./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 04:27:02,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 04:27:02,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 04:27:02,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 04:27:02,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 04:27:02,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 04:27:02,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 04:27:02,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 04:27:02,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 04:27:02,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 04:27:02,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 04:27:02,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 04:27:02,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 04:27:02,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 04:27:02,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 04:27:02,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 04:27:02,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 04:27:02,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 04:27:02,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 04:27:02,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 04:27:02,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 04:27:02,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 04:27:02,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 04:27:02,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 04:27:02,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 04:27:02,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 04:27:02,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 04:27:02,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 04:27:02,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 04:27:02,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 04:27:02,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 04:27:02,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 04:27:02,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 04:27:02,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 04:27:02,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 04:27:02,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 04:27:02,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 04:27:02,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 04:27:02,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 04:27:02,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 04:27:02,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 04:27:02,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 04:27:02,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 04:27:02,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 04:27:02,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 04:27:02,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 04:27:02,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 04:27:02,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 04:27:02,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 04:27:02,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 04:27:02,304 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 04:27:02,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 04:27:02,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 04:27:02,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 04:27:02,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 04:27:02,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 04:27:02,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 04:27:02,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 04:27:02,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 04:27:02,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 04:27:02,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 04:27:02,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 04:27:02,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 04:27:02,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:27:02,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 04:27:02,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 04:27:02,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 04:27:02,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 04:27:02,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 04:27:02,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 04:27:02,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 04:27:02,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 04:27:02,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 04:27:02,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 [2021-12-18 04:27:02,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 04:27:02,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 04:27:02,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 04:27:02,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 04:27:02,546 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 04:27:02,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-18 04:27:02,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a4b9c2e/e8a47aa5b8154df5ba3cbc79cfee53d3/FLAGbc80f07f0 [2021-12-18 04:27:03,260 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 04:27:03,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-18 04:27:03,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a4b9c2e/e8a47aa5b8154df5ba3cbc79cfee53d3/FLAGbc80f07f0 [2021-12-18 04:27:03,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a4b9c2e/e8a47aa5b8154df5ba3cbc79cfee53d3 [2021-12-18 04:27:03,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 04:27:03,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 04:27:03,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 04:27:03,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 04:27:03,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 04:27:03,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:27:03" (1/1) ... [2021-12-18 04:27:03,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dffb702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:03, skipping insertion in model container [2021-12-18 04:27:03,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:27:03" (1/1) ... [2021-12-18 04:27:03,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 04:27:03,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:27:04,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2021-12-18 04:27:06,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:27:06,145 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 04:27:06,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2021-12-18 04:27:06,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:27:06,574 INFO L208 MainTranslator]: Completed translation [2021-12-18 04:27:06,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06 WrapperNode [2021-12-18 04:27:06,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 04:27:06,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 04:27:06,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 04:27:06,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 04:27:06,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:06,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:06,844 INFO L137 Inliner]: procedures = 382, calls = 4296, calls flagged for inlining = 180, calls inlined = 177, statements flattened = 8043 [2021-12-18 04:27:06,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 04:27:06,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 04:27:06,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 04:27:06,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 04:27:06,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:06,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:06,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:06,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:07,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:07,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:07,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:07,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 04:27:07,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 04:27:07,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 04:27:07,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 04:27:07,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (1/1) ... [2021-12-18 04:27:07,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:27:07,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:27:07,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 