./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.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 4c7dacdb83136a121d00fa327d1c2830046f2fd343e670a23a7fced247adecf0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:34:57,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:34:57,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:34:57,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:34:57,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:34:57,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:34:57,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:34:57,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:34:57,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:34:57,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:34:57,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:34:57,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:34:57,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:34:57,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:34:57,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:34:57,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:34:57,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:34:57,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:34:57,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:34:57,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:34:57,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:34:57,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:34:57,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:34:57,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:34:57,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:34:57,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:34:57,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:34:57,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:34:57,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:34:57,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:34:57,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:34:57,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:34:57,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:34:57,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:34:57,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:34:57,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:34:57,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:34:57,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:34:57,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:34:57,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:34:57,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:34:57,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:34:57,812 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:34:57,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:34:57,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:34:57,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:34:57,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:34:57,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:34:57,814 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:34:57,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:34:57,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:34:57,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:34:57,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:34:57,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:34:57,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:34:57,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:34:57,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:34:57,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:34:57,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:34:57,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:34:57,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:34:57,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:34:57,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:34:57,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:34:57,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:34:57,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:34:57,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:34:57,817 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:34:57,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:34:57,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:34:57,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:34:57,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7dacdb83136a121d00fa327d1c2830046f2fd343e670a23a7fced247adecf0 [2021-11-06 18:34:57,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:34:57,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:34:57,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:34:57,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:34:57,983 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:34:57,984 INFO L432 ainManager$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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 18:34:58,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/717cacad2/edad95e455e343959ef7e18318024e2c/FLAGdce37ad8a [2021-11-06 18:34:58,710 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:34:58,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 18:34:58,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/717cacad2/edad95e455e343959ef7e18318024e2c/FLAGdce37ad8a [2021-11-06 18:34:58,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/717cacad2/edad95e455e343959ef7e18318024e2c [2021-11-06 18:34:58,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:34:58,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:34:58,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:34:58,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:34:58,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:34:58,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:34:58" (1/1) ... [2021-11-06 18:34:58,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653a4b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:58, skipping insertion in model container [2021-11-06 18:34:58,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:34:58" (1/1) ... [2021-11-06 18:34:58,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:34:58,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:35:02,215 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525646,525659] [2021-11-06 18:35:02,218 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525812,525825] [2021-11-06 18:35:02,218 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525976,525989] [2021-11-06 18:35:02,218 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[526141,526154] [2021-11-06 18:35:02,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:35:02,303 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:35:02,718 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525646,525659] [2021-11-06 18:35:02,719 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525812,525825] [2021-11-06 18:35:02,720 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[525976,525989] [2021-11-06 18:35:02,720 WARN L228 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-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i[526141,526154] [2021-11-06 18:35:02,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:35:02,925 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:35:02,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02 WrapperNode [2021-11-06 18:35:02,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:35:02,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:35:02,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:35:02,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:35:02,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:03,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:05,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:35:05,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:35:05,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:35:05,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:35:05,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:05,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:06,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:06,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:07,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:08,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:08,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:09,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:35:09,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:35:09,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:35:09,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:35:09,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (1/1) ... [2021-11-06 18:35:09,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:35:09,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:35:09,107 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) [2021-11-06 18:35:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-06 18:35:09,115 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 [2021-11-06 18:35:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-06 18:35:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 18:35:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-06 18:35:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-06 18:35:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:35:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-06 18:35:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-06 18:35:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:35:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:35:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:35:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:35:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:35:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:35:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:35:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 18:35:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:35:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:35:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-06 18:35:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-06 18:35:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:35:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:35:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-06 18:35:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-06 18:35:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:35:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:35:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 18:35:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:35:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:35:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:35:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-06 18:35:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-06 18:35:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:35:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-06 18:35:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-06 18:35:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:35:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:35:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:48:59,148 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:48:59,149 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:48:59,149 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:48:59,149 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:48:59,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:48:59,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:49:02,887 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:49:02,888 INFO L299 CfgBuilder]: Removed 20450 assume(true) statements. [2021-11-06 18:49:02,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:49:02 BoogieIcfgContainer [2021-11-06 18:49:02,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:49:02,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:49:02,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:49:02,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:49:02,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:34:58" (1/3) ... [2021-11-06 18:49:02,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50067e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:49:02, skipping insertion in model container [2021-11-06 18:49:02,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:35:02" (2/3) ... [2021-11-06 18:49:02,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50067e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:49:02, skipping insertion in model container [2021-11-06 18:49:02,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:49:02" (3/3) ... [2021-11-06 18:49:02,914 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 18:49:02,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:49:02,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-06 18:49:03,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:49:03,005 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 [2021-11-06 18:49:03,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-06 18:49:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 27233 states, 27192 states have (on average 1.4480729626360693) internal successors, (39376), 27197 states have internal predecessors, (39376), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-06 18:49:03,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 18:49:03,261 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:49:03,262 INFO L513 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] [2021-11-06 18:49:03,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 18:49:03,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:49:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1392546468, now seen corresponding path program 1 times [2021-11-06 18:49:03,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:49:03,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861186242] [2021-11-06 18:49:03,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:49:03,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:49:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:49:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:49:04,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:49:04,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861186242] [2021-11-06 18:49:04,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861186242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:49:04,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:49:04,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:49:04,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970564942] [2021-11-06 18:49:04,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:49:04,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:49:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:49:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:49:04,380 INFO L87 Difference]: Start difference. First operand has 27233 states, 27192 states have (on average 1.4480729626360693) internal successors, (39376), 27197 states have internal predecessors, (39376), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-06 18:49:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:49:08,313 INFO L93 Difference]: Finished difference Result 81011 states and 117335 transitions. [2021-11-06 18:49:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:49:08,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-06 18:49:08,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:49:08,607 INFO L225 Difference]: With dead ends: 81011 [2021-11-06 18:49:08,607 INFO L226 Difference]: Without dead ends: 53645 [2021-11-06 18:49:08,922 INFO L786 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 [2021-11-06 18:49:08,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53645 states. [2021-11-06 18:49:09,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53645 to 53645. [2021-11-06 18:49:10,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53645 states, 53569 states have (on average 1.438350538557748) internal successors, (77051), 53574 states have internal predecessors, (77051), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-06 18:49:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53645 states to 53645 states and 77151 transitions. [2021-11-06 18:49:10,221 INFO L78 Accepts]: Start accepts. Automaton has 53645 states and 77151 transitions. Word has length 60 [2021-11-06 18:49:10,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:49:10,222 INFO L470 AbstractCegarLoop]: Abstraction has 53645 states and 77151 transitions. [2021-11-06 18:49:10,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-06 18:49:10,222 INFO L276 IsEmpty]: Start isEmpty. Operand 53645 states and 77151 transitions. [2021-11-06 18:49:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 18:49:10,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:49:10,234 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 18:49:10,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:49:10,235 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 18:49:10,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:49:10,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1450889471, now seen corresponding path program 1 times [2021-11-06 18:49:10,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:49:10,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769898770] [2021-11-06 18:49:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:49:10,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:49:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:49:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 18:49:11,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:49:11,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769898770] [2021-11-06 18:49:11,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769898770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:49:11,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:49:11,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:49:11,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077783146] [2021-11-06 18:49:11,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:49:11,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:49:11,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:49:11,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:49:11,196 INFO L87 Difference]: Start difference. First operand 53645 states and 77151 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2021-11-06 18:49:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:49:12,365 INFO L93 Difference]: Finished difference Result 53645 states and 77151 transitions. [2021-11-06 18:49:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:49:12,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-06 18:49:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:49:12,692 INFO L225 Difference]: With dead ends: 53645 [2021-11-06 18:49:12,693 INFO L226 Difference]: Without dead ends: 53641 [2021-11-06 18:49:12,711 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:49:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53641 states. [2021-11-06 18:49:13,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53641 to 53641. [2021-11-06 18:49:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53641 states, 53567 states have (on average 1.4383295685776691) internal successors, (77047), 53570 states have internal predecessors, (77047), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-06 18:49:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53641 states to 53641 states and 77147 transitions. [2021-11-06 18:49:14,100 INFO L78 Accepts]: Start accepts. Automaton has 53641 states and 77147 transitions. Word has length 85 [2021-11-06 18:49:14,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:49:14,102 INFO L470 AbstractCegarLoop]: Abstraction has 53641 states and 77147 transitions. [2021-11-06 18:49:14,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2021-11-06 18:49:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 53641 states and 77147 transitions. [2021-11-06 18:49:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-06 18:49:14,108 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:49:14,108 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 18:49:14,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:49:14,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 18:49:14,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:49:14,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1561270628, now seen corresponding path program 1 times [2021-11-06 18:49:14,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:49:14,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314296183] [2021-11-06 18:49:14,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:49:14,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15