./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-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-via-via-rhine.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 c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:26:58,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:26:58,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:26:58,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:26:58,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:26:58,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:26:58,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:26:58,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:26:58,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:26:58,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:26:58,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:26:58,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:26:58,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:26:58,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:26:58,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:26:58,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:26:58,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:26:58,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:26:58,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:26:58,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:26:58,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:26:58,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:26:58,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:26:58,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:26:58,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:26:58,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:26:58,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:26:58,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:26:58,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:26:58,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:26:58,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:26:58,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:26:58,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:26:58,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:26:58,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:26:58,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:26:58,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:26:58,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:26:58,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:26:58,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:26:58,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:26:58,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:26:58,893 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:26:58,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:26:58,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:26:58,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:26:58,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:26:58,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:26:58,896 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:26:58,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:26:58,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:26:58,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:26:58,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:26:58,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:26:58,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:26:58,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:26:58,899 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:26:58,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:26:58,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:26:58,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:26:58,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:26:58,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:26:58,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:26:58,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:26:58,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:26:58,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:26:58,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:26:58,901 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:26:58,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:26:58,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:26:58,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:26:58,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2021-11-05 20:26:59,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:26:59,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:26:59,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:26:59,274 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:26:59,274 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:26:59,276 INFO L432 ainManager$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-via-via-rhine.cil.i [2021-11-05 20:26:59,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7565a44d/64c2c96b61c4490a88c47e3cb703433a/FLAGd0341d3f1 [2021-11-05 20:27:00,122 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:27:00,123 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-via-via-rhine.cil.i [2021-11-05 20:27:00,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7565a44d/64c2c96b61c4490a88c47e3cb703433a/FLAGd0341d3f1 [2021-11-05 20:27:00,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7565a44d/64c2c96b61c4490a88c47e3cb703433a [2021-11-05 20:27:00,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:27:00,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:27:00,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:27:00,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:27:00,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:27:00,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:27:00" (1/1) ... [2021-11-05 20:27:00,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbc2b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:00, skipping insertion in model container [2021-11-05 20:27:00,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:27:00" (1/1) ... [2021-11-05 20:27:00,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:27:00,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:27:03,836 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-via-via-rhine.cil.i[380944,380957] [2021-11-05 20:27:03,839 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-via-via-rhine.cil.i[381110,381123] [2021-11-05 20:27:03,840 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-via-via-rhine.cil.i[381274,381287] [2021-11-05 20:27:03,840 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-via-via-rhine.cil.i[381439,381452] [2021-11-05 20:27:03,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:27:03,961 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:27:04,353 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-via-via-rhine.cil.i[380944,380957] [2021-11-05 20:27:04,355 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-via-via-rhine.cil.i[381110,381123] [2021-11-05 20:27:04,355 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-via-via-rhine.cil.i[381274,381287] [2021-11-05 20:27:04,355 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-via-via-rhine.cil.i[381439,381452] [2021-11-05 20:27:04,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:27:04,725 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:27:04,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04 WrapperNode [2021-11-05 20:27:04,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:27:04,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:27:04,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:27:04,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:27:04,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:04,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:07,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:27:07,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:27:07,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:27:07,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:27:07,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:07,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:08,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:08,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:10,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:10,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:10,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:11,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:27:11,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:27:11,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:27:11,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:27:11,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (1/1) ... [2021-11-05 20:27:11,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:27:11,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:27:11,765 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) [2021-11-05 