04:27:07,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 04:27:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-12-18 04:27:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-12-18 04:27:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2021-12-18 04:27:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2021-12-18 04:27:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-12-18 04:27:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-12-18 04:27:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 04:27:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 04:27:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-12-18 04:27:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-12-18 04:27:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-12-18 04:27:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-12-18 04:27:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-12-18 04:27:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-12-18 04:27:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 04:27:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 04:27:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2021-12-18 04:27:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2021-12-18 04:27:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 04:27:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 04:27:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 04:27:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 04:27:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-12-18 04:27:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-12-18 04:27:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-18 04:27:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-18 04:27:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2021-12-18 04:27:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2021-12-18 04:27:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2021-12-18 04:27:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2021-12-18 04:27:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2021-12-18 04:27:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2021-12-18 04:27:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 04:27:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 04:27:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-12-18 04:27:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-12-18 04:27:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2021-12-18 04:27:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2021-12-18 04:27:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-12-18 04:27:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-12-18 04:27:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2021-12-18 04:27:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2021-12-18 04:27:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2021-12-18 04:27:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2021-12-18 04:27:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-12-18 04:27:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-12-18 04:27:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-12-18 04:27:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-12-18 04:27:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-12-18 04:27:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-12-18 04:27:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2021-12-18 04:27:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2021-12-18 04:27:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-18 04:27:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-18 04:27:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2021-12-18 04:27:07,243 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2021-12-18 04:27:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-18 04:27:07,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-18 04:27:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2021-12-18 04:27:07,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2021-12-18 04:27:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 04:27:07,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 04:27:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 04:27:07,244 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 04:27:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 04:27:07,245 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 04:27:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-12-18 04:27:07,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-12-18 04:27:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 04:27:07,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 04:27:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-12-18 04:27:07,245 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-12-18 04:27:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 04:27:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 04:27:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-12-18 04:27:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-12-18 04:27:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2021-12-18 04:27:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2021-12-18 04:27:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 04:27:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 04:27:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 04:27:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 04:27:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 04:27:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 04:27:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-12-18 04:27:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-12-18 04:27:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-12-18 04:27:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-12-18 04:27:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 04:27:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-12-18 04:27:07,248 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-12-18 04:27:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-12-18 04:27:07,248 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-12-18 04:27:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-12-18 04:27:07,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-12-18 04:27:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 04:27:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2021-12-18 04:27:07,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2021-12-18 04:27:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-18 04:27:07,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-18 04:27:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-12-18 04:27:07,250 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-12-18 04:27:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-12-18 04:27:07,250 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-12-18 04:27:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-18 04:27:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-12-18 04:27:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-12-18 04:27:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 04:27:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 04:27:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 04:27:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 04:27:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 04:27:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 04:27:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-12-18 04:27:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-12-18 04:27:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2021-12-18 04:27:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2021-12-18 04:27:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-12-18 04:27:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-12-18 04:27:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 04:27:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 04:27:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_14 [2021-12-18 04:27:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_14 [2021-12-18 04:27:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 04:27:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 04:27:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-12-18 04:27:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-12-18 04:27:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-12-18 04:27:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-12-18 04:27:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 