./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 5f08f0f0 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-5f08f0f [2021-11-05 15:41:06,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:41:06,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:41:06,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:41:06,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:41:06,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:41:06,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:41:06,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:41:06,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:41:06,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:41:06,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:41:06,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:41:06,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:41:06,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:41:06,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:41:06,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:41:06,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:41:06,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:41:06,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:41:06,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:41:06,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:41:06,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:41:06,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:41:06,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:41:06,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:41:06,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:41:06,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:41:06,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:41:06,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:41:06,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:41:06,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:41:06,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:41:06,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:41:06,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:41:06,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:41:06,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:41:06,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:41:06,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:41:06,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:41:06,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:41:06,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:41:06,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 15:41:06,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:41:06,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:41:06,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:41:06,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:41:06,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:41:06,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:41:06,538 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:41:06,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:41:06,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 15:41:06,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:41:06,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:41:06,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:41:06,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:41:06,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:41:06,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:41:06,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:41:06,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:41:06,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:41:06,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:41:06,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:41:06,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:41:06,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:41:06,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:41:06,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 15:41:06,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 15:41:06,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:41:06,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:41:06,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:41:06,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:41:06,544 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4705a4099b2770b6bf70acba4c3ce2ea2827cb6710bce661288fee177be59f8c [2021-11-05 15:41:06,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:41:06,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:41:06,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:41:06,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:41:06,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:41:06,856 INFO L432 ainManager$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 [2021-11-05 15:41:06,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fabd9e5/c3bbb4f2184343b1aa4b735432869083/FLAGa249956a1 [2021-11-05 15:41:07,801 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:41:07,802 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 [2021-11-05 15:41:07,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fabd9e5/c3bbb4f2184343b1aa4b735432869083/FLAGa249956a1 [2021-11-05 15:41:07,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7fabd9e5/c3bbb4f2184343b1aa4b735432869083 [2021-11-05 15:41:07,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:41:07,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:41:07,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:41:07,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:41:07,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:41:07,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:41:07" (1/1) ... [2021-11-05 15:41:07,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629feb96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:07, skipping insertion in model container [2021-11-05 15:41:07,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:41:07" (1/1) ... [2021-11-05 15:41:07,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:41:08,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:41:10,471 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:10,473 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:10,473 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:11,187 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:11,192 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:11,193 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:11,197 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:13,297 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] [2021-11-05 15:41:13,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:41:13,605 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:41:13,861 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:13,862 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:13,863 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:13,996 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:13,999 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:14,003 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:14,011 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-05 15:41:14,200 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] [2021-11-05 15:41:14,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:41:14,373 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:41:14,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14 WrapperNode [2021-11-05 15:41:14,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:41:14,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:41:14,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:41:14,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:41:14,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:14,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:14,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:41:14,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:41:14,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:41:14,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:41:14,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:14,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:14,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:14,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:14,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:15,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:15,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:15,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:41:15,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:41:15,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:41:15,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:41:15,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (1/1) ... [2021-11-05 15:41:15,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:41:15,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:41:15,117 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) [2021-11-05 15:41:15,134 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 [2021-11-05 15:41:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq_one [2021-11-05 15:41:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq_one [2021-11-05 15:41:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq [2021-11-05 15:41:15,145 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq [2021-11-05 15:41:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:41:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:41:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 15:41:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 15:41:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 15:41:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:41:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:41:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_cq_op [2021-11-05 15:41:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_cq_op [2021-11-05 15:41:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:41:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 15:41:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-05 15:41:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-05 15:41:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 15:41:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-05 15:55:21,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:55:21,882 INFO L299 CfgBuilder]: Removed 1444 assume(true) statements. [2021-11-05 15:55:21,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:55:21 BoogieIcfgContainer [2021-11-05 15:55:21,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:55:21,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:55:21,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:55:21,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:55:21,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:41:07" (1/3) ... [2021-11-05 15:55:21,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472a4024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:55:21, skipping insertion in model container [2021-11-05 15:55:21,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:41:14" (2/3) ... [2021-11-05 15:55:21,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472a4024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:55:21, skipping insertion in model container [2021-11-05 15:55:21,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:55:21" (3/3) ... [2021-11-05 15:55:21,892 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2021-11-05 15:55:21,895 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:55:21,896 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-05 15:55:21,939 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:55:21,943 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 [2021-11-05 15:55:21,943 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-05 15:55:21,978 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) [2021-11-05 15:55:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-05 15:55:21,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:55:21,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:55:21,982 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)] === [2021-11-05 15:55:21,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:55:21,987 