20:27:11,788 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 [2021-11-05 20:27:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:27:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:27:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:27:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:27:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:27:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 20:27:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:27:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:27:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:27:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 20:27:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:27:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:27:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:27:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:27:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:38:11,126 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:38:11,126 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:38:11,127 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 20:38:11,127 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 20:38:11,127 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 20:38:11,127 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:38:11,128 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-05 20:38:11,128 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:38:11,129 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:38:11,131 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:38:11,133 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:38:11,135 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-05 20:38:11,136 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 20:38:11,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:38:11,217 INFO L299 CfgBuilder]: Removed 26354 assume(true) statements. [2021-11-05 20:38:11,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:38:11 BoogieIcfgContainer [2021-11-05 20:38:11,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:38:11,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:38:11,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:38:11,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:38:11,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:27:00" (1/3) ... [2021-11-05 20:38:11,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fd165c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:38:11, skipping insertion in model container [2021-11-05 20:38:11,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:27:04" (2/3) ... [2021-11-05 20:38:11,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fd165c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:38:11, skipping insertion in model container [2021-11-05 20:38:11,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:38:11" (3/3) ... [2021-11-05 20:38:11,243 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-05 20:38:11,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:38:11,247 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 208 error locations. [2021-11-05 20:38:11,377 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:38:11,386 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 [2021-11-05 20:38:11,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 208 error locations. [2021-11-05 20:38:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 21688 states, 21480 states have (on average 1.3208100558659217) internal successors, (28371), 21687 states have internal predecessors, (28371), 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) [2021-11-05 20:38:11,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-05 20:38:11,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:38:11,692 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] [2021-11-05 20:38:11,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-05 20:38:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:38:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1280611, now seen corresponding path program 1 times [2021-11-05 20:38:11,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:38:11,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146456734] [2021-11-05 20:38:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:38:11,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:38:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:38:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:38:12,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:38:12,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146456734] [2021-11-05 20:38:12,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146456734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:38:12,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:38:12,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:38:12,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29262434] [2021-11-05 20:38:12,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:38:12,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:38:12,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:38:12,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:38:12,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:13,022 INFO L87 Difference]: Start difference. First operand has 21688 states, 21480 states have (on average 1.3208100558659217) internal successors, (28371), 21687 states have internal predecessors, (28371), 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) 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) [2021-11-05 20:38:15,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:38:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:38:17,614 INFO L93 Difference]: Finished difference Result 64430 states and 84277 transitions. [2021-11-05 20:38:17,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:38:17,617 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 [2021-11-05 20:38:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:38:17,820 INFO L225 Difference]: With dead ends: 64430 [2021-11-05 20:38:17,821 INFO L226 Difference]: Without dead ends: 42136 [2021-11-05 20:38:17,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:17,893 INFO L933 BasicCegarLoop]: 27708 mSDtfsCounter, 27409 mSDsluCounter, 27650 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2231.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27409 SdHoareTripleChecker+Valid, 55358 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 106.04ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2437.66ms IncrementalHoareTripleChecker+Time [2021-11-05 20:38:17,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27409 Valid, 55358 Invalid, 44 Unknown, 0 Unchecked, 106.04ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 2437.66ms Time] [2021-11-05 20:38:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42136 states. [2021-11-05 20:38:18,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42136 to 41744. [2021-11-05 20:38:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41744 states, 41536 states have (on average 1.2855113636363635) internal successors, (53395), 41743 states have internal predecessors, (53395), 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) [2021-11-05 20:38:19,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41744 states to 41744 states and 53395 transitions. [2021-11-05 20:38:19,308 INFO L78 Accepts]: Start accepts. Automaton has 41744 states and 53395 transitions. Word has length 60 [2021-11-05 20:38:19,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:38:19,311 INFO L470 AbstractCegarLoop]: Abstraction has 41744 states and 53395 transitions. [2021-11-05 20:38:19,311 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) [2021-11-05 20:38:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 41744 states and 53395 transitions. [2021-11-05 20:38:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 20:38:19,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:38:19,319 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] [2021-11-05 20:38:19,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:38:19,321 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-05 20:38:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:38:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2122153375, now seen corresponding path program 1 times [2021-11-05 20:38:19,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:38:19,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893741076] [2021-11-05 20:38:19,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:38:19,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:38:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:38:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:38:19,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:38:19,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893741076] [2021-11-05 