04:27:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 04:27:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 04:27:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-12-18 04:27:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-12-18 04:27:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 04:27:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 04:27:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 04:27:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 04:27:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-12-18 04:27:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-12-18 04:27:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 04:27:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-12-18 04:27:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-12-18 04:27:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-12-18 04:27:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-12-18 04:27:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2021-12-18 04:27:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2021-12-18 04:27:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 04:27:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 04:27:07,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 04:27:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-12-18 04:27:07,263 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-12-18 04:27:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-12-18 04:27:07,263 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-12-18 04:27:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 04:27:07,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 04:27:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-18 04:27:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-18 04:27:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-18 04:27:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-18 04:27:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-12-18 04:27:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-12-18 04:27:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2021-12-18 04:27:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2021-12-18 04:27:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-12-18 04:27:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-12-18 04:27:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-18 04:27:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-18 04:27:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-12-18 04:27:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-12-18 04:27:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-12-18 04:27:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-12-18 04:27:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-12-18 04:27:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-12-18 04:27:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 04:27:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 04:27:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 04:27:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 04:27:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 04:27:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-12-18 04:27:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-12-18 04:27:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-12-18 04:27:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-12-18 04:27:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-12-18 04:27:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-12-18 04:27:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 04:27:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 04:27:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-12-18 04:27:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-12-18 04:27:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-12-18 04:27:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-12-18 04:27:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-12-18 04:27:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-12-18 04:27:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-12-18 04:27:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2021-12-18 04:27:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2021-12-18 04:27:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 04:27:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 04:27:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 04:27:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 04:27:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-18 04:27:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-18 04:27:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-12-18 04:27:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-12-18 04:27:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 04:27:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 04:27:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 04:27:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 04:27:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 04:27:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2021-12-18 04:27:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2021-12-18 04:27:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 04:27:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 04:27:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-18 04:27:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-18 04:27:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-12-18 04:27:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-12-18 04:27:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2021-12-18 04:27:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2021-12-18 04:27:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-18 04:27:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-18 04:27:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2021-12-18 04:27:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2021-12-18 04:27:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-12-18 04:27:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-12-18 04:27:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-12-18 04:27:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-12-18 04:27:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 04:27:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 04:27:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 04:27:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 04:27:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 04:27:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 04:27:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-12-18 04:27:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-12-18 04:27:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-12-18 04:27:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-12-18 04:27:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2021-12-18 04:27:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2021-12-18 04:27:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-12-18 04:27:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-12-18 04:27:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-12-18 04:27:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-12-18 04:27:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-12-18 04:27:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-12-18 04:27:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 04:27:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-12-18 04:27:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-12-18 04:27:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2021-12-18 04:27:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2021-12-18 04:27:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2021-12-18 04:27:07,276 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2021-12-18 04:27:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-12-18 04:27:07,276 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-12-18 04:27:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-12-18 04:27:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-12-18 04:27:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-18 04:27:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-18 04:27:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-12-18 04:27:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 04:27:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 04:27:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-18 04:27:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-18 