./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.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-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.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 b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:15:27,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:15:27,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:15:27,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:15:27,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:15:27,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:15:27,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:15:27,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:15:27,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:15:27,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:15:27,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:15:27,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:15:27,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:15:27,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:15:27,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:15:27,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:15:27,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:15:27,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:15:27,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:15:27,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:15:27,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:15:27,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:15:27,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:15:27,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:15:27,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:15:27,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:15:27,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:15:27,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:15:27,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:15:27,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:15:27,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:15:27,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:15:27,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:15:27,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:15:27,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:15:27,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:15:27,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:15:27,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:15:27,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:15:27,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:15:27,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:15:27,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:15:27,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:15:27,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:15:27,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:15:27,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:15:27,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:15:27,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:15:27,740 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:15:27,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:15:27,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:15:27,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:15:27,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:15:27,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:15:27,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:15:27,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:15:27,742 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:15:27,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:15:27,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:15:27,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:15:27,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:15:27,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:15:27,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:15:27,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:15:27,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:15:27,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:15:27,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:15:27,744 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:15:27,744 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:15:27,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:15:27,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:15:27,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-23 02:15:27,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:15:27,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:15:27,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:15:27,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:15:27,954 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:15:27,955 INFO L432 ainManager$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-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-23 02:15:28,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7370e0d/26907dcb0b18428e83925e5647abf4b3/FLAGde23f5cac [2021-11-23 02:15:28,654 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:15:28,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-23 02:15:28,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7370e0d/26907dcb0b18428e83925e5647abf4b3/FLAGde23f5cac [2021-11-23 02:15:29,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7370e0d/26907dcb0b18428e83925e5647abf4b3 [2021-11-23 02:15:29,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:15:29,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:15:29,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:15:29,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:15:29,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:15:29,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:29" (1/1) ... [2021-11-23 02:15:29,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5175bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:29, skipping insertion in model container [2021-11-23 02:15:29,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:29" (1/1) ... [2021-11-23 02:15:29,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:15:29,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:15:31,161 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-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-23 02:15:31,164 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-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-23 02:15:31,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:15:31,206 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:15:31,437 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-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-23 02:15:31,439 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-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-23 02:15:31,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:15:31,564 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:15:31,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31 WrapperNode [2021-11-23 02:15:31,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:15:31,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:15:31,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:15:31,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:15:31,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:31,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:32,217 INFO L137 Inliner]: procedures = 421, calls = 1839, calls flagged for inlining = 777, calls inlined = 3312, statements flattened = 35930 [2021-11-23 02:15:32,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:15:32,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:15:32,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:15:32,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:15:32,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:32,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:32,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:32,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:32,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:32,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:33,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:33,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:15:33,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:15:33,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:15:33,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:15:33,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (1/1) ... [2021-11-23 