./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-oki-semi-pch_gbe-pch_gbe.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.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 32a406239684e899577576103e146c0b88a65f19a1f620e7a11415e96a39c63a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:58:00,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:58:00,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:58:00,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:58:00,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:58:00,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:58:00,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:58:00,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:58:00,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:58:00,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:58:00,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:58:00,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:58:00,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:58:00,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:58:00,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:58:00,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:58:00,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:58:00,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:58:00,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:58:00,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:58:00,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:58:00,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:58:00,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:58:00,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:58:00,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:58:00,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:58:00,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:58:00,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:58:00,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:58:00,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:58:00,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:58:00,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:58:00,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:58:00,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:58:00,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:58:00,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:58:00,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:58:00,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:58:00,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:58:00,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:58:00,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:58:00,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:58:00,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:58:00,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:58:00,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:58:00,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:58:00,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:58:00,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:58:00,571 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:58:00,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:58:00,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:58:00,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:58:00,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:58:00,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:58:00,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:58:00,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:58:00,572 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:58:00,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:58:00,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:58:00,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:58:00,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:58:00,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:58:00,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:58:00,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:58:00,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:58:00,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:58:00,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:58:00,574 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:58:00,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:58:00,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:58:00,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:58:00,575 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a406239684e899577576103e146c0b88a65f19a1f620e7a11415e96a39c63a [2021-11-23 02:58:00,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:58:00,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:58:00,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:58:00,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:58:00,808 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:58:00,809 INFO L432 ainManager$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-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-23 02:58:00,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8108e0328/a63e9060156f441fbc18e9c9d60d5e7c/FLAGe2c06c7f2 [2021-11-23 02:58:01,618 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:58:01,619 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-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-23 02:58:01,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8108e0328/a63e9060156f441fbc18e9c9d60d5e7c/FLAGe2c06c7f2 [2021-11-23 02:58:01,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8108e0328/a63e9060156f441fbc18e9c9d60d5e7c [2021-11-23 02:58:01,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:58:01,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:58:01,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:58:01,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:58:01,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:58:01,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:01" (1/1) ... [2021-11-23 02:58:01,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4472c60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:01, skipping insertion in model container [2021-11-23 02:58:01,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:01" (1/1) ... [2021-11-23 02:58:01,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:58:02,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:58:04,173 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-oki-semi-pch_gbe-pch_gbe.cil.i[512219,512232] [2021-11-23 02:58:04,176 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-oki-semi-pch_gbe-pch_gbe.cil.i[512366,512379] [2021-11-23 02:58:04,176 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-oki-semi-pch_gbe-pch_gbe.cil.i[512505,512518] [2021-11-23 02:58:04,176 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-oki-semi-pch_gbe-pch_gbe.cil.i[512663,512676] [2021-11-23 02:58:04,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:58:04,277 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:58:04,580 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-oki-semi-pch_gbe-pch_gbe.cil.i[512219,512232] [2021-11-23 02:58:04,580 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-oki-semi-pch_gbe-pch_gbe.cil.i[512366,512379] [2021-11-23 02:58:04,581 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-oki-semi-pch_gbe-pch_gbe.cil.i[512505,512518] [2021-11-23 02:58:04,581 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-oki-semi-pch_gbe-pch_gbe.cil.i[512663,512676] [2021-11-23 02:58:04,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:58:04,960 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:58:04,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04 WrapperNode [2021-11-23 02:58:04,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:58:04,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:58:04,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:58:04,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:58:04,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:05,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:11,152 INFO L137 Inliner]: procedures = 578, calls = 5653, calls flagged for inlining = 1222, calls inlined = 34604, statements flattened = 418492 [2021-11-23 02:58:11,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:58:11,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:58:11,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:58:11,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:58:11,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:11,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:12,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:12,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:15,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:16,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:17,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:19,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:58:19,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:58:19,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:58:19,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:58:19,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (1/1) ... [2021-11-23 02:58:19,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:58:19,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:58:19,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:58:19,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_26 [2021-11-23 02:58:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_26 [2021-11-23 02:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:58:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 02:58:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 02:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_remove [2021-11-23 02:58:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_remove [2021-11-23 02:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:58:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:58:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:58:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure __pch_gbe_suspend [2021-11-23 02:58:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __pch_gbe_suspend [2021-11-23 02:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:58:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_14_2 [2021-11-23 02:58:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_14_2 [2021-11-23 02:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_stop [2021-11-23 02:58:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_stop [2021-11-23 02:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:58:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_down_phy [2021-11-23 02:58:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_down_phy [2021-11-23 02:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_phy_hw_reset [2021-11-23 02:58:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_phy_hw_reset [2021-11-23 02:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_shutdown [2021-11-23 02:58:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_shutdown [2021-11-23 02:58:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:58:20,563 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:58:20,565 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:03:02,221 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 03:03:02,222 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 03:03:02,222 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-23 03:03:02,222 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res#1 := 0; [2021-11-23 03:03:02,223 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#1: ldv_switch_4_#res#1 := 0; [2021-11-23 03:03:02,223 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res#1 := 0; [2021-11-23 03:03:02,223 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 03:03:02,223 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 03:03:02,242 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#1: ldv_switch_5_#res#1 := 0; [2021-11-23 03:03:02,242 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res#1 := 0; [2021-11-23 03:03:02,250 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 03:03:02,250 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 03:03:02,250 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 03:03:02,250 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 03:03:02,252 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:03:08,315 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:03:08,448 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:03:08,448 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 03:03:08,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:08 BoogieIcfgContainer [2021-11-23 03:03:08,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:03:08,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:03:08,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:03:08,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:03:08,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:58:01" (1/3) ... [2021-11-23 03:03:08,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d53ed31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:08, skipping insertion in model container [2021-11-23 03:03:08,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:04" (2/3) ... [2021-11-23 03:03:08,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d53ed31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:08, skipping insertion in model container [2021-11-23 03:03:08,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:08" (3/3) ... [2021-11-23 03:03:08,506 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-oki-semi-pch_gbe-pch_gbe.cil.i [2021-11-23 03:03:08,510 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:03:08,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-23 03:03:08,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:03:08,694 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:03:08,694 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 03:03:09,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 68050 states, 67904 states have (on average 1.3042972431668238) internal successors, (88567), 67934 states have internal predecessors, (88567), 131 states have call successors, (131), 10 states have call predecessors, (131), 10 states have return successors, (131), 130 states have call predecessors, (131), 131 states have call successors, (131) [2021-11-23 03:03:09,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-23 03:03:09,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:09,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:09,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 03:03:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:09,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1094082705, now seen corresponding path program 1 times [2021-11-23 03:03:09,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 03:03:09,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513544284] [2021-11-23 03:03:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:09,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:03:10,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 03:03:10,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513544284] [2021-11-23 03:03:10,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513544284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:10,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:10,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:03:10,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135592709] [2021-11-23 03:03:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:10,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:03:10,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 03:03:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:03:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:10,211 INFO L87 