./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--block--mtip32xx--mtip32xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--block--mtip32xx--mtip32xx.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 f0e55ca795fc0b7479008c7c7ace6ad96366c87862ace8719a39598b92db6b60 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:31:48,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:31:48,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:31:48,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:31:48,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:31:48,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:31:48,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:31:48,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:31:48,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:31:48,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:31:48,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:31:48,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:31:48,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:31:48,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:31:48,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:31:48,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:31:48,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:31:48,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:31:48,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:31:48,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:31:48,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:31:48,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:31:48,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:31:48,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:31:48,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:31:48,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:31:48,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:31:48,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:31:48,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:31:48,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:31:48,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:31:48,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:31:48,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:31:48,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:31:48,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:31:48,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:31:48,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:31:48,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:31:48,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:31:48,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:31:48,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:31:48,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:31:48,461 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:31:48,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:31:48,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:31:48,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:31:48,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:31:48,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:31:48,464 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:31:48,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:31:48,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:31:48,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:31:48,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:31:48,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:31:48,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:31:48,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:31:48,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:31:48,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:31:48,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:31:48,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:31:48,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:31:48,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:31:48,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:31:48,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:31:48,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:31:48,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:31:48,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:31:48,468 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:31:48,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:31:48,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:31:48,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:31:48,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0e55ca795fc0b7479008c7c7ace6ad96366c87862ace8719a39598b92db6b60 [2021-11-07 15:31:48,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:31:48,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:31:48,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:31:48,763 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:31:48,764 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:31:48,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--block--mtip32xx--mtip32xx.ko-entry_point.cil.out.i [2021-11-07 15:31:48,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2e944ca/ea3ebfc7f5a04662bf1c7e37abd8a2a8/FLAGb4f1dc803 [2021-11-07 15:31:49,736 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:31:49,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--block--mtip32xx--mtip32xx.ko-entry_point.cil.out.i [2021-11-07 15:31:49,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2e944ca/ea3ebfc7f5a04662bf1c7e37abd8a2a8/FLAGb4f1dc803 [2021-11-07 15:31:50,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2e944ca/ea3ebfc7f5a04662bf1c7e37abd8a2a8 [2021-11-07 15:31:50,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:31:50,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:31:50,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:31:50,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:31:50,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:31:50,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:31:50" (1/1) ... [2021-11-07 15:31:50,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24de4af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:50, skipping insertion in model container [2021-11-07 15:31:50,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:31:50" (1/1) ... [2021-11-07 15:31:50,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:31:50,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:31:53,367 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--block--mtip32xx--mtip32xx.ko-entry_point.cil.out.i[373305,373318] [2021-11-07 15:31:53,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:31:53,501 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:31:53,998 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--block--mtip32xx--mtip32xx.ko-entry_point.cil.out.i[373305,373318] [2021-11-07 15:31:54,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:31:54,166 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:31:54,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54 WrapperNode [2021-11-07 15:31:54,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:31:54,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:31:54,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:31:54,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:31:54,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:31:54,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:00,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:32:00,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:32:00,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:32:00,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:32:00,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:00,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:01,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:01,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:03,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:03,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:04,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:04,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:32:04,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:32:04,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:32:04,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:32:04,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (1/1) ... [2021-11-07 15:32:04,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:32:04,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:32:05,002 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) [2021-11-07 15:32:05,015 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 [2021-11-07 15:32:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 15:32:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:32:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:32:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:32:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:32:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:32:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:32:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 