./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 16:20:44,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 16:20:44,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 16:20:44,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 16:20:44,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 16:20:44,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 16:20:44,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 16:20:44,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 16:20:44,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 16:20:44,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 16:20:44,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 16:20:44,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 16:20:44,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 16:20:44,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 16:20:44,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 16:20:44,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 16:20:44,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 16:20:44,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 16:20:44,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 16:20:44,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 16:20:44,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 16:20:44,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 16:20:44,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 16:20:44,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 16:20:44,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 16:20:44,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 16:20:44,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 16:20:44,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 16:20:44,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 16:20:44,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 16:20:44,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 16:20:44,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 16:20:44,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 16:20:44,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 16:20:44,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 16:20:44,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 16:20:44,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 16:20:44,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 16:20:44,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 16:20:44,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 16:20:44,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 16:20:44,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 16:20:44,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 16:20:44,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 16:20:44,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 16:20:44,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 16:20:44,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 16:20:44,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 16:20:44,496 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 16:20:44,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 16:20:44,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 16:20:44,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 16:20:44,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 16:20:44,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 16:20:44,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 16:20:44,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 16:20:44,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 16:20:44,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 16:20:44,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 16:20:44,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 16:20:44,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 16:20:44,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:20:44,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 16:20:44,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 16:20:44,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 16:20:44,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 16:20:44,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 16:20:44,499 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 16:20:44,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 16:20:44,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 16:20:44,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 16:20:44,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2021-11-07 16:20:44,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 16:20:44,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 16:20:44,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 16:20:44,726 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 16:20:44,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 16:20:44,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2021-11-07 16:20:44,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4cb6d666/7720721bb44144b98497773e454820c3/FLAG00e407065 [2021-11-07 16:20:45,386 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 16:20:45,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2021-11-07 16:20:45,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4cb6d666/7720721bb44144b98497773e454820c3/FLAG00e407065 [2021-11-07 16:20:45,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4cb6d666/7720721bb44144b98497773e454820c3 [2021-11-07 16:20:45,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 16:20:45,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 16:20:45,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 16:20:45,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 16:20:45,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 16:20:45,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:45" (1/1) ... [2021-11-07 16:20:45,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c74de45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:45, skipping insertion in model container [2021-11-07 16:20:45,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:45" (1/1) ... [2021-11-07 16:20:45,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 16:20:45,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 16:20:47,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2021-11-07 16:20:47,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:20:47,257 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 16:20:47,613 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2021-11-07 16:20:47,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:20:47,697 INFO L208 MainTranslator]: Completed translation [2021-11-07 16:20:47,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47 WrapperNode [2021-11-07 16:20:47,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 16:20:47,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 16:20:47,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 16:20:47,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 16:20:47,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:47,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 16:20:48,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 16:20:48,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 16:20:48,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 16:20:48,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 16:20:48,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 16:20:48,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 16:20:48,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 16:20:48,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (1/1) ... [2021-11-07 16:20:48,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:20:48,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:20:48,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 16:20:48,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 16:20:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 16:20:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 16:20:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 16:20:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 16:20:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 16:20:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 16:20:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 16:20:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-07 16:20:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 16:20:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 16:20:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 16:20:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 16:25:57,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 16:25:57,476 INFO L299 CfgBuilder]: Removed 2426 assume(true) statements. [2021-11-07 16:25:57,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:25:57 BoogieIcfgContainer [2021-11-07 16:25:57,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 16:25:57,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 16:25:57,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 16:25:57,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 16:25:57,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:20:45" (1/3) ... [2021-11-07 16:25:57,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46528847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:25:57, skipping insertion in model container [2021-11-07 16:25:57,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:47" (2/3) ... [2021-11-07 16:25:57,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46528847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:25:57, skipping insertion in model container [2021-11-07 16:25:57,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:25:57" (3/3) ... [2021-11-07 16:25:57,493 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2021-11-07 16:25:57,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 16:25:57,496 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 16:25:57,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 16:25:57,555 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 16:25:57,555 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 16:25:57,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 2374 states, 2360 states have (on average 1.3724576271186442) internal successors, (3239), 2373 