./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.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 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 13:07:18,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 13:07:18,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 13:07:18,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 13:07:18,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 13:07:18,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 13:07:18,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 13:07:18,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 13:07:18,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 13:07:18,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 13:07:18,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 13:07:18,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 13:07:18,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 13:07:18,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 13:07:18,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 13:07:18,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 13:07:18,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 13:07:18,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 13:07:18,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 13:07:18,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 13:07:18,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 13:07:18,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 13:07:18,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 13:07:18,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 13:07:18,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 13:07:18,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 13:07:18,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 13:07:18,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 13:07:18,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 13:07:18,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 13:07:18,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 13:07:18,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 13:07:18,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 13:07:18,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 13:07:18,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 13:07:18,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 13:07:18,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 13:07:18,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 13:07:18,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 13:07:18,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 13:07:18,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 13:07:18,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 13:07:18,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 13:07:18,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 13:07:18,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 13:07:18,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 13:07:18,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 13:07:18,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 13:07:18,149 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 13:07:18,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 13:07:18,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 13:07:18,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 13:07:18,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 13:07:18,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 13:07:18,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 13:07:18,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 13:07:18,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 13:07:18,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 13:07:18,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 13:07:18,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 13:07:18,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 13:07:18,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 13:07:18,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 13:07:18,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 13:07:18,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 13:07:18,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 13:07:18,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 13:07:18,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 13:07:18,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 13:07:18,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 13:07:18,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 13:07:18,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2021-11-04 13:07:18,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 13:07:18,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 13:07:18,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 13:07:18,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 13:07:18,389 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 13:07:18,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-04 13:07:18,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ba30e56/2a1379a159bf40d084305c2d916b839d/FLAGb9292bb2a [2021-11-04 13:07:19,127 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 13:07:19,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-04 13:07:19,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ba30e56/2a1379a159bf40d084305c2d916b839d/FLAGb9292bb2a [2021-11-04 13:07:19,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ba30e56/2a1379a159bf40d084305c2d916b839d [2021-11-04 13:07:19,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 13:07:19,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 13:07:19,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 13:07:19,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 13:07:19,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 13:07:19,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 01:07:19" (1/1) ... [2021-11-04 13:07:19,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346c3985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:19, skipping insertion in model container [2021-11-04 13:07:19,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 01:07:19" (1/1) ... [2021-11-04 13:07:19,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 13:07:19,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 13:07:23,180 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-04 13:07:23,186 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-04 13:07:23,187 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-04 13:07:23,187 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-04 13:07:23,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 13:07:23,264 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 13:07:23,561 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-04 13:07:23,562 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-04 13:07:23,562 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-04 13:07:23,562 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-04 13:07:23,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 13:07:23,761 INFO L208 MainTranslator]: Completed translation [2021-11-04 13:07:23,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23 WrapperNode [2021-11-04 13:07:23,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 13:07:23,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 13:07:23,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 13:07:23,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 13:07:23,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:23,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:26,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 13:07:26,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 13:07:26,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 13:07:26,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 13:07:26,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:26,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:27,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:27,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:28,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:28,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:29,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:29,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 13:07:29,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 13:07:29,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 13:07:29,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 13:07:29,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (1/1) ... [2021-11-04 13:07:29,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 13:07:29,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 13:07:29,881 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) [2021-11-04 13:07:29,883 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 [2021-11-04 13:07:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2021-11-04 13:07:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2021-11-04 13:07:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-11-04 13:07:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-11-04 13:07:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2021-11-04 13:07:29,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2021-11-04 13:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 13:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 13:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 13:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 13:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-11-04 13:07:29,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-11-04 13:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 13:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-04 13:07:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-04 13:07:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 13:07:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 13:07:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2021-11-04 13:07:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2021-11-04 13:07:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-04 13:07:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-04 13:07:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 13:07:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-11-04 13:07:29,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-04 13:07:29,941 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-04 13:07:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 13:07:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 13:12:33,662 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0; [2021-11-04 13:12:33,663 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 13:12:33,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L14685: #t~ret2304 := main_#res; [2021-11-04 13:12:33,668 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-04 13:12:33,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 13:12:33,778 INFO L299 CfgBuilder]: Removed 27494 assume(true) statements. [2021-11-04 13:12:33,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 01:12:33 BoogieIcfgContainer [2021-11-04 13:12:33,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 13:12:33,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 13:12:33,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 13:12:33,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 13:12:33,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 01:07:19" (1/3) ... [2021-11-04 13:12:33,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1476b03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 01:12:33, skipping insertion in model container [2021-11-04 13:12:33,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:07:23" (2/3) ... [2021-11-04 13:12:33,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1476b03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 01:12:33, skipping insertion in model