./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.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 b5d2eeaaae10ee4c57bd86d22cba165fc727430aa2a7f660f053fb73e5712838 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:40:39,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:40:39,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:40:39,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:40:39,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:40:39,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:40:39,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:40:39,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:40:39,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:40:39,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:40:39,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:40:39,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:40:39,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:40:39,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:40:39,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:40:39,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:40:39,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:40:39,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:40:39,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:40:39,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:40:39,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:40:39,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:40:39,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:40:39,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:40:39,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:40:39,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:40:39,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:40:39,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:40:39,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:40:39,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:40:39,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:40:39,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:40:39,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:40:39,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:40:39,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:40:39,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:40:39,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:40:39,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:40:39,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:40:39,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:40:39,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:40:39,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:40:39,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:40:39,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:40:39,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:40:39,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:40:39,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:40:39,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:40:39,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:40:39,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:40:39,303 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:40:39,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:40:39,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:40:39,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:40:39,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:40:39,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:40:39,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:40:39,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:40:39,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:40:39,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:40:39,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:40:39,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:40:39,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:40:39,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:40:39,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:40:39,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:40:39,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:40:39,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:40:39,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:40:39,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:40:39,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:40:39,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:40:39,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:40:39,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d2eeaaae10ee4c57bd86d22cba165fc727430aa2a7f660f053fb73e5712838 [2021-12-14 18:40:39,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:40:39,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:40:39,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:40:39,502 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:40:39,503 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:40:39,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-12-14 18:40:39,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf287236/9df5108184de4e09a38ea326bf63cf39/FLAG8cf0c4d59 [2021-12-14 18:40:40,185 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:40:40,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-12-14 18:40:40,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf287236/9df5108184de4e09a38ea326bf63cf39/FLAG8cf0c4d59 [2021-12-14 18:40:40,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf287236/9df5108184de4e09a38ea326bf63cf39 [2021-12-14 18:40:40,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:40:40,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:40:40,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:40:40,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:40:40,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:40:40,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:40" (1/1) ... [2021-12-14 18:40:40,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a5ccaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:40, skipping insertion in model container [2021-12-14 18:40:40,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:40" (1/1) ... [2021-12-14 18:40:40,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:40:40,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:40:42,729 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454757,454770] [2021-12-14 18:40:42,731 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454904,454917] [2021-12-14 18:40:42,732 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455043,455056] [2021-12-14 18:40:42,732 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455201,455214] [2021-12-14 18:40:42,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:40:42,797 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:40:43,119 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454757,454770] [2021-12-14 18:40:43,120 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454904,454917] [2021-12-14 18:40:43,120 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455043,455056] [2021-12-14 18:40:43,121 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455201,455214] [2021-12-14 18:40:43,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:40:43,243 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:40:43,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43 WrapperNode [2021-12-14 18:40:43,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:40:43,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:40:43,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:40:43,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:40:43,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,600 INFO L137 Inliner]: procedures = 460, calls = 5099, calls flagged for inlining = 268, calls inlined = 251, statements flattened = 11051 [2021-12-14 18:40:43,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:40:43,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:40:43,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:40:43,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:40:43,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:40:43,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:40:43,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:40:43,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:40:43,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2021-12-14 18:40:43,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:40:43,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:40:43,906 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) [2021-12-14 18:40:43,919 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 [2021-12-14 18:40:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2021-12-14 18:40:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2021-12-14 18:40:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2021-12-14 18:40:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2021-12-14 18:40:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:40:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:40:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:40:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:40:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-14 18:40:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-14 18:40:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:40:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:40:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2021-12-14 18:40:43,936 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2021-12-14 18:40:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2021-12-14 18:40:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2021-12-14 