04:27:08,028 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 04:27:08,031 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 04:27:08,330 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 04:27:13,198 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 04:27:13,224 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 04:27:13,225 INFO L301 CfgBuilder]: Removed 81 assume(true) statements. [2021-12-18 04:27:13,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:27:13 BoogieIcfgContainer [2021-12-18 04:27:13,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 04:27:13,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 04:27:13,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 04:27:13,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 04:27:13,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:27:03" (1/3) ... [2021-12-18 04:27:13,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4b257f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:27:13, skipping insertion in model container [2021-12-18 04:27:13,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:27:06" (2/3) ... [2021-12-18 04:27:13,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4b257f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:27:13, skipping insertion in model container [2021-12-18 04:27:13,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:27:13" (3/3) ... [2021-12-18 04:27:13,238 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-18 04:27:13,242 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 04:27:13,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 04:27:13,294 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 04:27:13,301 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 04:27:13,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 04:27:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 3635 states, 2087 states have (on average 1.3143267848586488) internal successors, (2743), 2242 states have internal predecessors, (2743), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) [2021-12-18 04:27:13,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-18 04:27:13,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:27:13,384 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:27:13,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:27:13,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:27:13,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1146511857, now seen corresponding path program 1 times [2021-12-18 04:27:13,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:27:13,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058625920] [2021-12-18 04:27:13,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:27:13,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:27:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:13,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:27:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:27:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:27:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:27:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:14,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:27:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:27:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:27:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:27:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:14,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 04:27:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-12-18 04:27:14,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:27:14,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058625920] [2021-12-18 04:27:14,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058625920] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:27:14,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:27:14,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:27:14,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618769153] [2021-12-18 04:27:14,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:27:14,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:27:14,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:27:14,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:27:14,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:27:14,108 INFO L87 Difference]: Start difference. First operand has 3635 states, 2087 states have (on average 1.3143267848586488) internal successors, (2743), 2242 states have internal predecessors, (2743), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-18 04:27:20,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:24,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:27:35,335 INFO L93 Difference]: Finished difference Result 10779 states and 17210 transitions. [2021-12-18 04:27:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 04:27:35,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 78 [2021-12-18 04:27:35,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:27:35,405 INFO L225 Difference]: With dead ends: 10779 [2021-12-18 04:27:35,406 INFO L226 Difference]: Without dead ends: 7107 [2021-12-18 04:27:35,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:27:35,439 INFO L933 BasicCegarLoop]: 4725 mSDtfsCounter, 7648 mSDsluCounter, 6221 mSDsCounter, 0 mSdLazyCounter, 6651 mSolverCounterSat, 10822 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8149 SdHoareTripleChecker+Valid, 10946 SdHoareTripleChecker+Invalid, 17474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10822 IncrementalHoareTripleChecker+Valid, 6651 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2021-12-18 04:27:35,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8149 Valid, 10946 Invalid, 17474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10822 Valid, 6651 Invalid, 1 Unknown, 0 Unchecked, 20.2s Time] [2021-12-18 04:27:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2021-12-18 04:27:35,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 6695. [2021-12-18 04:27:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6695 states, 3651 states have (on average 1.301287318542865) internal successors, (4751), 3791 states have internal predecessors, (4751), 2803 states have call successors, (2803), 241 states have call predecessors, (2803), 240 states have return successors, (2802), 2732 states have call predecessors, (2802), 2802 states have call successors, (2802) [2021-12-18 04:27:35,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6695 states to 6695 states and 10356 transitions. [2021-12-18 04:27:35,959 INFO L78 Accepts]: Start accepts. Automaton has 6695 states and 10356 transitions. Word has length 78 [2021-12-18 04:27:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:27:35,960 INFO L470 AbstractCegarLoop]: Abstraction has 6695 states and 10356 transitions. [2021-12-18 04:27:35,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-18 04:27:35,963 INFO L276 IsEmpty]: Start isEmpty. Operand 6695 states and 10356 transitions. [2021-12-18 04:27:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-18 04:27:35,970 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:27:35,970 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:27:35,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 04:27:35,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:27:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:27:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash 673830489, now seen corresponding path program 1 times [2021-12-18 04:27:35,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:27:35,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661855319] [2021-12-18 04:27:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:27:35,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:27:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:27:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:27:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:27:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:27:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:27:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:27:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:27:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:27:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 04:27:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-12-18 04:27:36,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:27:36,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661855319] [2021-12-18 