./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.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 4705a4099b2770b6bf70acba4c3ce2ea2827cb6710bce661288fee177be59f8c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 12:15:00,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:15:00,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:15:00,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:15:00,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:15:00,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:15:00,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:15:00,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:15:00,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:15:00,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:15:00,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:15:00,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:15:00,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:15:00,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:15:00,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:15:00,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:15:00,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:15:00,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:15:00,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:15:00,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:15:00,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:15:00,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:15:00,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:15:00,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:15:00,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:15:00,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:15:00,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:15:00,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:15:00,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:15:00,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:15:00,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:15:00,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:15:00,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:15:00,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:15:00,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:15:00,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:15:00,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:15:00,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:15:00,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:15:00,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:15:00,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:15:00,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:15:00,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:15:00,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:15:00,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:15:00,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:15:00,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:15:00,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:15:00,148 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:15:00,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:15:00,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:15:00,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:15:00,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:15:00,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:15:00,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:15:00,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:15:00,150 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:15:00,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:15:00,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:15:00,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:15:00,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:15:00,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:15:00,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:15:00,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:15:00,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:15:00,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:15:00,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:15:00,152 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:15:00,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:15:00,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:15:00,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:15:00,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4705a4099b2770b6bf70acba4c3ce2ea2827cb6710bce661288fee177be59f8c [2021-11-07 12:15:00,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:15:00,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:15:00,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:15:00,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:15:00,390 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:15:00,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2021-11-07 12:15:00,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d85e34ee/67e6c31c264442f7834a7ab9e59de63b/FLAGc4abca11b [2021-11-07 12:15:01,171 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:15:01,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2021-11-07 12:15:01,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d85e34ee/67e6c31c264442f7834a7ab9e59de63b/FLAGc4abca11b [2021-11-07 12:15:01,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d85e34ee/67e6c31c264442f7834a7ab9e59de63b [2021-11-07 12:15:01,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:15:01,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:15:01,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:15:01,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:15:01,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:15:01,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:15:01" (1/1) ... [2021-11-07 12:15:01,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0bb68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:01, skipping insertion in model container [2021-11-07 12:15:01,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:15:01" (1/1) ... [2021-11-07 12:15:01,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:15:01,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:15:04,549 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:04,551 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:04,551 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:05,303 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:05,309 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:05,310 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:05,314 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:07,774 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i[741742,741755] [2021-11-07 12:15:07,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:15:07,961 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:15:08,166 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:08,167 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:08,168 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:08,278 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:08,283 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:08,286 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:08,294 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-07 12:15:08,510 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i[741742,741755] [2021-11-07 12:15:08,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:15:08,666 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:15:08,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08 WrapperNode [2021-11-07 12:15:08,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:15:08,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:15:08,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:15:08,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:15:08,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:08,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:15:09,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:15:09,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:15:09,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:15:09,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:15:09,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:15:09,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:15:09,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:15:09,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (1/1) ... [2021-11-07 12:15:09,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:15:09,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:15:09,729 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 12:15:09,742 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 12:15:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq_one [2021-11-07 12:15:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq_one [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 12:15:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq [2021-11-07 12:15:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq [2021-11-07 12:15:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:15:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:15:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 12:15:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 12:15:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 12:15:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:15:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:15:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_cq_op [2021-11-07 12:15:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_cq_op [2021-11-07 12:15:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:15:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:15:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-07 12:15:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-07 12:15:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:15:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 12:29:21,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:29:21,221 INFO L299 CfgBuilder]: Removed 1444 assume(true) statements. [2021-11-07 12:29:21,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:29:21 BoogieIcfgContainer [2021-11-07 12:29:21,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:29:21,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:29:21,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:29:21,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:29:21,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:15:01" (1/3) ... [2021-11-07 12:29:21,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3434dd00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:29:21, skipping insertion in model container [2021-11-07 12:29:21,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:15:08" (2/3) ... [2021-11-07 12:29:21,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3434dd00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:29:21, skipping insertion in model container [2021-11-07 12:29:21,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:29:21" (3/3) ... [2021-11-07 12:29:21,233 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2021-11-07 12:29:21,237 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:29:21,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 12:29:21,281 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:29:21,288 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 12:29:21,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 12:29:21,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 1414 states, 1388 states have (on average 1.34149855907781) internal successors, (1862), 1401 states have internal predecessors, (1862), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-07 12:29:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 12:29:21,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:29:21,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:29:21,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 