18:40:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:40:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:40:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 18:40:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 18:40:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:40:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:40:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-14 18:40:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-14 18:40:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 18:40:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 18:40:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-14 18:40:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-14 18:40:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-14 18:40:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-14 18:40:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-14 18:40:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-14 18:40:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-14 18:40:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-14 18:40:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:40:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:40:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 18:40:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 18:40:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:40:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:40:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2021-12-14 18:40:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2021-12-14 18:40:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 18:40:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 18:40:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-14 18:40:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-14 18:40:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:40:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:40:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:40:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:40:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:40:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:40:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 18:40:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 18:40:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:40:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2021-12-14 18:40:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2021-12-14 18:40:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2021-12-14 18:40:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2021-12-14 18:40:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-14 18:40:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-14 18:40:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2021-12-14 18:40:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2021-12-14 18:40:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:40:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:40:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:40:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:40:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-14 18:40:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2021-12-14 18:40:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2021-12-14 18:40:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2021-12-14 18:40:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-14 18:40:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:40:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:40:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2021-12-14 18:40:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 18:40:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:40:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:40:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:40:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-14 18:40:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-14 18:40:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-14 18:40:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-14 18:40:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-12-14 18:40:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-12-14 18:40:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:40:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2021-12-14 18:40:44,027 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2021-12-14 18:40:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2021-12-14 18:40:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2021-12-14 18:40:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 18:40:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 18:40:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2021-12-14 18:40:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2021-12-14 18:40:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:40:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:40:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-12-14 18:40:44,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-12-14 18:40:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2021-12-14 18:40:44,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2021-12-14 18:40:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:40:44,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:40:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-14 18:40:44,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-14 18:40:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2021-12-14 18:40:44,029 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2021-12-14 18:40:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-14 18:40:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-14 18:40:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2021-12-14 18:40:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2021-12-14 18:40:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2021-12-14 18:40:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2021-12-14 18:40:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 18:40:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 18:40:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:40:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:40:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-14 18:40:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-14 18:40:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:40:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:40:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:40:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:40:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:40:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2021-12-14 18:40:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2021-12-14 18:40:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:40:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:40:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-12-14 18:40:44,033 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-12-14 18:40:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2021-12-14 18:40:44,033 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2021-12-14 18:40:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-14 18:40:44,033 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-14 18:40:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2021-12-14 18:40:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2021-12-14 18:40:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-14 18:40:44,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-14 18:40:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:40:44,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:40:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-14 18:40:44,037 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-14 18:40:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-14 18:40:44,037 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-14 18:40:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-14 18:40:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-14 18:40:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2021-12-14 18:40:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2021-12-14 18:40:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-14 18:40:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-14 18:40:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2021-12-14 18:40:44,042 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2021-12-14 18:40:44,042 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:40:44,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:40:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:40:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2021-12-14 18:40:44,043 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2021-12-14 18:40:44,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:40:44,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:40:44,880 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:40:44,883 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:40:45,662 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:40:50,240 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:40:50,397 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:40:50,415 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:40:50,415 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 18:40:50,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:50 BoogieIcfgContainer [2021-12-14 18:40:50,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:40:50,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:40:50,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:40:50,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:40:50,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:40:40" (1/3) ... [2021-12-14 