./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 ae007674 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 0.2.2-dev-ae00767 [2021-12-28 04:03:21,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:03:21,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:03:21,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:03:21,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:03:21,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:03:21,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:03:21,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:03:21,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:03:21,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:03:21,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:03:21,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:03:21,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:03:21,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:03:21,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:03:21,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:03:21,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:03:21,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:03:21,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:03:21,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:03:21,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:03:21,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:03:21,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:03:21,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:03:21,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:03:21,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:03:21,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:03:21,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:03:21,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:03:21,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:03:21,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:03:21,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:03:21,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:03:21,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:03:21,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:03:21,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:03:21,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:03:21,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:03:21,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:03:21,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:03:21,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:03:21,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:03:21,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:03:21,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:03:21,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:03:21,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:03:21,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:03:21,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:03:21,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:03:21,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:03:21,331 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:03:21,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:03:21,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:03:21,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:03:21,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:03:21,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:03:21,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:03:21,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:03:21,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:03:21,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:03:21,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:03:21,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:03:21,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:03:21,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:03:21,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:03:21,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:03:21,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:03:21,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:03:21,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:03:21,335 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:03:21,335 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:03:21,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:03:21,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2021-12-28 04:03:21,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:03:21,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:03:21,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:03:21,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:03:21,766 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:03:21,767 INFO L432 ainManager$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 [2021-12-28 04:03:21,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303aaf21a/9ca5f33d9fd5456ca7575edb83f90bc3/FLAG3f2b21fcf [2021-12-28 04:03:22,444 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:03:22,445 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 [2021-12-28 04:03:22,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303aaf21a/9ca5f33d9fd5456ca7575edb83f90bc3/FLAG3f2b21fcf [2021-12-28 04:03:22,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303aaf21a/9ca5f33d9fd5456ca7575edb83f90bc3 [2021-12-28 04:03:22,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:03:22,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:03:22,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:03:22,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:03:22,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:03:22,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:03:22" (1/1) ... [2021-12-28 04:03:22,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f4e2deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:22, skipping insertion in model container [2021-12-28 04:03:22,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:03:22" (1/1) ... [2021-12-28 04:03:22,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:03:22,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:03:23,095 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-12-28 04:03:23,095 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] [2021-12-28 04:03:23,273 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] [2021-12-28 04:03:23,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:03:23,980 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:03:24,086 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2021-12-28 04:03:24,087 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] [2021-12-28 04:03:24,095 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] [2021-12-28 04:03:24,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:03:24,617 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:03:24,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24 WrapperNode [2021-12-28 04:03:24,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:03:24,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:03:24,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:03:24,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:03:24,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:24,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:24,842 INFO L137 Inliner]: procedures = 250, calls = 2339, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6369 [2021-12-28 04:03:24,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:03:24,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:03:24,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:03:24,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:03:24,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:24,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:24,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:24,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:24,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:25,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:25,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:25,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:03:25,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:03:25,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:03:25,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:03:25,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (1/1) ... [2021-12-28 04:03:25,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:03:25,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:03:25,172 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) [2021-12-28 04:03:25,180 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 [2021-12-28 04:03:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2021-12-28 04:03:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2021-12-28 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-28 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 04:03:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 04:03:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:03:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:03:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2021-12-28 04:03:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2021-12-28 04:03:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-12-28 04:03:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-12-28 04:03:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-12-28 04:03:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-12-28 04:03:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 04:03:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 04:03:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:03:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:03:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:03:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:03:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2021-12-28 04:03:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2021-12-28 04:03:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2021-12-28 04:03:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2021-12-28 04:03:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-28 04:03:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-28 04:03:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2021-12-28 04:03:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2021-12-28 04:03:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2021-12-28 04:03:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2021-12-28 04:03:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2021-12-28 04:03:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2021-12-28 04:03:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:03:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:03:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:03:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:03:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2021-12-28 04:03:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2021-12-28 04:03:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-28 04:03:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-28 