12-07 18:40:45,952 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:40:45,977 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2019-12-07 18:40:45,979 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-12-07 18:40:45,982 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:40:45,984 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:40:45,986 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:40:46,023 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == ldv_mutex_lock && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) || ((((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && \result + 1 <= 0) && ret + 1 <= 0) [2019-12-07 18:40:46,024 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == ldv_mutex_lock && 1 == ldv_mutex_i_mutex_of_inode) && 0 <= \result) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) || (((((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && \result + 1 <= 0) && ret + 1 <= 0) [2019-12-07 18:40:46,024 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && \result + 1 <= 0) && ret + 1 <= 0 [2019-12-07 18:40:46,024 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 <= r && 1 == ldv_mutex_lock) && 1 == ldv_mutex_i_mutex_of_inode) && 0 <= \result) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result [2019-12-07 18:40:46,024 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 <= r && 1 == ldv_mutex_lock) && 1 == ldv_mutex_i_mutex_of_inode) && 0 <= \result) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result [2019-12-07 18:40:46,204 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_149c7ae0-83ac-4ea9-bcd4-ae4800494b7f/bin/uautomizer/witness.graphml [2019-12-07 18:40:46,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:40:46,206 INFO L168 Benchmark]: Toolchain (without parser) took 5192.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 932.6 MB in the beginning and 858.1 MB in the end (delta: 74.5 MB). Peak memory consumption was 258.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:46,206 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:40:46,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 961.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 932.6 MB in the beginning and 999.1 MB in the end (delta: -66.5 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:46,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.03 ms. Allocated memory is still 1.1 GB. Free memory was 999.1 MB in the beginning and 988.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:46,207 INFO L168 Benchmark]: Boogie Preprocessor took 77.73 ms. Allocated memory is still 1.1 GB. Free memory was 988.3 MB in the beginning and 977.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:46,207 INFO L168 Benchmark]: RCFGBuilder took 909.43 ms. Allocated memory is still 1.1 GB. Free memory was 977.6 MB in the beginning and 1.0 GB in the end (delta: -39.4 MB). Peak memory consumption was 160.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:46,208 INFO L168 Benchmark]: TraceAbstraction took 2888.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -15.5 MB). Peak memory consumption was 279.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:46,208 INFO L168 Benchmark]: Witness Printer took 256.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 858.1 MB in the end (delta: 174.4 MB). Peak memory consumption was 174.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:46,209 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 961.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 932.6 MB in the beginning and 999.1 MB in the end (delta: -66.5 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.03 ms. Allocated memory is still 1.1 GB. Free memory was 999.1 MB in the beginning and 988.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.73 ms. Allocated memory is still 1.1 GB. Free memory was 988.3 MB in the beginning and 977.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 909.43 ms. Allocated memory is still 1.1 GB. Free memory was 977.6 MB in the beginning and 1.0 GB in the end (delta: -39.4 MB). Peak memory consumption was 160.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2888.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -15.5 MB). Peak memory consumption was 279.4 MB. Max. memory is 11.5 GB. * Witness Printer took 256.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 858.1 MB in the end (delta: 174.4 MB). Peak memory consumption was 174.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6319]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 5988]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 6293]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_0 == 1) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 6839]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev - InvariantResult [Line: 6277]: Loop Invariant Derived loop invariant: (((((1 == ldv_mutex_lock && 1 == ldv_mutex_i_mutex_of_inode) && 0 <= \result) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) || (((((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && \result + 1 <= 0) && ret + 1 <= 0) - InvariantResult [Line: 5956]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_0 == 1) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5754]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 6926]: Loop Invariant Derived loop invariant: ((((1 == ldv_mutex_lock && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result) || ((((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && \result + 1 <= 0) && 1 == ldv_mutex_mutex_of_device) && \result + 1 <= 0) && ret + 1 <= 0) - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6998]: Loop Invariant Derived loop invariant: (((((0 <= r && 1 == ldv_mutex_lock) && 1 == ldv_mutex_i_mutex_of_inode) && 0 <= \result) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result - InvariantResult [Line: 7009]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5762]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5743]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 7013]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5743]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5934]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_0 == 1) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5965]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5743]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 6948]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6973]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5762]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5743]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_0 == 1) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5743]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5823]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7001]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5823]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5743]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5823]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5743]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5823]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 6977]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6970]: Loop Invariant Derived loop invariant: (((((0 <= r && 1 == ldv_mutex_lock) && 1 == ldv_mutex_i_mutex_of_inode) && 0 <= \result) && 1 == ldv_mutex_mutex_of_device) && 2 == ldv_mutex_udev) && 0 == \result - InvariantResult [Line: 6951]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6990]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7001]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_6 == 0) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 6994]: Loop Invariant Derived loop invariant: (((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && ldv_state_variable_0 == 1) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 7005]: Loop Invariant Derived loop invariant: ((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6322]: Loop Invariant Derived loop invariant: ((((1 == ldv_mutex_lock && 1 == ldv_mutex_udev) && 1 == ldv_mutex_i_mutex_of_inode) && 1 == ldv_mutex_mutex_of_device) && \result + 1 <= 0) && ret + 1 <= 0 - InvariantResult [Line: 5780]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 6 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 2093 SDtfs, 2504 SDslu, 2768 SDs, 0 SdLazy, 88 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1219 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 48 PreInvPairs, 203 NumberOfFragments, 634 HoareAnnotationTreeSize, 48 FomulaSimplifications, 10313 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 48 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 29377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...