15:32:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:32:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:32:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:32:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:32:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 15:32:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:32:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:32:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:32:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:32:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:36:26,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:36:26,692 INFO L299 CfgBuilder]: Removed 38202 assume(true) statements. [2021-11-07 15:36:26,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:36:26 BoogieIcfgContainer [2021-11-07 15:36:26,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:36:26,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:36:26,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:36:26,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:36:26,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:31:50" (1/3) ... [2021-11-07 15:36:26,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbae467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:36:26, skipping insertion in model container [2021-11-07 15:36:26,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:31:54" (2/3) ... [2021-11-07 15:36:26,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbae467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:36:26, skipping insertion in model container [2021-11-07 15:36:26,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:36:26" (3/3) ... [2021-11-07 15:36:26,729 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--block--mtip32xx--mtip32xx.ko-entry_point.cil.out.i [2021-11-07 15:36:26,735 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:36:26,735 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 15:36:26,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:36:26,877 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 [2021-11-07 15:36:26,878 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 15:36:27,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 33254 states, 33242 states have (on average 1.3382467962216473) internal successors, (44486), 33253 states have internal predecessors, (44486), 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) [2021-11-07 15:36:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-07 15:36:27,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:36:27,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:36:27,291 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 15:36:27,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:36:27,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1334206354, now seen corresponding path program 1 times [2021-11-07 15:36:27,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:36:27,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417302909] [2021-11-07 15:36:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:36:27,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:36:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:36:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:36:28,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:36:28,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417302909] [2021-11-07 15:36:28,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417302909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:36:28,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:36:28,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:36:28,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332400272] [2021-11-07 15:36:28,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:36:28,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:36:28,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:36:28,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:36:28,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:36:28,168 INFO L87 Difference]: Start difference. First operand has 33254 states, 33242 states have (on average 1.3382467962216473) internal successors, (44486), 33253 states have internal predecessors, (44486), 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 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2021-11-07 15:36:29,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:36:29,373 INFO L93 Difference]: Finished difference Result 66324 states and 88727 transitions. [2021-11-07 15:36:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:36:29,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2021-11-07 15:36:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:36:29,559 INFO L225 Difference]: With dead ends: 66324 [2021-11-07 15:36:29,560 INFO L226 Difference]: Without dead ends: 32835 [2021-11-07 15:36:29,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:36:29,654 INFO L933 BasicCegarLoop]: 43264 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43264 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:36:29,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43264 Invalid, 0 Unknown, 0 Unchecked, 87.79ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:36:29,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32835 states. [2021-11-07 15:36:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32835 to 32835. [2021-11-07 15:36:30,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32835 states, 32824 states have (on average 1.3037106994881793) internal successors, (42793), 32834 states have internal predecessors, (42793), 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) [2021-11-07 15:36:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32835 states to 32835 states and 42793 transitions. [2021-11-07 15:36:30,959 INFO L78 Accepts]: Start accepts. Automaton has 32835 states and 42793 transitions. Word has length 154 [2021-11-07 15:36:30,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:36:30,959 INFO L470 AbstractCegarLoop]: Abstraction has 32835 states and 42793 transitions. [2021-11-07 15:36:30,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2021-11-07 15:36:30,960 INFO L276 IsEmpty]: Start isEmpty. Operand 32835 states and 42793 transitions. [2021-11-07 15:36:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-07 15:36:30,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:36:30,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:36:30,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:36:30,974 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 15:36:30,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:36:30,976 INFO L85 PathProgramCache]: Analyzing trace with hash -943374710, now seen corresponding path program 1 times [2021-11-07 15:36:30,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:36:30,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637346851] [2021-11-07 15:36:30,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:36:30,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:36:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:36:31,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:36:31,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:36:31,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637346851] [2021-11-07 15:36:31,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637346851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:36:31,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:36:31,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:36:31,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919545121] [2021-11-07 15:36:31,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:36:31,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:36:31,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:36:31,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:36:31,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:36:31,518 INFO L87 Difference]: Start difference. First operand 32835 states and 42793 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2021-11-07 15:36:33,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:36:33,719 INFO L93 Difference]: Finished difference Result 98154 states and 127964 transitions. [2021-11-07 15:36:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:36:33,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 154 [2021-11-07 15:36:33,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:36:33,952 INFO L225 Difference]: With dead ends: 98154 [2021-11-07 15:36:33,952 INFO L226 Difference]: Without dead ends: 65460 [2021-11-07 15:36:34,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:36:34,051 INFO L933 BasicCegarLoop]: 42792 mSDtfsCounter, 42688 mSDsluCounter, 42615 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 166.