./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 fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-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-fcb8e13 [2021-11-22 23:42:00,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:42:00,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:42:00,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:42:00,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:42:00,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:42:00,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:42:00,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:42:00,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:42:00,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:42:00,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:42:00,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:42:00,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:42:00,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:42:00,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:42:00,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:42:00,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:42:00,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:42:00,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:42:00,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:42:00,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:42:00,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:42:00,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:42:00,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:42:00,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:42:00,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:42:00,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:42:00,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:42:00,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:42:00,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:42:00,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:42:00,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:42:00,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:42:00,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:42:00,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:42:00,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:42:00,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:42:00,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:42:00,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:42:00,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:42:00,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:42:00,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 23:42:00,492 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:42:00,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:42:00,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:42:00,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:42:00,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:42:00,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:42:00,494 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:42:00,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:42:00,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:42:00,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:42:00,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:42:00,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:42:00,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:42:00,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:42:00,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:42:00,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:42:00,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:42:00,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:42:00,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:42:00,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:42:00,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:42:00,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:42:00,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:42:00,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:42:00,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:42:00,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:42:00,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 23:42:00,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:42:00,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 23:42:00,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2021-11-22 23:42:00,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:42:00,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:42:00,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:42:00,745 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:42:00,747 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:42:00,748 INFO L432 ainManager$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 [2021-11-22 23:42:00,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc7df875/c26000b0c95444a59ff05ffe3f1b63b9/FLAG792bd83ea [2021-11-22 23:42:01,442 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:42:01,443 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 [2021-11-22 23:42:01,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc7df875/c26000b0c95444a59ff05ffe3f1b63b9/FLAG792bd83ea [2021-11-22 23:42:01,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc7df875/c26000b0c95444a59ff05ffe3f1b63b9 [2021-11-22 23:42:01,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:42:01,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:42:01,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:42:01,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:42:01,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:42:01,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:42:01" (1/1) ... [2021-11-22 23:42:01,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738d0f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:01, skipping insertion in model container [2021-11-22 23:42:01,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:42:01" (1/1) ... [2021-11-22 23:42:01,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:42:01,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:42:02,089 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-11-22 23:42:02,089 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2021-11-22 23:42:02,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2021-11-22 23:42:03,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:42:03,230 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:42:03,337 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-11-22 23:42:03,338 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2021-11-22 23:42:03,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2021-11-22 23:42:03,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:42:03,736 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:42:03,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03 WrapperNode [2021-11-22 23:42:03,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:42:03,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:42:03,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:42:03,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:42:03,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:03,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:06,776 INFO L137 Inliner]: procedures = 250, calls = 2339, calls flagged for inlining = 572, calls inlined = 11814, statements flattened = 158976 [2021-11-22 23:42:06,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:42:06,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:42:06,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:42:06,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:42:06,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:06,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:07,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:07,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:09,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:09,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:10,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:10,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:42:10,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:42:10,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:42:10,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:42:10,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (1/1) ... [2021-11-22 