18:40:50,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ca73e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:50, skipping insertion in model container [2021-12-14 18:40:50,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (2/3) ... [2021-12-14 18:40:50,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ca73e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:50, skipping insertion in model container [2021-12-14 18:40:50,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:50" (3/3) ... [2021-12-14 18:40:50,424 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-12-14 18:40:50,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:40:50,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-14 18:40:50,464 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:40:50,468 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 [2021-12-14 18:40:50,468 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-14 18:40:50,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 3407 states, 2369 states have (on average 1.3676656817222457) internal successors, (3240), 2468 states have internal predecessors, (3240), 914 states have call successors, (914), 124 states have call predecessors, (914), 123 states have return successors, (907), 863 states have call predecessors, (907), 907 states have call successors, (907) [2021-12-14 18:40:50,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-14 18:40:50,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:40:50,550 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:40:50,550 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:40:50,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:40:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1088134122, now seen corresponding path program 1 times [2021-12-14 18:40:50,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:40:50,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349097270] [2021-12-14 18:40:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:40:50,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:40:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:40:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:40:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:40:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:40:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:40:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:40:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:40:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:40:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:40:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:40:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:40:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:40:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:40:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:40:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:40:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-14 18:40:51,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:40:51,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349097270] [2021-12-14 18:40:51,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349097270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:40:51,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:40:51,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:40:51,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678220034] [2021-12-14 18:40:51,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:40:51,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:40:51,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:40:51,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:40:51,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:40:51,494 INFO L87 Difference]: Start difference. First operand has 3407 states, 2369 states have (on average 1.3676656817222457) internal successors, (3240), 2468 states have internal predecessors, (3240), 914 states have call successors, (914), 124 states have call predecessors, (914), 123 states have return successors, (907), 863 states have call predecessors, (907), 907 states have call successors, (907) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:40:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:40:56,796 INFO L93 Difference]: Finished difference Result 10239 states and 15371 transitions. [2021-12-14 18:40:56,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:40:56,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2021-12-14 18:40:56,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:40:56,850 INFO L225 Difference]: With dead ends: 10239 [2021-12-14 18:40:56,851 INFO L226 Difference]: Without dead ends: 6851 [2021-12-14 18:40:56,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:40:56,885 INFO L933 BasicCegarLoop]: 5551 mSDtfsCounter, 5509 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 2451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6331 SdHoareTripleChecker+Valid, 12363 SdHoareTripleChecker+Invalid, 5082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2451 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:40:56,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6331 Valid, 12363 Invalid, 5082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2451 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-14 18:40:56,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2021-12-14 18:40:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6671. [2021-12-14 18:40:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6671 states, 4647 states have (on average 1.3666881859264042) internal successors, (6351), 4842 states have internal predecessors, (6351), 1779 states have call successors, (1779), 244 states have call predecessors, (1779), 243 states have return successors, (1776), 1688 states have call predecessors, (1776), 1776 states have call successors, (1776) [2021-12-14 18:40:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6671 states to 6671 states and 9906 transitions. [2021-12-14 18:40:57,368 INFO L78 Accepts]: Start accepts. Automaton has 6671 states and 9906 transitions. Word has length 170 [2021-12-14 18:40:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:40:57,371 INFO L470 AbstractCegarLoop]: Abstraction has 6671 states and 9906 transitions. [2021-12-14 18:40:57,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:40:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 6671 states and 9906 transitions. [2021-12-14 18:40:57,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-14 18:40:57,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:40:57,381 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:40:57,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:40:57,381 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:40:57,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:40:57,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1148558254, now seen corresponding path program 1 times [2021-12-14 18:40:57,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:40:57,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366598414] [2021-12-14 18:40:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:40:57,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:40:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:40:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:40:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:40:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:40:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:40:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:40:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:40:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:40:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:40:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:40:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:40:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:40:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:40:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:40:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:40:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-14 18:40:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:40:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-14 18:40:57,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:40:57,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366598414] [2021-12-14 18:40:57,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366598414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:40:57,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:40:57,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:40:57,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491189903] [2021-12-14 18:40:57,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:40:57,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:40:57,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:40:57,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:40:57,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:40:57,816 INFO L87 Difference]: Start difference. First operand 6671 states and 9906 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:41:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:41:00,965 INFO L93 Difference]: Finished difference Result 14511 states and 21597 transitions. [2021-12-14 18:41:00,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:41:00,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 185 [2021-12-14 18:41:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:41:01,067 INFO L225 Difference]: With dead ends: 14511 [2021-12-14 18:41:01,068 INFO L226 Difference]: Without