20:38:19,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893741076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:38:19,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:38:19,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:38:19,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168972281] [2021-11-05 20:38:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:38:19,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:38:19,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:38:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:38:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:19,982 INFO L87 Difference]: Start difference. First operand 41744 states and 53395 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-05 20:38:22,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:38:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:38:24,012 INFO L93 Difference]: Finished difference Result 123918 states and 158531 transitions. [2021-11-05 20:38:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:38:24,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2021-11-05 20:38:24,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:38:24,222 INFO L225 Difference]: With dead ends: 123918 [2021-11-05 20:38:24,222 INFO L226 Difference]: Without dead ends: 82290 [2021-11-05 20:38:24,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:24,329 INFO L933 BasicCegarLoop]: 26911 mSDtfsCounter, 26084 mSDsluCounter, 26830 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2261.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26084 SdHoareTripleChecker+Valid, 53741 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.81ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2485.52ms IncrementalHoareTripleChecker+Time [2021-11-05 20:38:24,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26084 Valid, 53741 Invalid, 95 Unknown, 0 Unchecked, 64.81ms Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 2485.52ms Time] [2021-11-05 20:38:24,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82290 states. [2021-11-05 20:38:26,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82290 to 81278. [2021-11-05 20:38:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81278 states, 81070 states have (on average 1.2866041692364623) internal successors, (104305), 81277 states have internal predecessors, (104305), 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) [2021-11-05 20:38:26,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81278 states to 81278 states and 104305 transitions. [2021-11-05 20:38:26,612 INFO L78 Accepts]: Start accepts. Automaton has 81278 states and 104305 transitions. Word has length 64 [2021-11-05 20:38:26,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:38:26,612 INFO L470 AbstractCegarLoop]: Abstraction has 81278 states and 104305 transitions. [2021-11-05 20:38:26,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-05 20:38:26,613 INFO L276 IsEmpty]: Start isEmpty. Operand 81278 states and 104305 transitions. [2021-11-05 20:38:26,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 20:38:26,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:38:26,615 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] [2021-11-05 20:38:26,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:38:26,615 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-05 20:38:26,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:38:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1801691808, now seen corresponding path program 1 times [2021-11-05 20:38:26,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:38:26,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707441332] [2021-11-05 20:38:26,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:38:26,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:38:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:38:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:38:27,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:38:27,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707441332] [2021-11-05 20:38:27,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707441332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:38:27,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:38:27,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:38:27,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513574411] [2021-11-05 20:38:27,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:38:27,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:38:27,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:38:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:38:27,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:27,361 INFO L87 Difference]: Start difference. First operand 81278 states and 104305 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-05 20:38:29,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:38:31,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:38:31,663 INFO L93 Difference]: Finished difference Result 185166 states and 237871 transitions. [2021-11-05 20:38:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:38:31,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2021-11-05 20:38:31,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:38:31,929 INFO L225 Difference]: With dead ends: 185166 [2021-11-05 20:38:31,929 INFO L226 Difference]: Without dead ends: 104004 [2021-11-05 20:38:32,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:32,031 INFO L933 BasicCegarLoop]: 26890 mSDtfsCounter, 7857 mSDsluCounter, 26826 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2309.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7857 SdHoareTripleChecker+Valid, 53716 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.57ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2483.56ms IncrementalHoareTripleChecker+Time [2021-11-05 20:38:32,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7857 Valid, 53716 Invalid, 153 Unknown, 0 Unchecked, 48.57ms Time], IncrementalHoareTripleChecker [31 Valid, 121 Invalid, 1 Unknown, 0 Unchecked, 2483.56ms Time] [2021-11-05 20:38:32,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104004 states. [2021-11-05 20:38:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104004 to 103818. [2021-11-05 20:38:34,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103818 states, 103610 states have (on average 1.2879741337708714) internal successors, (133447), 103817 states have internal predecessors, (133447), 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) [2021-11-05 20:38:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103818 states to 103818 states and 133447 transitions. [2021-11-05 20:38:34,490 INFO L78 Accepts]: Start accepts. Automaton has 103818 states and 133447 transitions. Word has length 64 [2021-11-05 20:38:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:38:34,490 INFO L470 AbstractCegarLoop]: Abstraction has 103818 states and 133447 transitions. [2021-11-05 20:38:34,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-05 20:38:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 103818 states and 133447 transitions. [2021-11-05 20:38:34,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-05 20:38:34,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:38:34,492 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] [2021-11-05 20:38:34,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:38:34,492 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-05 20:38:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:38:34,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1789293272, now seen corresponding path program 1 times [2021-11-05 20:38:34,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:38:34,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563360462] [2021-11-05 20:38:34,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:38:34,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:38:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:38:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:38:35,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:38:35,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563360462] [2021-11-05 20:38:35,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563360462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:38:35,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:38:35,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:38:35,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027434471] [2021-11-05 20:38:35,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:38:35,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:38:35,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:38:35,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:38:35,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:35,059 INFO L87 Difference]: Start difference. First operand 103818 states and 133447 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-05 20:38:37,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []