./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 173e3943 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-dev-173e394 [2021-11-06 13:42:17,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:42:17,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:42:17,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:42:17,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:42:17,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:42:17,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:42:17,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:42:17,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:42:17,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:42:17,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:42:17,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:42:17,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:42:17,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:42:17,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:42:17,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:42:17,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:42:17,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:42:17,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:42:17,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:42:17,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:42:17,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:42:17,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:42:17,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:42:17,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:42:17,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:42:17,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:42:17,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:42:17,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:42:17,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:42:17,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:42:17,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:42:17,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:42:17,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:42:17,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:42:17,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:42:17,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:42:17,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:42:17,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:42:17,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:42:17,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:42:17,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 13:42:17,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:42:17,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:42:17,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:42:17,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:42:17,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:42:17,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:42:17,749 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:42:17,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:42:17,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 13:42:17,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:42:17,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:42:17,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:42:17,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:42:17,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:42:17,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:42:17,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:42:17,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:42:17,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:42:17,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:42:17,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:42:17,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:42:17,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:42:17,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:42:17,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 13:42:17,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 13:42:17,753 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:42:17,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:42:17,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:42:17,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:42:17,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4705a4099b2770b6bf70acba4c3ce2ea2827cb6710bce661288fee177be59f8c [2021-11-06 13:42:18,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:42:18,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:42:18,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:42:18,046 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:42:18,047 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:42:18,048 INFO L432 ainManager$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 [2021-11-06 13:42:18,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95be040dd/71243004af3c4447a3f3f1b9f0bfbc29/FLAGc1b5b2366 [2021-11-06 13:42:19,129 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:42:19,130 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 [2021-11-06 13:42:19,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95be040dd/71243004af3c4447a3f3f1b9f0bfbc29/FLAGc1b5b2366 [2021-11-06 13:42:19,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95be040dd/71243004af3c4447a3f3f1b9f0bfbc29 [2021-11-06 13:42:19,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:42:19,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:42:19,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:42:19,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:42:19,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:42:19,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:42:19" (1/1) ... [2021-11-06 13:42:19,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a0d400b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:19, skipping insertion in model container [2021-11-06 13:42:19,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:42:19" (1/1) ... [2021-11-06 13:42:19,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:42:19,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:42:22,744 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:22,747 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:22,747 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:23,755 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:23,762 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:23,764 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:23,769 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:26,632 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] [2021-11-06 13:42:26,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:42:27,027 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:42:27,372 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:27,374 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:27,374 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:27,525 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:27,533 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:27,539 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:27,552 WARN L1529 CHandler]: Possible shadowing of function abort [2021-11-06 13:42:27,959 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] [2021-11-06 13:42:27,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:42:28,234 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:42:28,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28 WrapperNode [2021-11-06 13:42:28,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:42:28,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:42:28,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:42:28,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:42:28,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:28,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:28,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:42:28,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:42:28,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:42:28,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:42:28,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:28,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:28,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:28,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:29,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:29,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:29,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:29,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:42:29,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:42:29,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:42:29,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:42:29,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (1/1) ... [2021-11-06 13:42:29,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:42:29,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:42:29,380 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) [2021-11-06 13:42:29,401 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 [2021-11-06 13:42:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq_one [2021-11-06 13:42:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq_one [2021-11-06 