02:15:33,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:15:33,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:15:33,139 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 02:15:33,159 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 02:15:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:15:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:15:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:15:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:15:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:15:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:15:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:15:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:15:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_req_queue_run [2021-11-23 02:15:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_req_queue_run [2021-11-23 02:15:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_ctx_complete [2021-11-23 02:15:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_ctx_complete [2021-11-23 02:15:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:15:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:15:33,776 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:15:33,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:15:45,679 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 02:15:45,679 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 02:15:45,680 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 02:15:45,680 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:15:45,684 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:15:45,713 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:15:45,714 INFO L301 CfgBuilder]: Removed 54 assume(true) statements. [2021-11-23 02:15:45,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:45 BoogieIcfgContainer [2021-11-23 02:15:45,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:15:45,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:15:45,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:15:45,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:15:45,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:15:29" (1/3) ... [2021-11-23 02:15:45,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5896b68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:15:45, skipping insertion in model container [2021-11-23 02:15:45,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:31" (2/3) ... [2021-11-23 02:15:45,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5896b68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:15:45, skipping insertion in model container [2021-11-23 02:15:45,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:45" (3/3) ... [2021-11-23 02:15:45,728 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-23 02:15:45,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:15:45,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2021-11-23 02:15:45,797 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:15:45,805 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 02:15:45,805 INFO L340 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2021-11-23 02:15:45,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 8136 states, 8024 states have (on average 1.426221335992024) internal successors, (11444), 8128 states have internal predecessors, (11444), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-23 02:15:45,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 02:15:45,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:45,925 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] [2021-11-23 02:15:45,926 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:15:45,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1148073283, now seen corresponding path program 1 times [2021-11-23 02:15:45,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:15:45,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196998736] [2021-11-23 02:15:45,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:45,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:46,407 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 02:15:46,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:15:46,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196998736] [2021-11-23 02:15:46,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196998736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:46,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:46,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:46,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71353491] [2021-11-23 02:15:46,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:46,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:46,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:15:46,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:46,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:46,445 INFO L87 Difference]: Start difference. First operand has 8136 states, 8024 states have (on average 1.426221335992024) internal successors, (11444), 8128 states have internal predecessors, (11444), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 02:15:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:47,127 INFO L93 Difference]: Finished difference Result 20743 states and 29355 transitions. [2021-11-23 02:15:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:47,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-23 02:15:47,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:47,187 INFO L225 Difference]: With dead ends: 20743 [2021-11-23 02:15:47,188 INFO L226 Difference]: Without dead ends: 12023 [2021-11-23 02:15:47,210 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 02:15:47,213 INFO L933 BasicCegarLoop]: 10986 mSDtfsCounter, 6417 mSDsluCounter, 10905 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6417 SdHoareTripleChecker+Valid, 21891 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:47,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6417 Valid, 21891 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:15:47,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12023 states. [2021-11-23 02:15:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12023 to 11927. [2021-11-23 02:15:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11927 states, 11793 states have (on average 1.3494445857712203) internal successors, (15914), 11912 states have internal predecessors, (15914), 51 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-23 02:15:47,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11927 states to 11927 states and 16016 transitions. [2021-11-23 02:15:47,484 INFO L78 Accepts]: Start accepts. Automaton has 11927 states and 16016 transitions. Word has length 72 [2021-11-23 02:15:47,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:47,485 INFO L470 AbstractCegarLoop]: Abstraction has 11927 states and 16016 transitions. [2021-11-23 02:15:47,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 02:15:47,485 INFO L276 IsEmpty]: Start isEmpty. Operand 11927 states and 16016 transitions. [2021-11-23 02:15:47,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 02:15:47,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:47,488 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] [2021-11-23 02:15:47,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:15:47,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:15:47,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:47,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1985713043, now seen corresponding path program 1 times [2021-11-23 02:15:47,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:15:47,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192115837] [2021-11-23 02:15:47,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:47,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:47,617 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 02:15:47,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:15:47,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192115837] [2021-11-23 02:15:47,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192115837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:47,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:47,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:47,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398704676] [2021-11-23 02:15:47,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:47,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:47,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:15:47,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:47,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:47,621 INFO L87 