dead ends: 7871 [2021-12-14 18:41:01,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:41:01,124 INFO L933 BasicCegarLoop]: 5288 mSDtfsCounter, 3858 mSDsluCounter, 6772 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 1945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4468 SdHoareTripleChecker+Valid, 12060 SdHoareTripleChecker+Invalid, 4320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1945 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:41:01,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4468 Valid, 12060 Invalid, 4320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1945 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-14 18:41:01,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2021-12-14 18:41:01,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 7653. [2021-12-14 18:41:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7653 states, 5322 states have (on average 1.3673431040962045) internal successors, (7277), 5535 states have internal predecessors, (7277), 2041 states have call successors, (2041), 290 states have call predecessors, (2041), 288 states have return successors, (2038), 1941 states have call predecessors, (2038), 2038 states have call successors, (2038) [2021-12-14 18:41:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7653 states to 7653 states and 11356 transitions. [2021-12-14 18:41:01,404 INFO L78 Accepts]: Start accepts. Automaton has 7653 states and 11356 transitions. Word has length 185 [2021-12-14 18:41:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:41:01,405 INFO L470 AbstractCegarLoop]: Abstraction has 7653 states and 11356 transitions. [2021-12-14 18:41:01,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:41:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 7653 states and 11356 transitions. [2021-12-14 18:41:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-14 18:41:01,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:41:01,416 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 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] [2021-12-14 18:41:01,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:41:01,416 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:41:01,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:41:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1828591083, now seen corresponding path program 1 times [2021-12-14 18:41:01,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:41:01,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720104809] [2021-12-14 18:41:01,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:41:01,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:41:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:41:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:41:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:41:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:41:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:41:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:41:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:41:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:41:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:41:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:41:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:41:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:41:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:41:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:41:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:41:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 18:41:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:41:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 18:41:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:41:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 18:41:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 18:41:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-14 18:41:01,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:41:01,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720104809] [2021-12-14 18:41:01,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720104809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:41:01,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:41:01,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:41:01,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671278682] [2021-12-14 18:41:01,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:41:01,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:41:01,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:41:01,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:41:01,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:41:01,782 INFO L87 Difference]: Start difference. First operand 7653 states and 11356 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-14 18:41:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:41:06,247 INFO L93 Difference]: Finished difference Result 18928 states and 28142 transitions. [2021-12-14 18:41:06,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:41:06,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 226 [2021-12-14 18:41:06,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:41:06,343 INFO L225 Difference]: With dead ends: 18928 [2021-12-14 18:41:06,343 INFO L226 Difference]: Without dead ends: 13399 [2021-12-14 18:41:06,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:41:06,376 INFO L933 BasicCegarLoop]: 8057 mSDtfsCounter, 4967 mSDsluCounter, 8317 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 1874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5784 SdHoareTripleChecker+Valid, 16374 SdHoareTripleChecker+Invalid, 4548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1874 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:41:06,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5784 Valid, 16374 Invalid, 4548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1874 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-14 18:41:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13399 states. [2021-12-14 18:41:06,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13399 to 13036. [2021-12-14 18:41:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13036 states, 9072 states have (on average 1.3688271604938271) internal successors, (12418), 9436 states have internal predecessors, (12418), 3472 states have call successors, (3472), 492 states have call predecessors, (3472), 490 states have return successors, (3469), 3304 states have call predecessors, (3469), 3469 states have call successors, (3469) [2021-12-14 18:41:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13036 states to 13036 states and 19359 transitions. [2021-12-14 18:41:06,939 INFO L78 Accepts]: Start accepts. Automaton has 13036 states and 19359 transitions. Word has length 226 [2021-12-14 18:41:06,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:41:06,940 INFO L470 AbstractCegarLoop]: Abstraction has 13036 states and 19359 transitions. [2021-12-14 18:41:06,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-14 18:41:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand 13036 states and 19359 transitions. [2021-12-14 18:41:07,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-14 18:41:07,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:41:07,010 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 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] [2021-12-14 18:41:07,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:41:07,011 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:41:07,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:41:07,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1962604589, now seen corresponding path program 1 times [2021-12-14 18:41:07,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:41:07,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700717705] [2021-12-14 18:41:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:41:07,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:41:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:41:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:41:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:41:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:41:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:41:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:41:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:41:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:41:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:41:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:41:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:41:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:41:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:41:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:41:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:41:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 18:41:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:41:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 18:41:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:41:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 18:41:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-14 18:41:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-12-14 18:41:07,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:41:07,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700717705] [2021-12-14 18:41:07,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700717705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:41:07,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:41:07,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:41:07,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023059906] [2021-12-14 