13:42:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:42:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 13:42:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 13:42:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 13:42:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:42:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:42:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 13:42:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq [2021-11-06 13:42:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq [2021-11-06 13:42:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:42:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:42:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 13:42:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 13:42:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 13:42:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:42:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:42:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_cq_op [2021-11-06 13:42:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_cq_op [2021-11-06 13:42:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:42:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 13:42:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-06 13:42:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-06 13:42:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 13:42:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 13:56:00,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 13:56:00,125 INFO L299 CfgBuilder]: Removed 1444 assume(true) statements. [2021-11-06 13:56:00,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:56:00 BoogieIcfgContainer [2021-11-06 13:56:00,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 13:56:00,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 13:56:00,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 13:56:00,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 13:56:00,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:42:19" (1/3) ... [2021-11-06 13:56:00,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60eb2167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:56:00, skipping insertion in model container [2021-11-06 13:56:00,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:28" (2/3) ... [2021-11-06 13:56:00,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60eb2167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:56:00, skipping insertion in model container [2021-11-06 13:56:00,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:56:00" (3/3) ... [2021-11-06 13:56:00,138 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2021-11-06 13:56:00,142 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 13:56:00,142 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-06 13:56:00,210 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 13:56:00,217 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 [2021-11-06 13:56:00,218 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-06 13:56:00,266 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) [2021-11-06 13:56:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-06 13:56:00,271 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:00,272 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:56:00,272 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)] === [2021-11-06 13:56:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:00,277 INFO L85 PathProgramCache]: Analyzing trace with hash 857981395, now seen corresponding path program 1 times [2021-11-06 13:56:00,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:00,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813379859] [2021-11-06 13:56:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:00,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:02,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:02,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813379859] [2021-11-06 13:56:02,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813379859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:02,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:02,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:02,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832179139] [2021-11-06 13:56:02,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:02,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:02,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:02,046 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) [2021-11-06 13:56:02,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:02,500 INFO L93 Difference]: Finished difference Result 3013 states and 4002 transitions. [2021-11-06 13:56:02,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:02,502 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 [2021-11-06 13:56:02,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:02,523 INFO L225 Difference]: With dead ends: 3013 [2021-11-06 13:56:02,523 INFO L226 Difference]: Without dead ends: 1586 [2021-11-06 13:56:02,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2021-11-06 13:56:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1492. [2021-11-06 13:56:02,636 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) [2021-11-06 13:56:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1948 transitions. [2021-11-06 13:56:02,749 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1948 transitions. Word has length 14 [2021-11-06 13:56:02,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:02,756 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 1948 transitions. [2021-11-06 13:56:02,756 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) [2021-11-06 13:56:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1948 transitions. [2021-11-06 13:56:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-06 13:56:02,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:02,759 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:56:02,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 13:56:02,760 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)] === [2021-11-06 13:56:02,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:02,767 INFO L85 PathProgramCache]: Analyzing trace with hash -934336303, now seen corresponding path program 1 times [2021-11-06 13:56:02,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:02,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762141781] [2021-11-06 13:56:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:02,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:04,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:04,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762141781] [2021-11-06 13:56:04,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762141781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:04,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:04,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:04,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11183937] [2021-11-06 13:56:04,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:04,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:04,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:04,177 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) [2021-11-06 13:56:06,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:06,673 INFO L93 Difference]: Finished difference Result 4224 states and 5537 transitions. [2021-11-06 13:56:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:06,674 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 [2021-11-06 13:56:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:06,687 INFO L225 Difference]: With dead ends: 4224 [2021-11-06 13:56:06,688 INFO L226 Difference]: Without dead ends: 2735 [2021-11-06 13:56:06,693 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:06,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2021-11-06 13:56:06,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2721. [2021-11-06 13:56:06,771 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) [2021-11-06 13:56:06,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3579 transitions. [2021-11-06 13:56:06,782 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3579 transitions. Word has length 19 [2021-11-06 13:56:06,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:06,782 INFO L470 AbstractCegarLoop]: Abstraction has 2721 states and 3579 transitions. [2021-11-06 13:56:06,783 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) [2021-11-06 13:56:06,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3579 transitions. [2021-11-06 13:56:06,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-06 13:56:06,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:06,785 INFO L513 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] [2021-11-06 13:56:06,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 13:56:06,785 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)] === [2021-11-06 13:56:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:06,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1731109075, now seen corresponding path program 1 times [2021-11-06 13:56:06,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:06,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63430448] [2021-11-06 13:56:06,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:06,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:08,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:08,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:08,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63430448] [2021-11-06 13:56:08,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63430448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:08,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:08,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:08,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856783085] [2021-11-06 13:56:08,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:08,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:08,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:08,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:08,437 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) [2021-11-06 13:56:10,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:10,932 INFO L93 Difference]: Finished difference Result 2721 states and 3579 transitions. [2021-11-06 13:56:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:10,933 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 [2021-11-06 13:56:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:10,943 INFO L225 Difference]: With dead ends: 2721 [2021-11-06 13:56:10,943 INFO L226 Difference]: Without dead ends: 2719 [2021-11-06 13:56:10,945 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:10,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-11-06 13:56:11,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2021-11-06 13:56:11,011 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) [2021-11-06 13:56:11,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3577 transitions. [2021-11-06 13:56:11,023 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3577 transitions. Word has length 25 [2021-11-06 13:56:11,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:11,024 INFO L470 AbstractCegarLoop]: Abstraction has 2719 states and 3577 transitions. [2021-11-06 13:56:11,025 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) [2021-11-06 13:56:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3577 transitions. [2021-11-06 13:56:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-06 13:56:11,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:11,029 INFO L513 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] [2021-11-06 13:56:11,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 13:56:11,030 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)] === [2021-11-06 13:56:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2124776343, now seen corresponding path program 1 times [2021-11-06 13:56:11,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:11,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008841084] [2021-11-06 13:56:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:11,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:12,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:12,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008841084] [2021-11-06 13:56:12,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008841084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:12,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:12,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:12,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259690539] [2021-11-06 13:56:12,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:12,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:12,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:12,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:12,482 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) [2021-11-06 13:56:15,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:15,018 INFO L93 Difference]: Finished difference Result 2719 states and 3577 transitions. [2021-11-06 13:56:15,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:15,019 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 26 [2021-11-06 13:56:15,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:15,029 INFO L225 Difference]: With dead ends: 2719 [2021-11-06 13:56:15,030 INFO L226 Difference]: Without dead ends: 2711 [2021-11-06 13:56:15,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:15,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2021-11-06 13:56:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2711. [2021-11-06 13:56:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2679 states have (on average 1.3191489361702127) internal successors, (3534), 2686 states have internal predecessors, (3534), 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) [2021-11-06 13:56:15,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3566 transitions. [2021-11-06 13:56:15,104 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3566 transitions. Word has length 26 [2021-11-06 13:56:15,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:15,105 INFO L470 AbstractCegarLoop]: Abstraction has 2711 states and 3566 transitions. [2021-11-06 13:56:15,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-06 13:56:15,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3566 transitions. [2021-11-06 13:56:15,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-06 13:56:15,108 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:15,108 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:56:15,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 13:56:15,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 13:56:15,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1443559773, now seen corresponding path program 1 times [2021-11-06 13:56:15,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:15,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866071139] [2021-11-06 13:56:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:15,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:16,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:16,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866071139] [2021-11-06 13:56:16,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866071139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:16,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:16,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:16,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859813012] [2021-11-06 13:56:16,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:16,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:16,495 INFO L87 Difference]: Start difference. First operand 2711 states and 3566 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-06 13:56:18,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:18,928 INFO L93 Difference]: Finished difference Result 2711 states and 3566 transitions. [2021-11-06 13:56:18,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:18,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-11-06 13:56:18,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:18,939 INFO L225 Difference]: With dead ends: 2711 [2021-11-06 13:56:18,939 INFO L226 Difference]: Without dead ends: 2709 [2021-11-06 13:56:18,941 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:18,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2021-11-06 13:56:19,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2709. [2021-11-06 13:56:19,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2678 states have (on average 1.3188946975354743) internal successors, (3532), 2684 states have internal predecessors, (3532), 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) [2021-11-06 13:56:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3564 transitions. [2021-11-06 13:56:19,017 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3564 transitions. Word has length 27 [2021-11-06 13:56:19,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:19,017 INFO L470 AbstractCegarLoop]: Abstraction has 2709 states and 3564 transitions. [2021-11-06 13:56:19,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-06 13:56:19,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3564 transitions. [2021-11-06 13:56:19,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-06 13:56:19,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:19,019 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:56:19,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 13:56:19,019 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 13:56:19,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1800682593, now seen corresponding path program 1 times [2021-11-06 13:56:19,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:19,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078914143] [2021-11-06 13:56:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:19,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:20,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:20,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078914143] [2021-11-06 13:56:20,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078914143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:20,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:20,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:20,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942936139] [2021-11-06 13:56:20,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:20,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:20,264 INFO L87 Difference]: Start