container [2021-11-04 13:12:33,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 01:12:33" (3/3) ... [2021-11-04 13:12:33,807 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-04 13:12:33,810 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 13:12:33,811 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 718 error locations. [2021-11-04 13:12:33,910 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 13:12:33,916 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 [2021-11-04 13:12:33,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 718 error locations. [2021-11-04 13:12:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 24991 states, 24222 states have (on average 1.3423747006853275) internal successors, (32515), 24939 states have internal predecessors, (32515), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-04 13:12:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-04 13:12:34,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:12:34,295 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] [2021-11-04 13:12:34,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr658ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-04 13:12:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:12:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash -531829004, now seen corresponding path program 1 times [2021-11-04 13:12:34,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:12:34,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402367981] [2021-11-04 13:12:34,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:12:34,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:12:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:12:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:12:34,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:12:34,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402367981] [2021-11-04 13:12:34,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402367981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:12:34,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:12:34,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:12:34,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948911860] [2021-11-04 13:12:34,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:12:34,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:12:34,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:12:34,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:12:34,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:12:34,968 INFO L87 Difference]: Start difference. First operand has 24991 states, 24222 states have (on average 1.3423747006853275) internal successors, (32515), 24939 states have internal predecessors, (32515), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-11-04 13:12:37,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:14:01,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:14:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:14:54,418 INFO L93 Difference]: Finished difference Result 61573 states and 80362 transitions. [2021-11-04 13:14:54,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 13:14:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-11-04 13:14:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:14:54,541 INFO L225 Difference]: With dead ends: 61573 [2021-11-04 13:14:54,541 INFO L226 Difference]: Without dead ends: 35355 [2021-11-04 13:14:54,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:14:54,598 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 29867 mSDsluCounter, 46957 mSDsCounter, 0 mSdLazyCounter, 76256 mSolverCounterSat, 146 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124455.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29867 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 76404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 316.56ms SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 76256 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 135889.19ms IncrementalHoareTripleChecker+Time [2021-11-04 13:14:54,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29867 Valid, 2534 Invalid, 76404 Unknown, 0 Unchecked, 316.56ms Time], IncrementalHoareTripleChecker [146 Valid, 76256 Invalid, 2 Unknown, 0 Unchecked, 135889.19ms Time] [2021-11-04 13:14:54,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35355 states. [2021-11-04 13:14:55,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35355 to 30409. [2021-11-04 13:14:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30409 states, 29607 states have (on average 1.274597223629547) internal successors, (37737), 30306 states have internal predecessors, (37737), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-04 13:14:55,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30409 states to 30409 states and 37935 transitions. [2021-11-04 13:14:55,455 INFO L78 Accepts]: Start accepts. Automaton has 30409 states and 37935 transitions. Word has length 24 [2021-11-04 13:14:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:14:55,456 INFO L470 AbstractCegarLoop]: Abstraction has 30409 states and 37935 transitions. [2021-11-04 13:14:55,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-11-04 13:14:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 30409 states and 37935 transitions. [2021-11-04 13:14:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-04 13:14:55,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:14:55,458 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] [2021-11-04 13:14:55,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 13:14:55,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr659ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-04 13:14:55,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:14:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 15956375, now seen corresponding path program 1 times [2021-11-04 13:14:55,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:14:55,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539348097] [2021-11-04 13:14:55,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:14:55,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:14:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:14:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:14:55,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:14:55,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539348097] [2021-11-04 13:14:55,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539348097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:14:55,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:14:55,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:14:55,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811625920] [2021-11-04 13:14:55,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:14:55,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:14:55,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:14:55,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:14:55,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:14:55,823 INFO L87 Difference]: Start difference. First operand 30409 states and 37935 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-11-04 13:14:57,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:16:19,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:16:32,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:18:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:18:30,801 INFO L93 Difference]: Finished difference Result 60783 states and 75832 transitions. [2021-11-04 13:18:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 13:18:30,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-11-04 13:18:30,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:18:30,938 INFO L225 Difference]: With dead ends: 60783 [2021-11-04 13:18:30,938 INFO L226 Difference]: Without dead ends: 60779 [2021-11-04 13:18:30,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.43ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:18:30,961 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 29149 mSDsluCounter, 58270 mSDsCounter, 0 mSdLazyCounter, 87252 mSolverCounterSat, 74 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 185610.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29149 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 87328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 380.30ms SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 87252 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 210372.97ms IncrementalHoareTripleChecker+Time [2021-11-04 13:18:30,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29149 Valid, 336 Invalid, 87328 Unknown, 0 Unchecked, 380.30ms Time], IncrementalHoareTripleChecker [74 Valid, 87252 Invalid, 2 Unknown, 0 Unchecked, 210372.97ms Time] [2021-11-04 13:18:31,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60779 states. [2021-11-04 13:18:32,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60779 to 59210. [2021-11-04 13:18:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59210 states, 58324 states have (on average 1.2779987655167684) internal successors, (74538), 59005 states have internal predecessors, (74538), 132 states have call successors, (132), 36 states have call predecessors, (132), 36 states have return successors, (264), 168 states have call predecessors, (264), 132 states have call successors, (264) [2021-11-04 13:18:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59210 states to 59210 states and 74934 transitions. [2021-11-04 13:18:32,356 INFO L78 Accepts]: Start accepts. Automaton has 59210 states and 74934 transitions. Word has length 26 [2021-11-04 13:18:32,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:18:32,356 INFO L470 AbstractCegarLoop]: Abstraction has 59210 states and 74934 transitions. [2021-11-04 13:18:32,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-11-04 13:18:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 59210 states and 74934 transitions. [2021-11-04 13:18:32,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-04 13:18:32,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:18:32,359 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] [2021-11-04 13:18:32,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 13:18:32,360 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr660ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-04 13:18:32,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:18:32,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1843271494, now seen corresponding path program 1 times [2021-11-04 13:18:32,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:18:32,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883709543] [2021-11-04 13:18:32,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:18:32,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:18:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:18:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:18:32,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:18:32,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883709543] [2021-11-04 13:18:32,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883709543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:18:32,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:18:32,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:18:32,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080868726] [2021-11-04 13:18:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:18:32,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:18:32,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:18:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:18:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:18:32,785 INFO L87 Difference]: Start difference. First operand 59210 states and 74934 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-11-04 13:18:35,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:20:16,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15