./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.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 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 15:06:25,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:06:25,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:06:25,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:06:25,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:06:25,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:06:25,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:06:25,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:06:25,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:06:25,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:06:25,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:06:25,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:06:25,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:06:25,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:06:25,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:06:25,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:06:25,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:06:25,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:06:25,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:06:25,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:06:25,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:06:25,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:06:25,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:06:25,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:06:25,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:06:25,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:06:25,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:06:25,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:06:25,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:06:25,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:06:25,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:06:25,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:06:25,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:06:25,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:06:25,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:06:25,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:06:25,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:06:25,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:06:25,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:06:25,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:06:25,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:06:25,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:06:25,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:06:25,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:06:25,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:06:25,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:06:25,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:06:25,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:06:25,573 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:06:25,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:06:25,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:06:25,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:06:25,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:06:25,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:06:25,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:06:25,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:06:25,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:06:25,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:06:25,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:06:25,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:06:25,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:06:25,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:06:25,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:06:25,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:06:25,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:06:25,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:06:25,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:06:25,577 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:06:25,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:06:25,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:06:25,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:06:25,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2021-11-06 15:06:25,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:06:25,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:06:25,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:06:25,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:06:25,858 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:06:25,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2021-11-06 15:06:25,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14f890ad/112e35c659b041dcaccb698a16b5e665/FLAGa9988a14f [2021-11-06 15:06:26,671 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:06:26,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2021-11-06 15:06:26,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14f890ad/112e35c659b041dcaccb698a16b5e665/FLAGa9988a14f [2021-11-06 15:06:27,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14f890ad/112e35c659b041dcaccb698a16b5e665 [2021-11-06 15:06:27,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:06:27,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:06:27,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:06:27,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:06:27,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:06:27,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:06:27" (1/1) ... [2021-11-06 15:06:27,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c1e8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:27, skipping insertion in model container [2021-11-06 15:06:27,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:06:27" (1/1) ... [2021-11-06 15:06:27,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:06:27,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:06:27,696 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-11-06 15:06:27,697 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2021-11-06 15:06:28,069 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2021-11-06 15:06:28,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:06:29,010 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:06:29,114 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-11-06 15:06:29,115 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2021-11-06 15:06:29,123 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2021-11-06 15:06:29,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:06:29,533 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:06:29,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29 WrapperNode [2021-11-06 15:06:29,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:06:29,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:06:29,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:06:29,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:06:29,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:29,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:34,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:06:34,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:06:34,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:06:34,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:06:34,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:34,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:35,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:35,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:37,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:38,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:38,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:39,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:06:39,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:06:39,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:06:39,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:06:39,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (1/1) ... [2021-11-06 15:06:39,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:06:39,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:06:39,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 15:06:39,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 15:06:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 15:06:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 15:06:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 15:06:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:06:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:06:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:06:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:06:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 15:06:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 15:06:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:06:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:06:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:06:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:06:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 15:06:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:06:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:06:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:12:56,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:12:56,390 INFO L299 CfgBuilder]: Removed 23621 assume(true) statements. [2021-11-06 15:12:56,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:12:56 BoogieIcfgContainer [2021-11-06 15:12:56,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:12:56,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:12:56,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:12:56,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:12:56,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:06:27" (1/3) ... [2021-11-06 15:12:56,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790f20b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:12:56, skipping insertion in model container [2021-11-06 15:12:56,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:06:29" (2/3) ... [2021-11-06 15:12:56,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790f20b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:12:56, skipping insertion in model container [2021-11-06 15:12:56,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:12:56" (3/3) ... [2021-11-06 15:12:56,420 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2021-11-06 15:12:56,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:12:56,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2021-11-06 15:12:56,531 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:12:56,545 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 15:12:56,548 INFO L340 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2021-11-06 15:12:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 25554 states, 25464 states have (on average 1.4153707194470626) internal successors, (36041), 25553 states have internal predecessors, (36041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:12:56,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-06 15:12:56,835 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:12:56,836 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:12:56,836 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 