04:27:36,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661855319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:27:36,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:27:36,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:27:36,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018127297] [2021-12-18 04:27:36,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:27:36,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:27:36,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:27:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:27:36,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:27:36,446 INFO L87 Difference]: Start difference. First operand 6695 states and 10356 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 04:27:40,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:42,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:43,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:48,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:49,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:52,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:28:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:28:08,618 INFO L93 Difference]: Finished difference Result 20832 states and 32567 transitions. [2021-12-18 04:28:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 04:28:08,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2021-12-18 04:28:08,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:28:08,724 INFO L225 Difference]: With dead ends: 20832 [2021-12-18 04:28:08,724 INFO L226 Difference]: Without dead ends: 14154 [2021-12-18 04:28:08,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:28:08,774 INFO L933 BasicCegarLoop]: 5162 mSDtfsCounter, 7492 mSDsluCounter, 15621 mSDsCounter, 0 mSdLazyCounter, 12284 mSolverCounterSat, 10465 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7974 SdHoareTripleChecker+Valid, 20783 SdHoareTripleChecker+Invalid, 22751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10465 IncrementalHoareTripleChecker+Valid, 12284 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:28:08,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7974 Valid, 20783 Invalid, 22751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10465 Valid, 12284 Invalid, 2 Unknown, 0 Unchecked, 31.0s Time] [2021-12-18 04:28:08,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14154 states. [2021-12-18 04:28:09,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14154 to 13488. [2021-12-18 04:28:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13488 states, 7373 states have (on average 1.3025905330259053) internal successors, (9604), 7673 states have internal predecessors, (9604), 5616 states have call successors, (5616), 481 states have call predecessors, (5616), 498 states have return successors, (5782), 5487 states have call predecessors, (5782), 5615 states have call successors, (5782) [2021-12-18 04:28:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13488 states to 13488 states and 21002 transitions. [2021-12-18 04:28:09,578 INFO L78 Accepts]: Start accepts. Automaton has 13488 states and 21002 transitions. Word has length 81 [2021-12-18 04:28:09,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:28:09,579 INFO L470 AbstractCegarLoop]: Abstraction has 13488 states and 21002 transitions. [2021-12-18 04:28:09,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 04:28:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 13488 states and 21002 transitions. [2021-12-18 04:28:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-18 04:28:09,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:28:09,592 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:28:09,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 04:28:09,593 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:28:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:28:09,593 INFO L85 PathProgramCache]: Analyzing trace with hash -451464136, now seen corresponding path program 1 times [2021-12-18 04:28:09,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:28:09,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290496272] [2021-12-18 04:28:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:28:09,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:28:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:09,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:28:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:28:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:09,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:28:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:28:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:28:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:28:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:28:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:28:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 04:28:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:28:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:28:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 04:28:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 04:28:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-18 04:28:10,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:28:10,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290496272] [2021-12-18 04:28:10,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290496272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:28:10,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:28:10,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:28:10,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912244098] [2021-12-18 04:28:10,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:28:10,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:28:10,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:28:10,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:28:10,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:28:10,161 INFO L87 Difference]: Start difference. First operand 13488 states and 21002 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 04:28:14,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:28:16,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:28:19,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:28:26,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:28:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:28:37,603 INFO L93 Difference]: Finished difference Result 37710 states and 59166 transitions. [2021-12-18 04:28:37,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 04:28:37,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2021-12-18 04:28:37,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:28:37,726 INFO L225 Difference]: With dead ends: 37710 [2021-12-18 04:28:37,726 INFO L226 Difference]: Without dead ends: 24244 [2021-12-18 04:28:37,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:28:37,799 INFO L933 BasicCegarLoop]: 4479 mSDtfsCounter, 7653 mSDsluCounter, 6023 mSDsCounter, 0 mSdLazyCounter, 6240 mSolverCounterSat, 13155 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8783 SdHoareTripleChecker+Valid, 10502 SdHoareTripleChecker+Invalid, 19399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13155 IncrementalHoareTripleChecker+Valid, 6240 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:28:37,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8783 Valid, 10502 Invalid, 19399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13155 Valid, 6240 Invalid, 4 Unknown, 0 Unchecked, 26.0s Time] [2021-12-18 04:28:37,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24244 states. [2021-12-18 04:28:38,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24244 to 23296. [2021-12-18 04:28:38,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23296 states, 12317 states have (on average 1.3027522935779816) internal successors, (16046), 12807 states have internal predecessors, (16046), 10078 states have call successors, (10078), 857 states have call predecessors, (10078), 900 states have return successors, (10383), 9907 states have call predecessors, (10383), 10077 states have call successors, (10383) [2021-12-18 04:28:39,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23296 states to 23296 states and 36507 transitions. [2021-12-18 04:28:39,127 INFO L78 Accepts]: Start accepts. Automaton has 23296 states and 36507 transitions. Word has length 158 [2021-12-18 04:28:39,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:28:39,128 INFO L470 AbstractCegarLoop]: Abstraction has 23296 states and 36507 transitions. [2021-12-18 