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42688 SdHoareTripleChecker+Valid, 85407 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 140.24ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 189.98ms IncrementalHoareTripleChecker+Time [2021-11-07 15:36:34,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42688 Valid, 85407 Invalid, 17 Unknown, 0 Unchecked, 140.24ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 189.98ms Time] [2021-11-07 15:36:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65460 states. [2021-11-07 15:36:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65460 to 65417. [2021-11-07 15:36:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65417 states, 65406 states have (on average 1.3041616977035746) internal successors, (85300), 65416 states have internal predecessors, (85300), 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) [2021-11-07 15:36:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65417 states to 65417 states and 85300 transitions. [2021-11-07 15:36:35,849 INFO L78 Accepts]: Start accepts. Automaton has 65417 states and 85300 transitions. Word has length 154 [2021-11-07 15:36:35,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:36:35,853 INFO L470 AbstractCegarLoop]: Abstraction has 65417 states and 85300 transitions. [2021-11-07 15:36:35,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2021-11-07 15:36:35,856 INFO L276 IsEmpty]: Start isEmpty. Operand 65417 states and 85300 transitions. [2021-11-07 15:36:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-07 15:36:35,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:36:35,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:36:35,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:36:35,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 15:36:35,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:36:35,863 INFO L85 PathProgramCache]: Analyzing trace with hash -986187484, now seen corresponding path program 1 times [2021-11-07 15:36:35,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:36:35,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090511304] [2021-11-07 15:36:35,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:36:35,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:36:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:36:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:36:36,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:36:36,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090511304] [2021-11-07 15:36:36,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090511304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:36:36,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:36:36,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:36:36,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216045055] [2021-11-07 15:36:36,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:36:36,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:36:36,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:36:36,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:36:36,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:36:36,339 INFO L87 Difference]: Start difference. First operand 65417 states and 85300 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-07 15:36:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:36:39,080 INFO L93 Difference]: Finished difference Result 195858 states and 255430 transitions. [2021-11-07 15:36:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:36:39,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 158 [2021-11-07 15:36:39,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:36:39,569 INFO L225 Difference]: With dead ends: 195858 [2021-11-07 15:36:39,569 INFO L226 Difference]: Without dead ends: 130582 [2021-11-07 15:36:39,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:36:39,693 INFO L933 BasicCegarLoop]: 42869 mSDtfsCounter, 42689 mSDsluCounter, 42615 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 147.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42689 SdHoareTripleChecker+Valid, 85484 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 98.21ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 170.23ms IncrementalHoareTripleChecker+Time [2021-11-07 15:36:39,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42689 Valid, 85484 Invalid, 17 Unknown, 0 Unchecked, 98.21ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 170.23ms Time] [2021-11-07 15:36:39,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130582 states. [2021-11-07 15:36:42,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130582 to 130553. [2021-11-07 15:36:43,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130553 states, 130542 states have (on average 1.304346493848723) internal successors, (170272), 130552 states have internal predecessors, (170272), 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) [2021-11-07 15:36:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130553 states to 130553 states and 170272 transitions. [2021-11-07 15:36:43,367 INFO L78 Accepts]: Start accepts. Automaton has 130553 states and 170272 transitions. Word has length 158 [2021-11-07 15:36:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:36:43,368 INFO L470 AbstractCegarLoop]: Abstraction has 130553 states and 170272 transitions. [2021-11-07 15:36:43,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-07 15:36:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 130553 states and 170272 transitions. [2021-11-07 15:36:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-07 15:36:43,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:36:43,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:36:43,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:36:43,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 15:36:43,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:36:43,374 INFO L85 PathProgramCache]: Analyzing trace with hash -470459058, now seen corresponding path program 1 times [2021-11-07 15:36:43,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:36:43,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974503093] [2021-11-07 15:36:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:36:43,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:36:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:36:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:36:43,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:36:43,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974503093] [2021-11-07 15:36:43,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974503093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:36:43,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:36:43,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:36:43,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191062879] [2021-11-07 15:36:43,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:36:43,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:36:43,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:36:43,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:36:43,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:36:43,754 INFO L87 Difference]: Start difference. First operand 130553 states and 170272 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2021-11-07 15:36:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:36:48,364 INFO L93 Difference]: Finished difference Result 390963 states and 509917 transitions. [2021-11-07 15:36:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:36:48,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 160 [2021-11-07 15:36:48,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:36:49,088 INFO L225 Difference]: With dead ends: 390963 [2021-11-07 15:36:49,088 INFO L226 Difference]: Without dead ends: 260551 [2021-11-07 15:36:49,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:36:49,323 INFO L933 BasicCegarLoop]: 42929 mSDtfsCounter, 42603 mSDsluCounter, 42615 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42603 SdHoareTripleChecker+Valid, 85544 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.83ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 160.50ms IncrementalHoareTripleChecker+Time [2021-11-07 15:36:49,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42603 Valid, 85544 Invalid, 17 Unknown, 0 Unchecked, 76.83ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 160.50ms Time] [2021-11-07 15:36:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260551 states. [2021-11-07 15:36:54,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260551 to 260531. [2021-11-07 15:36:54,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260531 states, 260520 states have (on average 1.3042914171656688) internal successors, (339794), 260530 states have internal predecessors, (339794), 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)