Difference]: Start difference. First operand 11927 states and 16016 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 02:15:47,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:47,970 INFO L93 Difference]: Finished difference Result 28287 states and 37945 transitions. [2021-11-23 02:15:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:47,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-23 02:15:47,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:48,039 INFO L225 Difference]: With dead ends: 28287 [2021-11-23 02:15:48,039 INFO L226 Difference]: Without dead ends: 16485 [2021-11-23 02:15:48,067 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 02:15:48,071 INFO L933 BasicCegarLoop]: 10368 mSDtfsCounter, 5042 mSDsluCounter, 10095 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5042 SdHoareTripleChecker+Valid, 20463 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:48,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5042 Valid, 20463 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:15:48,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16485 states. [2021-11-23 02:15:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16485 to 16397. [2021-11-23 02:15:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16397 states, 16242 states have (on average 1.3458317941140254) internal successors, (21859), 16374 states have internal predecessors, (21859), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2021-11-23 02:15:48,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16397 states to 16397 states and 21995 transitions. [2021-11-23 02:15:48,637 INFO L78 Accepts]: Start accepts. Automaton has 16397 states and 21995 transitions. Word has length 75 [2021-11-23 02:15:48,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:48,637 INFO L470 AbstractCegarLoop]: Abstraction has 16397 states and 21995 transitions. [2021-11-23 02:15:48,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 02:15:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 16397 states and 21995 transitions. [2021-11-23 02:15:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-23 02:15:48,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:48,640 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:15:48,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:15:48,640 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:15:48,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 72707866, now seen corresponding path program 1 times [2021-11-23 02:15:48,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:15:48,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151508647] [2021-11-23 02:15:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:48,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:48,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:15:48,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151508647] [2021-11-23 02:15:48,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151508647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:48,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:48,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:48,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326950947] [2021-11-23 02:15:48,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:48,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:48,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:15:48,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:48,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:48,755 INFO L87 Difference]: Start difference. First operand 16397 states and 21995 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 02:15:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:49,118 INFO L93 Difference]: Finished difference Result 37796 states and 50654 transitions. [2021-11-23 02:15:49,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:49,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 88 [2021-11-23 02:15:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:49,169 INFO L225 Difference]: With dead ends: 37796 [2021-11-23 02:15:49,170 INFO L226 Difference]: Without dead ends: 21524 [2021-11-23 02:15:49,202 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 02:15:49,203 INFO L933 BasicCegarLoop]: 10170 mSDtfsCounter, 5889 mSDsluCounter, 10088 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5889 SdHoareTripleChecker+Valid, 20258 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:49,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5889 Valid, 20258 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:15:49,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21524 states. [2021-11-23 02:15:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21524 to 21434. [2021-11-23 02:15:49,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21434 states, 21252 states have (on average 1.3438735177865613) internal successors, (28560), 21400 states have internal predecessors, (28560), 91 states have call successors, (91), 12 states have call predecessors, (91), 12 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2021-11-23 02:15:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21434 states to 21434 states and 28742 transitions. [2021-11-23 02:15:49,692 INFO L78 Accepts]: Start accepts. Automaton has 21434 states and 28742 transitions. Word has length 88 [2021-11-23 02:15:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:49,693 INFO L470 AbstractCegarLoop]: Abstraction has 21434 states and 28742 transitions. [2021-11-23 02:15:49,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 02:15:49,695 INFO L276 IsEmpty]: Start isEmpty. Operand 21434 states and 28742 transitions. [2021-11-23 02:15:49,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 02:15:49,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:49,697 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:15:49,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:15:49,698 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:15:49,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:49,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1881483391, now seen corresponding path program 1 times [2021-11-23 02:15:49,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:15:49,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304791683] [2021-11-23 02:15:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:49,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:49,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:15:49,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304791683] [2021-11-23 02:15:49,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304791683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:49,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:49,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:49,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808668197] [2021-11-23 02:15:49,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:49,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:49,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:15:49,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:49,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:49,843 INFO L87 Difference]: Start difference. First operand 21434 states and 28742 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 02:15:50,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:50,555 INFO L93 Difference]: Finished difference Result 54675 states and 73343 transitions. [2021-11-23 02:15:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:50,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2021-11-23 02:15:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:50,644 INFO L225 Difference]: With dead ends: 54675 [2021-11-23 02:15:50,644 INFO L226 Difference]: Without dead ends: 33366 [2021-11-23 02:15:50,696 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 02:15:50,700 INFO L933 BasicCegarLoop]: 15224 mSDtfsCounter, 9972 mSDsluCounter, 10125 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9972 SdHoareTripleChecker+Valid, 25349 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:50,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9972 Valid, 25349 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:15:50,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33366 states. [2021-11-23 02:15:51,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33366 to 33192. [2021-11-23 02:15:51,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33192 states, 32956 states have (on average 1.345824736011652) internal successors, (44353), 33143 states have internal predecessors, (44353), 139 states have call