difference. First operand 2709 states and 3564 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-11-06 13:56:22,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:22,680 INFO L93 Difference]: Finished difference Result 2709 states and 3564 transitions. [2021-11-06 13:56:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:22,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-11-06 13:56:22,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:22,691 INFO L225 Difference]: With dead ends: 2709 [2021-11-06 13:56:22,692 INFO L226 Difference]: Without dead ends: 2707 [2021-11-06 13:56:22,693 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:22,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2021-11-06 13:56:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2707. [2021-11-06 13:56:22,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2677 states have (on average 1.3186402689577885) internal successors, (3530), 2682 states have internal predecessors, (3530), 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) [2021-11-06 13:56:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3562 transitions. [2021-11-06 13:56:22,773 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3562 transitions. Word has length 28 [2021-11-06 13:56:22,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:22,774 INFO L470 AbstractCegarLoop]: Abstraction has 2707 states and 3562 transitions. [2021-11-06 13:56:22,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-11-06 13:56:22,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3562 transitions. [2021-11-06 13:56:22,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-06 13:56:22,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:22,775 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:56:22,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 13:56:22,775 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 13:56:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:22,776 INFO L85 PathProgramCache]: Analyzing trace with hash -13411865, now seen corresponding path program 1 times [2021-11-06 13:56:22,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:22,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766747449] [2021-11-06 13:56:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:22,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:24,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:24,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766747449] [2021-11-06 13:56:24,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766747449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:24,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:24,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:24,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392781575] [2021-11-06 13:56:24,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:24,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:24,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:24,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:24,006 INFO L87 Difference]: Start difference. First operand 2707 states and 3562 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-06 13:56:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:26,444 INFO L93 Difference]: Finished difference Result 2707 states and 3562 transitions. [2021-11-06 13:56:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:26,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-11-06 13:56:26,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:26,455 INFO L225 Difference]: With dead ends: 2707 [2021-11-06 13:56:26,456 INFO L226 Difference]: Without dead ends: 2705 [2021-11-06 13:56:26,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2021-11-06 13:56:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2705. [2021-11-06 13:56:26,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2676 states have (on average 1.3183856502242153) internal successors, (3528), 2680 states have internal predecessors, (3528), 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) [2021-11-06 13:56:26,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 3560 transitions. [2021-11-06 13:56:26,536 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 3560 transitions. Word has length 29 [2021-11-06 13:56:26,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:26,537 INFO L470 AbstractCegarLoop]: Abstraction has 2705 states and 3560 transitions. [2021-11-06 13:56:26,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-06 13:56:26,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 3560 transitions. [2021-11-06 13:56:26,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-06 13:56:26,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:26,539 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:56:26,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 13:56:26,540 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 13:56:26,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:26,540 INFO L85 PathProgramCache]: Analyzing trace with hash -415765205, now seen corresponding path program 1 times [2021-11-06 13:56:26,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:26,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252634016] [2021-11-06 13:56:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:26,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:27,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:27,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252634016] [2021-11-06 13:56:27,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252634016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:27,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:27,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:27,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424079865] [2021-11-06 13:56:27,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:27,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:27,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:27,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:27,616 INFO L87 Difference]: Start difference. First operand 2705 states and 3560 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-06 13:56:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:56:29,915 INFO L93 Difference]: Finished difference Result 2705 states and 3560 transitions. [2021-11-06 13:56:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:56:30,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-06 13:56:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:56:30,031 INFO L225 Difference]: With dead ends: 2705 [2021-11-06 13:56:30,031 INFO L226 Difference]: Without dead ends: 2621 [2021-11-06 13:56:30,033 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2021-11-06 13:56:30,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2621. [2021-11-06 13:56:30,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2593 states have (on average 1.321635171615889) internal successors, (3427), 2596 states have internal predecessors, (3427), 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) [2021-11-06 13:56:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 3459 transitions. [2021-11-06 13:56:30,127 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 3459 transitions. Word has length 30 [2021-11-06 13:56:30,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:56:30,128 INFO L470 AbstractCegarLoop]: Abstraction has 2621 states and 3459 transitions. [2021-11-06 13:56:30,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-06 13:56:30,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 3459 transitions. [2021-11-06 13:56:30,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-06 13:56:30,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:56:30,129 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:56:30,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 13:56:30,129 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 13:56:30,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:56:30,130 INFO L85 PathProgramCache]: Analyzing trace with hash 542156811, now seen corresponding path program 1 times [2021-11-06 13:56:30,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:56:30,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078988695] [2021-11-06 13:56:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:56:30,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:56:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:56:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:56:31,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:56:31,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078988695] [2021-11-06 13:56:31,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078988695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:56:31,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:56:31,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:56:31,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530101691] [2021-11-06 13:56:31,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:56:31,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:56:31,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:56:31,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:56:31,306 INFO L87 Difference]: Start difference. First operand 2621 states and 3459 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Killed by 15