18:41:07,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:41:07,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:41:07,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:41:07,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:41:07,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:41:07,463 INFO L87 Difference]: Start difference. First operand 13036 states and 19359 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-14 18:41:10,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:41:10,644 INFO L93 Difference]: Finished difference Result 13397 states and 19935 transitions. [2021-12-14 18:41:10,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:41:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 226 [2021-12-14 18:41:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:41:10,717 INFO L225 Difference]: With dead ends: 13397 [2021-12-14 18:41:10,717 INFO L226 Difference]: Without dead ends: 13366 [2021-12-14 18:41:10,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:41:10,733 INFO L933 BasicCegarLoop]: 4808 mSDtfsCounter, 4793 mSDsluCounter, 6780 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 1543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5426 SdHoareTripleChecker+Valid, 11588 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1543 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:41:10,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5426 Valid, 11588 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1543 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-14 18:41:10,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13366 states. [2021-12-14 18:41:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13366 to 13005. [2021-12-14 18:41:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13005 states, 9058 states have (on average 1.3687348200485758) internal successors, (12398), 9416 states have internal predecessors, (12398), 3457 states have call successors, (3457), 489 states have call predecessors, (3457), 489 states have return successors, (3457), 3296 states have call predecessors, (3457), 3457 states have call successors, (3457) [2021-12-14 18:41:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13005 states to 13005 states and 19312 transitions. [2021-12-14 18:41:11,367 INFO L78 Accepts]: Start accepts. Automaton has 13005 states and 19312 transitions. Word has length 226 [2021-12-14 18:41:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:41:11,368 INFO L470 AbstractCegarLoop]: Abstraction has 13005 states and 19312 transitions. [2021-12-14 18:41:11,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-14 18:41:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 13005 states and 19312 transitions. [2021-12-14 18:41:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-14 18:41:11,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:41:11,393 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 5, 5, 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] [2021-12-14 18:41:11,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:41:11,394 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:41:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:41:11,394 INFO L85 PathProgramCache]: Analyzing trace with hash 993694247, now seen corresponding path program 1 times [2021-12-14 18:41:11,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:41:11,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032549917] [2021-12-14 18:41:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:41:11,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:41:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:41:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:41:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:41:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:41:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:41:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:41:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:41:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:41:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:41:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:41:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:41:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:41:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:41:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:41:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:41:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 18:41:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:41:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:41:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:41:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 18:41:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:41:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-14 18:41:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 919 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2021-12-14 18:41:11,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:41:11,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032549917] [2021-12-14 18:41:11,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032549917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:41:11,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:41:11,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:41:11,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287172366] [2021-12-14 18:41:11,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:41:11,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:41:11,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:41:11,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:41:11,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:41:11,791 INFO L87 Difference]: Start difference. First operand 13005 states and 19312 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-14 18:41:15,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:41:15,954 INFO L93 Difference]: Finished difference Result 28635 states and 42584 transitions. [2021-12-14 18:41:15,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:41:15,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 249 [2021-12-14 18:41:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:41:16,037 INFO L225 Difference]: With dead ends: 28635 [2021-12-14 18:41:16,037 INFO L226 Difference]: Without dead ends: 17754 [2021-12-14 18:41:16,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:41:16,090 INFO L933 BasicCegarLoop]: 7801 mSDtfsCounter, 3313 mSDsluCounter, 8224 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 1352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3921 SdHoareTripleChecker+Valid, 16025 SdHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1352 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:41:16,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3921 Valid, 16025 Invalid, 3770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1352 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-14 18:41:16,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17754 states. [2021-12-14 18:41:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17754 to 17270. [2021-12-14 18:41:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17270 states, 12022 states have (on average 1.3689070038263185) internal successors, (16457), 12491 states have internal predecessors, (16457), 4591 states have call successors, (4591), 656 states have call predecessors, (4591), 656 states have return successors, (4591), 4381 states have call predecessors, (4591), 4591 states have call successors, (4591) [2021-12-14 18:41:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17270 states to 17270 states and 25639 transitions. [2021-12-14 18:41:16,781 INFO L78 Accepts]: Start accepts. Automaton has 17270 states and 25639 transitions. Word has length 249 [2021-12-14 18:41:16,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:41:16,781 INFO L470 AbstractCegarLoop]: Abstraction has 17270 states and 25639 transitions. [2021-12-14 18:41:16,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-14 18:41:16,782 INFO L276 IsEmpty]: Start isEmpty. Operand 17270 states and 25639 transitions. [2021-12-14 18:41:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-12-14 18:41:16,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:41:16,837 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-14 18:41:16,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:41:16,837 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:41:16,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:41:16,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1893612546, now seen corresponding path program 1 times [2021-12-14 18:41:16,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:41:16,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285931971] [2021-12-14 18:41:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:41:16,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:41:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:41:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:41:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:41:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:41:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:41:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:41:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:41:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:41:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:41:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:41:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:41:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:41:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:41:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:41:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:41:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 