04:03:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:03:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:03:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2021-12-28 04:03:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2021-12-28 04:03:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2021-12-28 04:03:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2021-12-28 04:03:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:03:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:03:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:03:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:03:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2021-12-28 04:03:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2021-12-28 04:03:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:03:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:03:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:03:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:03:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-28 04:03:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-28 04:03:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:03:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:03:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:03:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 04:03:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 04:03:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:03:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 04:03:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 04:03:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2021-12-28 04:03:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2021-12-28 04:03:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:03:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:03:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 04:03:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 04:03:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 04:03:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 04:03:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2021-12-28 04:03:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2021-12-28 04:03:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:03:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:03:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2021-12-28 04:03:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2021-12-28 04:03:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:03:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:03:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:03:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 04:03:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 04:03:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2021-12-28 04:03:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2021-12-28 04:03:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:03:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:03:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:03:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:03:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2021-12-28 04:03:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2021-12-28 04:03:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:03:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2021-12-28 04:03:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2021-12-28 04:03:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-28 04:03:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-28 04:03:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:03:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2021-12-28 04:03:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2021-12-28 04:03:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2021-12-28 04:03:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2021-12-28 04:03:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:03:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:03:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2021-12-28 04:03:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2021-12-28 04:03:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:03:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:03:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-28 04:03:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-28 04:03:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:03:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:03:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:03:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 04:03:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 04:03:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2021-12-28 04:03:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2021-12-28 04:03:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 04:03:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 04:03:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:03:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:03:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:03:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2021-12-28 04:03:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2021-12-28 04:03:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2021-12-28 04:03:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2021-12-28 04:03:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 04:03:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 04:03:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:03:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2021-12-28 04:03:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2021-12-28 04:03:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:03:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:03:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:03:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:03:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:03:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:03:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-28 04:03:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-28 04:03:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 04:03:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 04:03:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2021-12-28 04:03:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2021-12-28 04:03:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-28 04:03:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-28 04:03:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2021-12-28 04:03:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2021-12-28 04:03:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2021-12-28 04:03:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2021-12-28 04:03:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:03:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:03:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-28 04:03:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-28 04:03:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2021-12-28 04:03:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2021-12-28 04:03:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-28 04:03:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-28 04:03:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-28 04:03:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-28 04:03:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:03:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2021-12-28 04:03:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2021-12-28 04:03:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-12-28 04:03:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-12-28 04:03:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-28 04:03:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-28 04:03:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:03:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:03:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:03:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:03:25,845 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:03:25,847 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:03:26,647 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:03:34,821 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:03:34,840 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:03:34,840 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:03:34,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:03:34 BoogieIcfgContainer [2021-12-28 04:03:34,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:03:34,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:03:34,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:03:34,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:03:34,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:03:22" (1/3) ... [2021-12-28 04:03:34,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0108e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:03:34, skipping insertion in model container [2021-12-28 04:03:34,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:24" (2/3) ... [2021-12-28 04:03:34,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0108e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:03:34, skipping insertion in model container [2021-12-28 04:03:34,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:03:34" (3/3) ... [2021-12-28 04:03:34,849 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 [2021-12-28 04:03:34,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:03:34,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:03:34,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:03:34,895 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 [2021-12-28 04:03:34,896 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:03:34,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 1998 states, 1483 states have (on average 1.3917734322319621) internal successors, (2064), 1507 states have internal predecessors, (2064), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) [2021-12-28 04:03:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-28 04:03:34,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:03:34,941 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:03:34,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:03:34,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:03:34,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1716966273, now seen corresponding path program 1 times [2021-12-28 04:03:34,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:03:34,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666828543] [2021-12-28 04:03:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:03:34,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:03:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:35,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:03:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:03:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:03:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:03:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:35,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:03:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:03:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-28 