23:42:10,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:42:10,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:42:10,805 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) [2021-11-22 23:42:10,814 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 [2021-11-22 23:42:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-22 23:42:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 23:42:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 23:42:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:42:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:42:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:42:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 23:42:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:42:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:42:10,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:42:11,464 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:42:11,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:47:43,267 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:47:43,332 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:47:43,332 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 23:47:43,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:47:43 BoogieIcfgContainer [2021-11-22 23:47:43,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:47:43,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:47:43,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:47:43,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:47:43,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:42:01" (1/3) ... [2021-11-22 23:47:43,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ae3e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:47:43, skipping insertion in model container [2021-11-22 23:47:43,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:42:03" (2/3) ... [2021-11-22 23:47:43,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ae3e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:47:43, skipping insertion in model container [2021-11-22 23:47:43,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:47:43" (3/3) ... [2021-11-22 23:47:43,360 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 [2021-11-22 23:47:43,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:47:43,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2021-11-22 23:47:43,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 23:47:43,459 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 [2021-11-22 23:47:43,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2021-11-22 23:47:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 26994 states, 26904 states have (on average 1.3931385667558727) internal successors, (37481), 26993 states have internal predecessors, (37481), 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) [2021-11-22 23:47:43,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:47:43,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:47:43,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:47:43,777 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)] === [2021-11-22 23:47:43,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:47:43,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1939789790, now seen corresponding path program 1 times [2021-11-22 23:47:43,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:47:43,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171430325] [2021-11-22 23:47:43,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:47:43,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:47:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:47:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:47:44,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:47:44,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171430325] [2021-11-22 23:47:44,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171430325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:47:44,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:47:44,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:47:44,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769445343] [2021-11-22 23:47:44,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:47:44,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:47:44,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:47:44,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:47:44,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:47:44,395 INFO L87 Difference]: Start difference. First operand has 26994 states, 26904 states have (on average 1.3931385667558727) internal successors, (37481), 26993 states have internal predecessors, (37481), 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) [2021-11-22 23:47:45,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:47:45,421 INFO L93 Difference]: Finished difference Result 75309 states and 104618 transitions. [2021-11-22 23:47:45,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:47:45,423 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 [2021-11-22 23:47:45,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:47:45,595 INFO L225 Difference]: With dead ends: 75309 [2021-11-22 23:47:45,595 INFO L226 Difference]: Without dead ends: 47429 [2021-11-22 23:47:45,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:47:45,659 INFO L933 BasicCegarLoop]: 37062 mSDtfsCounter, 29526 mSDsluCounter, 36989 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29526 SdHoareTripleChecker+Valid, 74051 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:47:45,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29526 Valid, 74051 Invalid, 39 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:47:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47429 states. [2021-11-22 23:47:46,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47429 to 47285. [2021-11-22 23:47:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47285 states, 47196 states have (on average 1.3750953470633105) internal successors, (64899), 47284 states have internal predecessors, (64899), 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) [2021-11-22 23:47:46,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47285 states to 47285 states and 64899 transitions. [2021-11-22 23:47:46,711 INFO L78 Accepts]: Start accepts. Automaton has 47285 states and 64899 transitions. Word has length 31 [2021-11-22 23:47:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:47:46,711 INFO L470 AbstractCegarLoop]: Abstraction has 47285 states and 64899 transitions. [2021-11-22 23:47:46,712 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) [2021-11-22 23:47:46,713 INFO L276 IsEmpty]: Start isEmpty. Operand 47285 states and 64899 transitions. [2021-11-22 23:47:46,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-22 23:47:46,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:47:46,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:47:46,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:47:46,718 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)] === [2021-11-22 23:47:46,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:47:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash -968622243, now seen corresponding path program 1 times [2021-11-22 23:47:46,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:47:46,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872970120] [2021-11-22 23:47:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:47:46,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:47:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:47:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:47:47,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:47:47,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872970120] [2021-11-22 23:47:47,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872970120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:47:47,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:47:47,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 