18:41:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:41:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:41:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:41:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 18:41:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:41:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 18:41:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:41:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:41:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-14 18:41:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:41:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:41:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-14 18:41:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-14 18:41:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-14 18:41:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2021-12-14 18:41:17,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:41:17,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285931971] [2021-12-14 18:41:17,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285931971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:41:17,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:41:17,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:41:17,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774183778] [2021-12-14 18:41:17,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:41:17,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:41:17,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:41:17,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:41:17,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:41:17,259 INFO L87 Difference]: Start difference. First operand 17270 states and 25639 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-14 18:41:21,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:41:21,113 INFO L93 Difference]: Finished difference Result 37271 states and 55394 transitions. [2021-12-14 18:41:21,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:41:21,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 323 [2021-12-14 18:41:21,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:41:21,225 INFO L225 Difference]: With dead ends: 37271 [2021-12-14 18:41:21,225 INFO L226 Difference]: Without dead ends: 22125 [2021-12-14 18:41:21,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:41:21,281 INFO L933 BasicCegarLoop]: 7828 mSDtfsCounter, 3312 mSDsluCounter, 8257 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3918 SdHoareTripleChecker+Valid, 16085 SdHoareTripleChecker+Invalid, 3747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:41:21,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3918 Valid, 16085 Invalid, 3747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-14 18:41:21,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22125 states. [2021-12-14 18:41:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22125 to 21519. [2021-12-14 18:41:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21519 states, 14976 states have (on average 1.3692574786324787) internal successors, (20506), 15556 states have internal predecessors, (20506), 5719 states have call successors, (5719), 823 states have call predecessors, (5719), 823 states have return successors, (5719), 5460 states have call predecessors, (5719), 5719 states have call successors, (5719) [2021-12-14 18:41:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21519 states to 21519 states and 31944 transitions. [2021-12-14 18:41:22,098 INFO L78 Accepts]: Start accepts. Automaton has 21519 states and 31944 transitions. Word has length 323 [2021-12-14 18:41:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:41:22,098 INFO L470 AbstractCegarLoop]: Abstraction has 21519 states and 31944 transitions. [2021-12-14 18:41:22,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-14 18:41:22,099 INFO L276 IsEmpty]: Start isEmpty. Operand 21519 states and 31944 transitions. [2021-12-14 18:41:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-12-14 18:41:22,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:41:22,145 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-14 18:41:22,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:41:22,145 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:41:22,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:41:22,146 INFO L85 PathProgramCache]: Analyzing trace with hash 555987584, now seen corresponding path program 1 times [2021-12-14 18:41:22,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:41:22,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519939136] [2021-12-14 18:41:22,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:41:22,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:41:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:41:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:41:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:41:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:41:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:41:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:41:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:41:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:41:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:41:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:41:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:41:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:41:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:41:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:41:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:41:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 18:41:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:41:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:41:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:41:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 18:41:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:41:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 18:41:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:41:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:41:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-14 18:41:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:41:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:41:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:41:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-14 18:41:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-14 18:41:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-14 18:41:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:41:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2021-12-14 18:41:22,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:41:22,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519939136] [2021-12-14 18:41:22,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519939136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:41:22,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:41:22,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:41:22,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277922331] [2021-12-14 18:41:22,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:41:22,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:41:22,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:41:22,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:41:22,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:41:22,802 INFO L87 Difference]: Start difference. First operand 21519 states and 31944 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-14 18:41:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:41:26,329 INFO L93 Difference]: Finished difference Result 26211 states and 39253 transitions. [2021-12-14 18:41:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:41:26,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 323 [2021-12-14 18:41:26,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:41:26,333 INFO L225 Difference]: With dead ends: 26211 [2021-12-14 18:41:26,333 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 18:41:26,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:41:26,423 INFO L933 BasicCegarLoop]: 6050 mSDtfsCounter, 5823 mSDsluCounter, 8008 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 1928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6448 SdHoareTripleChecker+Valid, 14058 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1928 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:41:26,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6448 Valid, 14058 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1928 Valid, 2197 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-14 18:41:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 18:41:26,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 18:41:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 18:41:26,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 18:41:26,430 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 323 [2021-12-14 18:41:26,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:41:26,430 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 18:41:26,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-14 18:41:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 18:41:26,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 18:41:26,433 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-14 18:41:26,433 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-14 18:41:26,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:41:26,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.