successors, (139), 18 states have call predecessors, (139), 18 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2021-11-23 02:15:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33192 states to 33192 states and 44631 transitions. [2021-11-23 02:15:51,413 INFO L78 Accepts]: Start accepts. Automaton has 33192 states and 44631 transitions. Word has length 92 [2021-11-23 02:15:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:51,414 INFO L470 AbstractCegarLoop]: Abstraction has 33192 states and 44631 transitions. [2021-11-23 02:15:51,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 02:15:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 33192 states and 44631 transitions. [2021-11-23 02:15:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-23 02:15:51,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:51,419 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:15:51,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:15:51,419 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:15:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:51,420 INFO L85 PathProgramCache]: Analyzing trace with hash 191523526, now seen corresponding path program 1 times [2021-11-23 02:15:51,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:15:51,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529148496] [2021-11-23 02:15:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:51,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:51,518 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 02:15:51,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:15:51,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529148496] [2021-11-23 02:15:51,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529148496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:51,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:51,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:51,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269245402] [2021-11-23 02:15:51,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:51,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:51,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:15:51,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:51,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:51,524 INFO L87 Difference]: Start difference. First operand 33192 states and 44631 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 02:15:52,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:52,528 INFO L93 Difference]: Finished difference Result 93868 states and 126605 transitions. [2021-11-23 02:15:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:52,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-11-23 02:15:52,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:52,674 INFO L225 Difference]: With dead ends: 93868 [2021-11-23 02:15:52,674 INFO L226 Difference]: Without dead ends: 60801 [2021-11-23 02:15:52,729 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 02:15:52,730 INFO L933 BasicCegarLoop]: 10161 mSDtfsCounter, 9388 mSDsluCounter, 10088 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9388 SdHoareTripleChecker+Valid, 20249 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:52,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9388 Valid, 20249 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:15:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60801 states. [2021-11-23 02:15:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60801 to 60601. [2021-11-23 02:15:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60601 states, 60234 states have (on average 1.3518112693827407) internal successors, (81425), 60520 states have internal predecessors, (81425), 260 states have call successors, (260), 28 states have call predecessors, (260), 28 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2021-11-23 02:15:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60601 states to 60601 states and 81945 transitions. [2021-11-23 02:15:54,188 INFO L78 Accepts]: Start accepts. Automaton has 60601 states and 81945 transitions. Word has length 111 [2021-11-23 02:15:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:54,189 INFO L470 AbstractCegarLoop]: Abstraction has 60601 states and 81945 transitions. [2021-11-23 02:15:54,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 02:15:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 60601 states and 81945 transitions. [2021-11-23 02:15:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 02:15:54,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:54,192 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-23 02:15:54,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:15:54,192 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:15:54,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2073089556, now seen corresponding path program 1 times [2021-11-23 02:15:54,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:15:54,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003967501] [2021-11-23 02:15:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:54,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:54,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:15:54,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003967501] [2021-11-23 02:15:54,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003967501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:54,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:54,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:54,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903103281] [2021-11-23 02:15:54,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:54,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:54,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:15:54,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:54,327 INFO L87 Difference]: Start difference. First operand 60601 states and 81945 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 02:15:56,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:56,057 INFO L93 Difference]: Finished difference Result 180821 states and 244743 transitions. [2021-11-23 02:15:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2021-11-23 02:15:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:56,569 INFO L225 Difference]: With dead ends: 180821 [2021-11-23 02:15:56,570 INFO L226 Difference]: Without dead ends: 120146 [2021-11-23 02:15:56,669 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 02:15:56,671 INFO L933 BasicCegarLoop]: 14994 mSDtfsCounter, 9927 mSDsluCounter, 10113 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9927 SdHoareTripleChecker+Valid, 25107 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:56,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9927 Valid, 25107 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:15:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120146 states. [2021-11-23 02:15:58,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120146 to 119988. [2021-11-23 02:15:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119988 states, 119333 states have (on average 1.3534143950122766) internal successors, (161507), 119827 states have internal predecessors, (161507), 520 states have call successors, (520), 56 states have call predecessors, (520), 56 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-23 02:15:59,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119988 states to 119988 states and 162547 transitions. [2021-11-23 02:15:59,182 INFO L78 Accepts]: Start accepts. Automaton has 119988 states and 162547 transitions. Word has length 121 [2021-11-23 02:15:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:59,183 INFO L470 AbstractCegarLoop]: Abstraction has 119988 states and 162547 transitions. [2021-11-23 02:15:59,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 02:15:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 119988 states and 162547 transitions. [2021-11-23 02:15:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 02:15:59,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:59,186 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-23 02:15:59,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:15:59,187 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:15:59,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:59,187 INFO L85 PathProgramCache]: Analyzing trace with hash -850070442, now seen corresponding path program 1 times [2021-11-23 02:15:59,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:15:59,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627300827] [2021-11-23 