Difference]: Start difference. First operand has 68050 states, 67904 states have (on average 1.3042972431668238) internal successors, (88567), 67934 states have internal predecessors, (88567), 131 states have call successors, (131), 10 states have call predecessors, (131), 10 states have return successors, (131), 130 states have call predecessors, (131), 131 states have call successors, (131) Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:14,726 INFO L93 Difference]: Finished difference Result 203591 states and 266037 transitions. [2021-11-23 03:03:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:03:14,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-23 03:03:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:15,306 INFO L225 Difference]: With dead ends: 203591 [2021-11-23 03:03:15,307 INFO L226 Difference]: Without dead ends: 133450 [2021-11-23 03:03:15,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:15,590 INFO L933 BasicCegarLoop]: 88681 mSDtfsCounter, 88167 mSDsluCounter, 88492 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88167 SdHoareTripleChecker+Valid, 177173 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:15,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88167 Valid, 177173 Invalid, 44 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:03:15,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133450 states. [2021-11-23 03:03:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133450 to 133446. [2021-11-23 03:03:18,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133446 states, 133159 states have (on average 1.2887900930466585) internal successors, (171614), 133215 states have internal predecessors, (171614), 262 states have call successors, (262), 20 states have call predecessors, (262), 20 states have return successors, (262), 260 states have call predecessors, (262), 262 states have call successors, (262) [2021-11-23 03:03:19,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133446 states to 133446 states and 172138 transitions. [2021-11-23 03:03:19,567 INFO L78 Accepts]: Start accepts. Automaton has 133446 states and 172138 transitions. Word has length 85 [2021-11-23 03:03:19,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:19,570 INFO L470 AbstractCegarLoop]: Abstraction has 133446 states and 172138 transitions. [2021-11-23 03:03:19,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:19,573 INFO L276 IsEmpty]: Start isEmpty. Operand 133446 states and 172138 transitions. [2021-11-23 03:03:19,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-23 03:03:19,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:19,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:19,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:03:19,586 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 03:03:19,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:19,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1600037094, now seen corresponding path program 1 times [2021-11-23 03:03:19,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 03:03:19,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364851633] [2021-11-23 03:03:19,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:19,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:03:20,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 03:03:20,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364851633] [2021-11-23 03:03:20,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364851633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:20,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:20,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:03:20,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24990490] [2021-11-23 03:03:20,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:20,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:03:20,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 03:03:20,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:03:20,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:20,031 INFO L87 Difference]: Start difference. First operand 133446 states and 172138 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:24,472 INFO L93 Difference]: Finished difference Result 310972 states and 401080 transitions. [2021-11-23 03:03:24,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:03:24,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-23 03:03:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:25,475 INFO L225 Difference]: With dead ends: 310972 [2021-11-23 03:03:25,476 INFO L226 Difference]: Without dead ends: 177699 [2021-11-23 03:03:25,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:25,959 INFO L933 BasicCegarLoop]: 86310 mSDtfsCounter, 71478 mSDsluCounter, 86130 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71478 SdHoareTripleChecker+Valid, 172440 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:25,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71478 Valid, 172440 Invalid, 109 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [21 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:03:26,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177699 states. [2021-11-23 03:03:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177699 to 177675. [2021-11-23 03:03:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177675 states, 177291 states have (on average 1.2881872176252602) internal successors, (228384), 177363 states have internal predecessors, (228384), 349 states have call successors, (349), 30 states have call predecessors, (349), 30 states have return successors, (349), 346 states have call predecessors, (349), 349 states have call successors, (349) [2021-11-23 03:03:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177675 states to 177675 states and 229082 transitions. [2021-11-23 03:03:30,825 INFO L78 Accepts]: Start accepts. Automaton has 177675 states and 229082 transitions. Word has length 100 [2021-11-23 03:03:30,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:30,826 INFO L470 AbstractCegarLoop]: Abstraction has 177675 states and 229082 transitions. [2021-11-23 03:03:30,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand 177675 states and 229082 transitions. [2021-11-23 03:03:30,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 03:03:30,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:30,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:30,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:03:30,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 03:03:30,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:30,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1715088309, now seen corresponding path program 1 times [2021-11-23 03:03:30,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 03:03:30,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791779381] [2021-11-23 03:03:30,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:30,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:31,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:03:31,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 03:03:31,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791779381] [2021-11-23 03:03:31,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791779381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:31,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:31,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:03:31,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446383750] [2021-11-23 03:03:31,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:31,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:03:31,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 03:03:31,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:03:31,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:31,150 INFO L87 Difference]: Start difference. First operand 177675 states and 229082 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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)