86 more)] === [2021-11-06 15:12:56,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:12:56,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1542176244, now seen corresponding path program 1 times [2021-11-06 15:12:56,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:12:56,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586266644] [2021-11-06 15:12:56,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:12:56,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:12:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:12:57,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:12:57,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:12:57,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586266644] [2021-11-06 15:12:57,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586266644] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:12:57,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:12:57,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:12:57,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281269987] [2021-11-06 15:12:57,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:12:57,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:12:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:12:57,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:12:57,558 INFO L87 Difference]: Start difference. First operand has 25554 states, 25464 states have (on average 1.4153707194470626) internal successors, (36041), 25553 states have internal predecessors, (36041), 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 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:12:59,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:12:59,097 INFO L93 Difference]: Finished difference Result 71431 states and 100740 transitions. [2021-11-06 15:12:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:12:59,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-06 15:12:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:12:59,305 INFO L225 Difference]: With dead ends: 71431 [2021-11-06 15:12:59,306 INFO L226 Difference]: Without dead ends: 45009 [2021-11-06 15:12:59,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:12:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45009 states. [2021-11-06 15:13:00,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45009 to 44865. [2021-11-06 15:13:00,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44865 states, 44776 states have (on average 1.3953680543148115) internal successors, (62479), 44864 states have internal predecessors, (62479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44865 states to 44865 states and 62479 transitions. [2021-11-06 15:13:00,587 INFO L78 Accepts]: Start accepts. Automaton has 44865 states and 62479 transitions. Word has length 31 [2021-11-06 15:13:00,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:13:00,588 INFO L470 AbstractCegarLoop]: Abstraction has 44865 states and 62479 transitions. [2021-11-06 15:13:00,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 44865 states and 62479 transitions. [2021-11-06 15:13:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-06 15:13:00,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:13:00,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:13:00,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:13:00,598 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 86 more)] === [2021-11-06 15:13:00,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:13:00,600 INFO L85 PathProgramCache]: Analyzing trace with hash -481684943, now seen corresponding path program 1 times [2021-11-06 15:13:00,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:13:00,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869729219] [2021-11-06 15:13:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:13:00,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:13:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:13:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:13:00,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:13:00,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869729219] [2021-11-06 15:13:00,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869729219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:13:00,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:13:00,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 15:13:00,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743264229] [2021-11-06 15:13:00,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:13:00,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:13:00,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:13:00,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:13:00,864 INFO L87 Difference]: Start difference. First operand 44865 states and 62479 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:13:04,876 INFO L93 Difference]: Finished difference Result 79152 states and 109315 transitions. [2021-11-06 15:13:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:13:04,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-11-06 15:13:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:13:05,107 INFO L225 Difference]: With dead ends: 79152 [2021-11-06 15:13:05,107 INFO L226 Difference]: Without dead ends: 78978 [2021-11-06 15:13:05,158 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:13:05,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78978 states. [2021-11-06 15:13:07,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78978 to 78302. [2021-11-06 15:13:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78302 states, 78213 states have (on average 1.3829414547453749) internal successors, (108164), 78301 states have internal predecessors, (108164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:07,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78302 states to 78302 states and 108164 transitions. [2021-11-06 15:13:07,745 INFO L78 Accepts]: Start accepts. Automaton has 78302 states and 108164 transitions. Word has length 41 [2021-11-06 15:13:07,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:13:07,746 INFO L470 AbstractCegarLoop]: Abstraction has 78302 states and 108164 transitions. [2021-11-06 15:13:07,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:07,746 INFO L276 IsEmpty]: Start isEmpty. Operand 78302 states and 108164 transitions. [2021-11-06 15:13:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-06 15:13:07,752 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:13:07,753 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:13:07,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:13:07,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 86 more)] === [2021-11-06 15:13:07,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:13:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash 544668782, now seen corresponding path program 1 times [2021-11-06 15:13:07,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:13:07,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329010698] [2021-11-06 15:13:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:13:07,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:13:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:13:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:13:07,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:13:07,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329010698] [2021-11-06 15:13:07,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329010698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:13:07,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:13:07,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:13:07,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672763790] [2021-11-06 15:13:07,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:13:07,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:13:07,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:13:07,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:13:07,973 INFO L87 Difference]: Start difference. First operand 78302 states and 108164 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:09,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:13:09,943 INFO L93 Difference]: Finished difference Result 202404 states and 279535 transitions. [2021-11-06 15:13:09,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:13:09,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-06 15:13:09,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:13:10,583 INFO L225 Difference]: With dead ends: 202404 [2021-11-06 15:13:10,584 INFO L226 Difference]: Without dead ends: 124134 [2021-11-06 15:13:10,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:13:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124134 states. [2021-11-06 15:13:12,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124134 to 110555. [2021-11-06 15:13:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110555 states, 110466 states have (on average 1.3828598844893452) internal successors, (152759), 110554 states have internal predecessors, (152759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110555 states to 110555 states and 152759 transitions. [2021-11-06 15:13:13,182 INFO L78 Accepts]: Start accepts. Automaton has 110555 states and 152759 transitions. Word has length 51 [2021-11-06 15:13:13,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:13:13,182 INFO L470 AbstractCegarLoop]: Abstraction has 110555 states and 152759 transitions. [2021-11-06 15:13:13,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 15:13:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 110555 states and 152759 transitions. [2021-11-06 15:13:13,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 15:13:13,189 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:13:13,190 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 15:13:13,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 15:13:13,190 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 86 more)] === [2021-11-06 15:13:13,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:13:13,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1918010301, now seen corresponding path program 1 times [2021-11-06 15:13:13,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:13:13,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270108686] [2021-11-06 15:13:13,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:13:13,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:13:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:13:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:13:13,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:13:13,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270108686] [2021-11-06 15:13:13,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270108686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:13:13,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:13:13,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:13:13,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596950776] [2021-11-06 15:13:13,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:13:13,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:13:13,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:13:13,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:13:13,394 INFO L87 Difference]: Start difference. First operand 110555 states and 152759 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 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)