04:03:35,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:03:35,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666828543] [2021-12-28 04:03:35,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666828543] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:03:35,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:03:35,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:03:35,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189167172] [2021-12-28 04:03:35,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:03:35,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:03:35,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:03:35,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:03:35,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:03:35,620 INFO L87 Difference]: Start difference. First operand has 1998 states, 1483 states have (on average 1.3917734322319621) internal successors, (2064), 1507 states have internal predecessors, (2064), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-28 04:03:39,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:43,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:44,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:46,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:49,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:54,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:03:59,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:03:59,566 INFO L93 Difference]: Finished difference Result 6659 states and 10182 transitions. [2021-12-28 04:03:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:03:59,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-12-28 04:03:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:03:59,629 INFO L225 Difference]: With dead ends: 6659 [2021-12-28 04:03:59,629 INFO L226 Difference]: Without dead ends: 4615 [2021-12-28 04:03:59,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:03:59,660 INFO L933 BasicCegarLoop]: 3235 mSDtfsCounter, 4790 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 4258 mSolverCounterSat, 2770 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 8001 SdHoareTripleChecker+Invalid, 7032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2770 IncrementalHoareTripleChecker+Valid, 4258 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:03:59,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5146 Valid, 8001 Invalid, 7032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2770 Valid, 4258 Invalid, 4 Unknown, 0 Unchecked, 23.3s Time] [2021-12-28 04:03:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2021-12-28 04:03:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 3618. [2021-12-28 04:03:59,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 2687 states have (on average 1.384443617417194) internal successors, (3720), 2716 states have internal predecessors, (3720), 789 states have call successors, (789), 142 states have call predecessors, (789), 141 states have return successors, (788), 786 states have call predecessors, (788), 788 states have call successors, (788) [2021-12-28 04:03:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 5297 transitions. [2021-12-28 04:03:59,932 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 5297 transitions. Word has length 58 [2021-12-28 04:03:59,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:03:59,932 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 5297 transitions. [2021-12-28 04:03:59,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-28 04:03:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5297 transitions. [2021-12-28 04:03:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 04:03:59,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:03:59,944 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:03:59,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:03:59,945 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:03:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:03:59,946 INFO L85 PathProgramCache]: Analyzing trace with hash 543101132, now seen corresponding path program 1 times [2021-12-28 04:03:59,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:03:59,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605023491] [2021-12-28 04:03:59,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:03:59,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:04:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:04:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:04:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:04:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:04:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 04:04:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 04:04:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 04:04:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 04:04:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-28 04:04:00,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:04:00,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605023491] [2021-12-28 04:04:00,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605023491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:04:00,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:04:00,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:04:00,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626188591] [2021-12-28 04:04:00,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:04:00,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:04:00,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:04:00,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:04:00,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:04:00,434 INFO L87 Difference]: Start difference. First operand 3618 states and 5297 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:04:04,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:08,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:13,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:15,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:21,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:23,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:26,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:04:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:04:28,982 INFO L93 Difference]: Finished difference Result 9595 states and 14912 transitions. [2021-12-28 04:04:28,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:04:28,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2021-12-28 04:04:28,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:04:29,069 INFO L225 Difference]: With dead ends: 9595 [2021-12-28 04:04:29,069 INFO L226 Difference]: Without dead ends: 9592 [2021-12-28 04:04:29,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:04:29,083 INFO L933 BasicCegarLoop]: 3436 mSDtfsCounter, 5640 mSDsluCounter, 6772 mSDsCounter, 0 mSdLazyCounter, 6012 mSolverCounterSat, 3056 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6055 SdHoareTripleChecker+Valid, 10208 SdHoareTripleChecker+Invalid, 9072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3056 IncrementalHoareTripleChecker+Valid, 6012 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:04:29,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6055 Valid, 10208 Invalid, 9072 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3056 Valid, 6012 Invalid, 4 Unknown, 0 Unchecked, 27.9s Time] [2021-12-28 04:04:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9592 states. [2021-12-28 04:04:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9592 to 7428. [2021-12-28 04:04:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 5506 states have (on average 1.3908463494369778) internal successors, (7658), 5570 states have internal predecessors, (7658), 1627 states have call successors, (1627), 271 states have call predecessors, (1627), 294 states have return successors, (1964), 1632 states have call predecessors, (1964), 1626 states have call successors, (1964) [2021-12-28 04:04:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 11249 transitions. [2021-12-28 04:04:29,455 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 11249 transitions. Word has length 84 [2021-12-28 04:04:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:04:29,457 INFO L470 AbstractCegarLoop]: Abstraction has 7428 states and 11249 transitions. [2021-12-28 04:04:29,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:04:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 11249 transitions. [2021-12-28 04:04:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-28 04:04:29,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:04:29,464 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:04:29,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:04:29,465 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:04:29,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:04:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1033473605, now seen corresponding path program 1 times [2021-12-28 04:04:29,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:04:29,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94051662] [2021-12-28 04:04:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:04:29,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:04:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:04:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:04:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:04:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-28 04:04:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 04:04:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 04:04:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 04:04:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 04:04:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:04:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 04:04:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:04:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:04:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-28 04:04:29,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:04:29,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94051662] [2021-12-28 04:04:29,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94051662] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:04:29,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:04:29,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:04:29,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300729308] [2021-12-28 04:04:29,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:04:29,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:04:29,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:04:29,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:04:29,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:04:29,731 INFO L87 Difference]: Start difference. First operand 7428 states and 11249 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)