02:15:59,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:59,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:59,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:15:59,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627300827] [2021-11-23 02:15:59,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627300827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:59,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:59,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:59,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058062027] [2021-11-23 02:15:59,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:59,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:59,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:15:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:59,318 INFO L87 Difference]: Start difference. First operand 119988 states and 162547 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 02:16:02,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:02,386 INFO L93 Difference]: Finished difference Result 299579 states and 405931 transitions. [2021-11-23 02:16:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:16:02,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2021-11-23 02:16:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:02,877 INFO L225 Difference]: With dead ends: 299579 [2021-11-23 02:16:02,877 INFO L226 Difference]: Without dead ends: 179778 [2021-11-23 02:16:03,070 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 02:16:03,071 INFO L933 BasicCegarLoop]: 20060 mSDtfsCounter, 9931 mSDsluCounter, 10109 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9931 SdHoareTripleChecker+Valid, 30169 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:03,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9931 Valid, 30169 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:16:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179778 states. [2021-11-23 02:16:06,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179778 to 179620. [2021-11-23 02:16:06,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179620 states, 178677 states have (on average 1.3536996927416511) internal successors, (241875), 179379 states have internal predecessors, (241875), 780 states have call successors, (780), 84 states have call predecessors, (780), 84 states have return successors, (780), 780 states have call predecessors, (780), 780 states have call successors, (780) [2021-11-23 02:16:06,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179620 states to 179620 states and 243435 transitions. [2021-11-23 02:16:06,916 INFO L78 Accepts]: Start accepts. Automaton has 179620 states and 243435 transitions. Word has length 121 [2021-11-23 02:16:06,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:06,917 INFO L470 AbstractCegarLoop]: Abstraction has 179620 states and 243435 transitions. [2021-11-23 02:16:06,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 02:16:06,917 INFO L276 IsEmpty]: Start isEmpty. Operand 179620 states and 243435 transitions. [2021-11-23 02:16:06,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 02:16:06,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:06,920 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:16:06,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:16:06,920 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:16:06,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:06,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1560483893, now seen corresponding path program 1 times [2021-11-23 02:16:06,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:16:06,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470981228] [2021-11-23 02:16:06,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:06,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:16:07,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:16:07,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470981228] [2021-11-23 02:16:07,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470981228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:07,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:07,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:16:07,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244133634] [2021-11-23 02:16:07,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:07,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:16:07,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:16:07,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:16:07,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:07,390 INFO L87 Difference]: Start difference. First operand 179620 states and 243435 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 02:16:11,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:11,645 INFO L93 Difference]: Finished difference Result 406498 states and 550533 transitions. [2021-11-23 02:16:11,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:16:11,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 129 [2021-11-23 02:16:11,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:12,361 INFO L225 Difference]: With dead ends: 406498 [2021-11-23 02:16:12,361 INFO L226 Difference]: Without dead ends: 227065 [2021-11-23 02:16:12,687 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 02:16:12,688 INFO L933 BasicCegarLoop]: 15039 mSDtfsCounter, 6277 mSDsluCounter, 8855 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6277 SdHoareTripleChecker+Valid, 23894 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:12,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6277 Valid, 23894 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:16:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227065 states. [2021-11-23 02:16:16,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227065 to 226920. [2021-11-23 02:16:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226920 states, 225737 states have (on average 1.351103275050169) internal successors, (304994), 226583 states have internal predecessors, (304994), 972 states have call successors, (972), 132 states have call predecessors, (972), 132 states have return successors, (972), 972 states have call predecessors, (972), 972 states have call successors, (972) [2021-11-23 02:16:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226920 states to 226920 states and 306938 transitions. [2021-11-23 02:16:17,715 INFO L78 Accepts]: Start accepts. Automaton has 226920 states and 306938 transitions. Word has length 129 [2021-11-23 02:16:17,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:17,716 INFO L470 AbstractCegarLoop]: Abstraction has 226920 states and 306938 transitions. [2021-11-23 02:16:17,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 02:16:17,716 INFO L276 IsEmpty]: Start isEmpty. Operand 226920 states and 306938 transitions. [2021-11-23 02:16:17,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-23 02:16:17,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:17,720 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 02:16:17,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:16:17,721 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ezusb_req_queue_runErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-23 02:16:17,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:17,721 INFO L85 PathProgramCache]: Analyzing trace with hash -890467853, now seen corresponding path program 1 times [2021-11-23 02:16:17,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:16:17,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063567188] [2021-11-23 02:16:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:17,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 02:16:17,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:16:17,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063567188] [2021-11-23 02:16:17,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063567188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:17,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:17,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:16:17,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063119679] [2021-11-23 02:16:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:17,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:16:17,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:16:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:16:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:16:17,832 INFO L87 Difference]: Start difference. First operand 226920 states and 306938 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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)