INFO L85 PathProgramCache]: Analyzing trace with hash 857981395, now seen corresponding path program 1 times [2021-11-05 15:55:21,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:55:21,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560606739] [2021-11-05 15:55:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:55:21,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:55:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:55:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:55:23,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:55:23,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560606739] [2021-11-05 15:55:23,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560606739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:55:23,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:55:23,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:55:23,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017724238] [2021-11-05 15:55:23,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:55:23,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:55:23,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:55:23,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:55:23,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:23,441 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) [2021-11-05 15:55:23,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:55:23,920 INFO L93 Difference]: Finished difference Result 3013 states and 4002 transitions. [2021-11-05 15:55:23,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:55:23,922 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 [2021-11-05 15:55:23,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:55:23,939 INFO L225 Difference]: With dead ends: 3013 [2021-11-05 15:55:23,939 INFO L226 Difference]: Without dead ends: 1586 [2021-11-05 15:55:23,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:23,951 INFO L933 BasicCegarLoop]: 1846 mSDtfsCounter, 230 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 305.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.52ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 363.94ms IncrementalHoareTripleChecker+Time [2021-11-05 15:55:23,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3675 Invalid, 17 Unknown, 0 Unchecked, 12.52ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 363.94ms Time] [2021-11-05 15:55:23,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2021-11-05 15:55:24,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1492. [2021-11-05 15:55:24,030 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) [2021-11-05 15:55:24,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1948 transitions. [2021-11-05 15:55:24,035 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1948 transitions. Word has length 14 [2021-11-05 15:55:24,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:55:24,036 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 1948 transitions. [2021-11-05 15:55:24,036 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) [2021-11-05 15:55:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1948 transitions. [2021-11-05 15:55:24,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-05 15:55:24,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:55:24,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:55:24,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 15:55:24,039 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)] === [2021-11-05 15:55:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:55:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash -934336303, now seen corresponding path program 1 times [2021-11-05 15:55:24,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:55:24,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539438242] [2021-11-05 15:55:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:55:24,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:55:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:55:25,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:55:25,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:55:25,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539438242] [2021-11-05 15:55:25,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539438242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:55:25,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:55:25,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:55:25,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885600310] [2021-11-05 15:55:25,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:55:25,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:55:25,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:55:25,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:55:25,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:25,027 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) [2021-11-05 15:55:27,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:55:27,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:55:27,481 INFO L93 Difference]: Finished difference Result 4224 states and 5537 transitions. [2021-11-05 15:55:27,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:55:27,486 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 [2021-11-05 15:55:27,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:55:27,495 INFO L225 Difference]: With dead ends: 4224 [2021-11-05 15:55:27,495 INFO L226 Difference]: Without dead ends: 2735 [2021-11-05 15:55:27,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:27,499 INFO L933 BasicCegarLoop]: 3426 mSDtfsCounter, 1709 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2263.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 5149 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.52ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2369.70ms IncrementalHoareTripleChecker+Time [2021-11-05 15:55:27,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1709 Valid, 5149 Invalid, 15 Unknown, 0 Unchecked, 6.52ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2369.70ms Time] [2021-11-05 15:55:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2021-11-05 15:55:27,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2721. [2021-11-05 15:55:27,549 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) [2021-11-05 15:55:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3579 transitions. [2021-11-05 15:55:27,555 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3579 transitions. Word has length 19 [2021-11-05 15:55:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:55:27,557 INFO L470 AbstractCegarLoop]: Abstraction has 2721 states and 3579 transitions. [2021-11-05 15:55:27,557 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) [2021-11-05 15:55:27,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3579 transitions. [2021-11-05 15:55:27,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 15:55:27,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:55:27,558 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] [2021-11-05 15:55:27,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 15:55:27,559 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)] === [2021-11-05 15:55:27,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:55:27,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1731109075, now seen corresponding path program 1 times [2021-11-05 15:55:27,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:55:27,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733945983] [2021-11-05 15:55:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:55:27,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:55:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:55:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:55:28,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:55:28,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733945983] [2021-11-05 15:55:28,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733945983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:55:28,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:55:28,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:55:28,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920944068] [2021-11-05 15:55:28,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:55:28,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:55:28,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:55:28,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:55:28,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:28,772 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) [2021-11-05 15:55:31,008 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 [] [2021-11-05 15:55:31,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:55:31,143 INFO L93 Difference]: Finished difference Result 2721 states and 3579 transitions. [2021-11-05 15:55:31,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:55:31,144 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 [2021-11-05 15:55:31,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:55:31,151 INFO L225 Difference]: With dead ends: 2721 [2021-11-05 15:55:31,152 INFO L226 Difference]: Without dead ends: 2719 [2021-11-05 15:55:31,153 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 [2021-11-05 15:55:31,153 INFO L933 BasicCegarLoop]: 1826 mSDtfsCounter, 1804 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2228.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2318.18ms IncrementalHoareTripleChecker+Time [2021-11-05 15:55:31,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1804 Valid, 1826 Invalid, 2 Unknown, 0 Unchecked, 3.59ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2318.18ms Time] [2021-11-05 15:55:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-11-05 15:55:31,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2021-11-05 15:55:31,210 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) [2021-11-05 15:55:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3577 transitions. [2021-11-05 15:55:31,219 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3577 transitions. Word has length 25 [2021-11-05 15:55:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:55:31,219 INFO L470 AbstractCegarLoop]: Abstraction has 2719 states and 3577 transitions. [2021-11-05 15:55:31,220 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) [2021-11-05 15:55:31,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3577 transitions. [2021-11-05 15:55:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-05 15:55:31,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:55:31,221 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] [2021-11-05 15:55:31,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 15:55:31,221 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)] === [2021-11-05 15:55:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:55:31,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2124776343, now seen corresponding path program 1 times [2021-11-05 15:55:31,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:55:31,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899714139] [2021-11-05 15:55:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:55:31,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:55:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:55:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:55:32,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:55:32,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899714139] [2021-11-05 15:55:32,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899714139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:55:32,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:55:32,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:55:32,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509806155] [2021-11-05 15:55:32,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:55:32,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:55:32,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:55:32,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:55:32,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:32,249 INFO L87 Difference]: Start difference. First operand 2719 states and 3577 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) Killed by 15