04:28:39,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 04:28:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 23296 states and 36507 transitions. [2021-12-18 04:28:39,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-18 04:28:39,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:28:39,143 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:28:39,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 04:28:39,144 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:28:39,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:28:39,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1345413806, now seen corresponding path program 1 times [2021-12-18 04:28:39,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:28:39,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394271886] [2021-12-18 04:28:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:28:39,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:28:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:39,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:28:39,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394271886] [2021-12-18 04:28:39,333 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-18 04:28:39,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110677454] [2021-12-18 04:28:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:28:39,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:28:39,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:28:39,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:28:39,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 04:28:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:40,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 4966 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 04:28:40,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:28:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-18 04:28:41,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:28:41,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110677454] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:28:41,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:28:41,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:28:41,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158648252] [2021-12-18 04:28:41,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:28:41,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:28:41,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:28:41,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:28:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:28:41,193 INFO L87 Difference]: Start difference. First operand 23296 states and 36507 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 04:28:47,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:28:47,713 INFO L93 Difference]: Finished difference Result 69860 states and 109531 transitions. [2021-12-18 04:28:47,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:28:47,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 177 [2021-12-18 04:28:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:28:48,201 INFO L225 Difference]: With dead ends: 69860 [2021-12-18 04:28:48,201 INFO L226 Difference]: Without dead ends: 46586 [2021-12-18 04:28:48,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:28:48,336 INFO L933 BasicCegarLoop]: 6652 mSDtfsCounter, 5141 mSDsluCounter, 9920 mSDsCounter, 0 mSdLazyCounter, 5681 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5145 SdHoareTripleChecker+Valid, 16572 SdHoareTripleChecker+Invalid, 5697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:28:48,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5145 Valid, 16572 Invalid, 5697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 5681 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-18 04:28:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46586 states. [2021-12-18 04:28:51,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46586 to 46578. [2021-12-18 04:28:51,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46578 states, 24623 states have (on average 1.3028875441660237) internal successors, (32081), 25611 states have internal predecessors, (32081), 20146 states have call successors, (20146), 1713 states have call predecessors, (20146), 1808 states have return successors, (20805), 19805 states have call predecessors, (20805), 20145 states have call successors, (20805) [2021-12-18 04:28:51,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46578 states to 46578 states and 73032 transitions. [2021-12-18 04:28:51,694 INFO L78 Accepts]: Start accepts. Automaton has 46578 states and 73032 transitions. Word has length 177 [2021-12-18 04:28:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:28:51,696 INFO L470 AbstractCegarLoop]: Abstraction has 46578 states and 73032 transitions. [2021-12-18 04:28:51,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 04:28:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand 46578 states and 73032 transitions. [2021-12-18 04:28:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-18 04:28:51,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:28:51,710 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:28:51,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 04:28:51,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:28:51,935 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:28:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:28:51,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1720930785, now seen corresponding path program 1 times [2021-12-18 04:28:51,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:28:51,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75634898] [2021-12-18 04:28:51,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:28:51,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:28:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:52,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:28:52,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75634898] [2021-12-18 04:28:52,158 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-18 04:28:52,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714669646] [2021-12-18 04:28:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:28:52,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:28:52,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:28:52,160 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:28:52,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 04:28:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:53,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 4964 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 04:28:53,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:28:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-18 04:28:53,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:28:53,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714669646] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:28:53,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:28:53,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:28:53,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992849880] [2021-12-18 04:28:53,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:28:53,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:28:53,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:28:53,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:28:53,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:28:53,813 INFO L87 Difference]: Start difference. First operand 46578 states and 73032 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 04:29:02,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:29:02,567 INFO L93 Difference]: Finished difference Result 139706 states and 219162 transitions. [2021-12-18 04:29:02,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:29:02,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2021-12-18 04:29:02,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:29:03,658 INFO L225 Difference]: With dead ends: 139706 [2021-12-18 04:29:03,658 INFO L226 Difference]: Without dead ends: 93150 [2021-12-18 04:29:03,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:29:03,893 INFO L933 BasicCegarLoop]: 6652 mSDtfsCounter, 5110 mSDsluCounter, 12859 mSDsCounter, 0 mSdLazyCounter, 5690 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5114 SdHoareTripleChecker+Valid, 19511 SdHoareTripleChecker+Invalid, 5706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:29:03,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5114 Valid, 19511 Invalid, 