12:29:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:29:21,329 INFO L85 PathProgramCache]: Analyzing trace with hash 857981395, now seen corresponding path program 1 times [2021-11-07 12:29:21,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:29:21,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110167764] [2021-11-07 12:29:21,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:29:21,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:29:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:29:22,788 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 12:29:22,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:29:22,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110167764] [2021-11-07 12:29:22,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110167764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:29:22,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:29:22,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:29:22,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068869243] [2021-11-07 12:29:22,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:29:22,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:29:22,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:29:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:29:22,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:29:22,815 INFO L87 Difference]: Start difference. First operand has 1414 states, 1388 states have (on average 1.34149855907781) internal successors, (1862), 1401 states have internal predecessors, (1862), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 12:29:23,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:29:23,344 INFO L93 Difference]: Finished difference Result 3013 states and 4002 transitions. [2021-11-07 12:29:23,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:29:23,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-07 12:29:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:29:23,365 INFO L225 Difference]: With dead ends: 3013 [2021-11-07 12:29:23,365 INFO L226 Difference]: Without dead ends: 1586 [2021-11-07 12:29:23,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:29:23,375 INFO L933 BasicCegarLoop]: 1846 mSDtfsCounter, 230 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 332.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.84ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408.19ms IncrementalHoareTripleChecker+Time [2021-11-07 12:29:23,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3675 Invalid, 17 Unknown, 0 Unchecked, 13.84ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 408.19ms Time] [2021-11-07 12:29:23,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2021-11-07 12:29:23,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1492. [2021-11-07 12:29:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1467 states have (on average 1.3169734151329244) internal successors, (1932), 1479 states have internal predecessors, (1932), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-07 12:29:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1948 transitions. [2021-11-07 12:29:23,458 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1948 transitions. Word has length 14 [2021-11-07 12:29:23,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:29:23,458 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 1948 transitions. [2021-11-07 12:29:23,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 12:29:23,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1948 transitions. [2021-11-07 12:29:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 12:29:23,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:29:23,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:29:23,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 12:29:23,462 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 12:29:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:29:23,463 INFO L85 PathProgramCache]: Analyzing trace with hash -934336303, now seen corresponding path program 1 times [2021-11-07 12:29:23,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:29:23,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795556589] [2021-11-07 12:29:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:29:23,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:29:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:29:24,522 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 12:29:24,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:29:24,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795556589] [2021-11-07 12:29:24,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795556589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:29:24,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:29:24,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:29:24,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540320470] [2021-11-07 12:29:24,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:29:24,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:29:24,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:29:24,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:29:24,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:29:24,528 INFO L87 Difference]: Start difference. First operand 1492 states and 1948 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 12:29:26,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:29:26,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:29:26,946 INFO L93 Difference]: Finished difference Result 4224 states and 5537 transitions. [2021-11-07 12:29:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:29:26,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-07 12:29:26,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:29:26,957 INFO L225 Difference]: With dead ends: 4224 [2021-11-07 12:29:26,957 INFO L226 Difference]: Without dead ends: 2735 [2021-11-07 12:29:26,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:29:26,961 INFO L933 BasicCegarLoop]: 3426 mSDtfsCounter, 1709 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2255.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 5149 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.73ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2331.29ms IncrementalHoareTripleChecker+Time [2021-11-07 12:29:26,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1709 Valid, 5149 Invalid, 15 Unknown, 0 Unchecked, 8.73ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2331.29ms Time] [2021-11-07 12:29:26,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2021-11-07 12:29:27,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2721. [2021-11-07 12:29:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2684 states have (on average 1.3215350223546944) internal successors, (3547), 2696 states have internal predecessors, (3547), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-07 12:29:27,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3579 transitions. [2021-11-07 12:29:27,026 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3579 transitions. Word has length 19 [2021-11-07 12:29:27,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:29:27,026 INFO L470 AbstractCegarLoop]: Abstraction has 2721 states and 3579 transitions. [2021-11-07 12:29:27,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 12:29:27,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3579 transitions. [2021-11-07 12:29:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 12:29:27,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:29:27,027 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] [2021-11-07 12:29:27,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 12:29:27,027 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 12:29:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:29:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1731109075, now seen corresponding path program 1 times [2021-11-07 12:29:27,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:29:27,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282639282] [2021-11-07 12:29:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:29:27,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:29:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:29:28,264 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 12:29:28,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:29:28,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282639282] [2021-11-07 12:29:28,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282639282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:29:28,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:29:28,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:29:28,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013496940] [2021-11-07 12:29:28,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:29:28,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:29:28,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:29:28,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:29:28,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:29:28,270 INFO L87 Difference]: Start difference. First operand 2721 states and 3579 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 12:29:30,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:29:30,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:29:30,661 INFO L93 Difference]: Finished difference Result 2721 states and 3579 transitions. [2021-11-07 12:29:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:29:30,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-11-07 12:29:30,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:29:30,670 INFO L225 Difference]: With dead ends: 2721 [2021-11-07 12:29:30,671 INFO L226 Difference]: Without dead ends: 2719 [2021-11-07 12:29:30,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:29:30,673 INFO L933 BasicCegarLoop]: 1826 mSDtfsCounter, 1804 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2267.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2344.59ms IncrementalHoareTripleChecker+Time [2021-11-07 12:29:30,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1804 Valid, 1826 Invalid, 2 Unknown, 0 Unchecked, 3.24ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2344.59ms Time] [2021-11-07 12:29:30,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-11-07 12:29:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2021-11-07 12:29:30,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2683 states have (on average 1.3212821468505405) internal successors, (3545), 2694 states have internal predecessors, (3545), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-07 12:29:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3577 transitions. [2021-11-07 12:29:30,738 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3577 transitions. Word has length 25 [2021-11-07 12:29:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:29:30,739 INFO L470 AbstractCegarLoop]: Abstraction has 2719 states and 3577 transitions. [2021-11-07 12:29:30,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 12:29:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3577 transitions. [2021-11-07 12:29:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 12:29:30,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:29:30,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:29:30,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 12:29:30,740 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 12:29:30,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:29:30,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2124776343, now seen corresponding path program 1 times [2021-11-07 12:29:30,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:29:30,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023692791] [2021-11-07 12:29:30,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:29:30,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:29:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15