23:47:47,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803390576] [2021-11-22 23:47:47,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:47:47,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:47:47,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:47:47,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:47:47,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:47:47,029 INFO L87 Difference]: Start difference. First operand 47285 states and 64899 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) [2021-11-22 23:47:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:47:50,192 INFO L93 Difference]: Finished difference Result 82587 states and 112750 transitions. [2021-11-22 23:47:50,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:47:50,193 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 [2021-11-22 23:47:50,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:47:50,381 INFO L225 Difference]: With dead ends: 82587 [2021-11-22 23:47:50,381 INFO L226 Difference]: Without dead ends: 82413 [2021-11-22 23:47:50,402 INFO L932 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 [2021-11-22 23:47:50,407 INFO L933 BasicCegarLoop]: 40759 mSDtfsCounter, 33966 mSDsluCounter, 27633 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33966 SdHoareTripleChecker+Valid, 68392 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-22 23:47:50,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33966 Valid, 68392 Invalid, 891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [363 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-22 23:47:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82413 states. [2021-11-22 23:47:51,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82413 to 81697. [2021-11-22 23:47:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81697 states, 81608 states have (on average 1.3670105871973337) internal successors, (111559), 81696 states have internal predecessors, (111559), 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) [2021-11-22 23:47:52,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81697 states to 81697 states and 111559 transitions. [2021-11-22 23:47:52,118 INFO L78 Accepts]: Start accepts. Automaton has 81697 states and 111559 transitions. Word has length 41 [2021-11-22 23:47:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:47:52,119 INFO L470 AbstractCegarLoop]: Abstraction has 81697 states and 111559 transitions. [2021-11-22 23:47:52,119 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) [2021-11-22 23:47:52,119 INFO L276 IsEmpty]: Start isEmpty. Operand 81697 states and 111559 transitions. [2021-11-22 23:47:52,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 23:47:52,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:47:52,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:47:52,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:47:52,125 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)] === [2021-11-22 23:47:52,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:47:52,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2009207987, now seen corresponding path program 1 times [2021-11-22 23:47:52,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:47:52,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856575180] [2021-11-22 23:47:52,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:47:52,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:47:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:47:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:47:52,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:47:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856575180] [2021-11-22 23:47:52,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856575180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:47:52,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:47:52,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:47:52,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142658363] [2021-11-22 23:47:52,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:47:52,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:47:52,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:47:52,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:47:52,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:47:52,271 INFO L87 Difference]: Start difference. First operand 81697 states and 111559 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-22 23:47:54,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:47:54,675 INFO L93 Difference]: Finished difference Result 211276 states and 288407 transitions. [2021-11-22 23:47:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:47:54,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-22 23:47:54,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:47:54,948 INFO L225 Difference]: With dead ends: 211276 [2021-11-22 23:47:54,949 INFO L226 Difference]: Without dead ends: 129611 [2021-11-22 23:47:55,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:47:55,103 INFO L933 BasicCegarLoop]: 41963 mSDtfsCounter, 22976 mSDsluCounter, 35994 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22976 SdHoareTripleChecker+Valid, 77957 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:47:55,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22976 Valid, 77957 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:47:55,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129611 states. [2021-11-22 23:47:56,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129611 to 115327. [2021-11-22 23:47:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115327 states, 115238 states have (on average 1.3670056752113018) internal successors, (157531), 115326 states have internal predecessors, (157531), 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) [2021-11-22 23:47:57,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115327 states to 115327 states and 157531 transitions. [2021-11-22 23:47:57,668 INFO L78 Accepts]: Start accepts. Automaton has 115327 states and 157531 transitions. Word has length 53 [2021-11-22 23:47:57,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:47:57,668 INFO L470 AbstractCegarLoop]: Abstraction has 115327 states and 157531 transitions. [2021-11-22 23:47:57,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-22 23:47:57,669 INFO L276 IsEmpty]: Start isEmpty. Operand 115327 states and 157531 transitions. [2021-11-22 23:47:57,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 23:47:57,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:47:57,675 INFO L514 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, 1, 1] [2021-11-22 23:47:57,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 23:47:57,675 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)] === [2021-11-22 23:47:57,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:47:57,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1197804028, now seen corresponding path program 1 times [2021-11-22 23:47:57,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:47:57,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99726179] [2021-11-22 23:47:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:47:57,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:47:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:47:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:47:57,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:47:57,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99726179] [2021-11-22 23:47:57,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99726179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:47:57,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:47:57,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:47:57,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299030238] [2021-11-22 23:47:57,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:47:57,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:47:57,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:47:57,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:47:57,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 23:47:57,876 INFO L87 Difference]: Start difference. First operand 115327 states and 157531 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)