5706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 5690 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-18 04:29:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93150 states. [2021-12-18 04:29:09,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93150 to 93142. [2021-12-18 04:29:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93142 states, 49235 states have (on average 1.3029552147862293) internal successors, (64151), 51219 states have internal predecessors, (64151), 40282 states have call successors, (40282), 3425 states have call predecessors, (40282), 3624 states have return successors, (41689), 39601 states have call predecessors, (41689), 40281 states have call successors, (41689) [2021-12-18 04:29:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93142 states to 93142 states and 146122 transitions. [2021-12-18 04:29:10,648 INFO L78 Accepts]: Start accepts. Automaton has 93142 states and 146122 transitions. Word has length 176 [2021-12-18 04:29:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:29:10,649 INFO L470 AbstractCegarLoop]: Abstraction has 93142 states and 146122 transitions. [2021-12-18 04:29:10,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 04:29:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 93142 states and 146122 transitions. [2021-12-18 04:29:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-18 04:29:10,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:10,664 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:29:10,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 04:29:10,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:10,876 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:10,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:10,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1952723066, now seen corresponding path program 1 times [2021-12-18 04:29:10,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:10,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558974982] [2021-12-18 04:29:10,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:10,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:11,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:29:11,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558974982] [2021-12-18 04:29:11,082 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-18 04:29:11,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104582284] [2021-12-18 04:29:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:11,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:11,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:11,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:29:11,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 04:29:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:12,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 4968 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 04:29:12,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:29:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-18 04:29:12,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:29:12,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104582284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:29:12,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:29:12,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:29:12,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760404386] [2021-12-18 04:29:12,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:29:12,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:29:12,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:29:12,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:29:12,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:29:12,864 INFO L87 Difference]: Start difference. First operand 93142 states and 146122 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 04:29:26,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:29:26,485 INFO L93 Difference]: Finished difference Result 279398 states and 438592 transitions. [2021-12-18 04:29:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:29:26,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 178 [2021-12-18 04:29:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:29:28,391 INFO L225 Difference]: With dead ends: 279398 [2021-12-18 04:29:28,392 INFO L226 Difference]: Without dead ends: 186278 [2021-12-18 04:29:28,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:29:28,935 INFO L933 BasicCegarLoop]: 6602 mSDtfsCounter, 5140 mSDsluCounter, 9920 mSDsCounter, 0 mSdLazyCounter, 5681 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 16522 SdHoareTripleChecker+Invalid, 5697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-18 04:29:28,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5144 Valid, 16522 Invalid, 5697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 5681 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-18 04:29:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186278 states. [2021-12-18 04:29:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186278 to 186270. [2021-12-18 04:29:40,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186270 states, 98459 states have (on average 1.30298906143674) internal successors, (128291), 102435 states have internal predecessors, (128291), 80554 states have call successors, (80554), 6849 states have call predecessors, (80554), 7256 states have return successors, (83585), 79193 states have call predecessors, (83585), 80553 states have call successors, (83585) [2021-12-18 04:29:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186270 states to 186270 states and 292430 transitions. [2021-12-18 04:29:42,472 INFO L78 Accepts]: Start accepts. Automaton has 186270 states and 292430 transitions. Word has length 178 [2021-12-18 04:29:42,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:29:42,473 INFO L470 AbstractCegarLoop]: Abstraction has 186270 states and 292430 transitions. [2021-12-18 04:29:42,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 04:29:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 186270 states and 292430 transitions. [2021-12-18 04:29:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 04:29:42,486 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:42,486 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:29:42,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 04:29:42,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:42,707 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:42,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:42,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1335531467, now seen corresponding path program 1 times [2021-12-18 04:29:42,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:42,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705623801] [2021-12-18 04:29:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:42,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:42,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:29:42,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705623801] [2021-12-18 04:29:42,902 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-18 04:29:42,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835524886] [2021-12-18 04:29:42,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:42,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:42,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:29:42,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 04:29:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:44,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 4962 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 04:29:44,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:29:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-18 04:29:44,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:29:44,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835524886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:29:44,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:29:44,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:29:44,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810759705] [2021-12-18 04:29:44,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:29:44,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:29:44,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:29:44,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:29:44,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:29:44,871 INFO L87 Difference]: Start difference. First operand 186270 states and 292430 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20)