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:25:57,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 16:25:57,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:25:57,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:25:57,596 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:25:57,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:25:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1283141029, now seen corresponding path program 1 times [2021-11-07 16:25:57,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:25:57,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816755687] [2021-11-07 16:25:57,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:25:57,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:25:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:25:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:25:58,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:25:58,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816755687] [2021-11-07 16:25:58,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816755687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:25:58,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:25:58,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 16:25:58,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028542398] [2021-11-07 16:25:58,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:25:58,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 16:25:58,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:25:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 16:25:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:25:58,648 INFO L87 Difference]: Start difference. First operand has 2374 states, 2360 states have (on average 1.3724576271186442) internal successors, (3239), 2373 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:25:58,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:25:58,751 INFO L93 Difference]: Finished difference Result 4744 states and 6474 transitions. [2021-11-07 16:25:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 16:25:58,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-11-07 16:25:58,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:25:58,774 INFO L225 Difference]: With dead ends: 4744 [2021-11-07 16:25:58,774 INFO L226 Difference]: Without dead ends: 2363 [2021-11-07 16:25:58,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:25:58,786 INFO L933 BasicCegarLoop]: 3188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 16:25:58,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3188 Invalid, 0 Unknown, 0 Unchecked, 9.37ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 16:25:58,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2021-11-07 16:25:58,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2363. [2021-11-07 16:25:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2350 states have (on average 1.3493617021276596) internal successors, (3171), 2362 states have internal predecessors, (3171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:25:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3171 transitions. [2021-11-07 16:25:59,006 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3171 transitions. Word has length 31 [2021-11-07 16:25:59,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:25:59,007 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 3171 transitions. [2021-11-07 16:25:59,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:25:59,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3171 transitions. [2021-11-07 16:25:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 16:25:59,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:25:59,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:25:59,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 16:25:59,009 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:25:59,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:25:59,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2100789479, now seen corresponding path program 1 times [2021-11-07 16:25:59,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:25:59,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437560601] [2021-11-07 16:25:59,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:25:59,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:25:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:25:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:25:59,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:25:59,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437560601] [2021-11-07 16:25:59,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437560601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:25:59,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:25:59,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:25:59,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973835983] [2021-11-07 16:25:59,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:25:59,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:25:59,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:25:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:25:59,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:25:59,660 INFO L87 Difference]: Start difference. First operand 2363 states and 3171 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:26:00,192 INFO L93 Difference]: Finished difference Result 5999 states and 8013 transitions. [2021-11-07 16:26:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:26:00,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-07 16:26:00,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:26:00,204 INFO L225 Difference]: With dead ends: 5999 [2021-11-07 16:26:00,205 INFO L226 Difference]: Without dead ends: 3640 [2021-11-07 16:26:00,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:00,211 INFO L933 BasicCegarLoop]: 3170 mSDtfsCounter, 1670 mSDsluCounter, 3143 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 409.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 452.35ms IncrementalHoareTripleChecker+Time [2021-11-07 16:26:00,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1670 Valid, 6313 Invalid, 26 Unknown, 0 Unchecked, 8.80ms Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 452.35ms Time] [2021-11-07 16:26:00,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2021-11-07 16:26:00,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3617. [2021-11-07 16:26:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 3604 states have (on average 1.340455049944506) internal successors, (4831), 3616 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4831 transitions. [2021-11-07 16:26:00,283 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4831 transitions. Word has length 31 [2021-11-07 16:26:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:26:00,283 INFO L470 AbstractCegarLoop]: Abstraction has 3617 states and 4831 transitions. [2021-11-07 16:26:00,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4831 transitions. [2021-11-07 16:26:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 16:26:00,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:26:00,288 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:26:00,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 16:26:00,291 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:26:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:26:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1868839532, now seen corresponding path program 1 times [2021-11-07 16:26:00,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:26:00,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715821871] [2021-11-07 16:26:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:26:00,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:26:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:26:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 16:26:01,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:26:01,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715821871] [2021-11-07 16:26:01,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715821871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:26:01,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:26:01,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 16:26:01,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964129922] [2021-11-07 16:26:01,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:26:01,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:26:01,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:26:01,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:26:01,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:01,085 INFO L87 Difference]: Start difference. First operand 3617 states and 4831 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:26:01,645 INFO L93 Difference]: Finished difference Result 6058 states and 8076 transitions. [2021-11-07 16:26:01,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:26:01,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 62 [2021-11-07 16:26:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:26:01,666 INFO L225 Difference]: With dead ends: 6058 [2021-11-07 16:26:01,666 INFO L226 Difference]: Without dead ends: 6038 [2021-11-07 16:26:01,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:01,673 INFO L933 BasicCegarLoop]: 3161 mSDtfsCounter, 1660 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 444.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.09ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 472.13ms IncrementalHoareTripleChecker+Time [2021-11-07 16:26:01,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1660 Valid, 6239 Invalid, 76 Unknown, 0 Unchecked, 8.09ms Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 472.13ms Time] [2021-11-07 16:26:01,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-11-07 16:26:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 6004. [2021-11-07 16:26:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6004 states, 5991 states have (on average 1.3356701719245534) internal successors, (8002), 6003 states have internal predecessors, (8002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 8002 transitions. [2021-11-07 16:26:01,794 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 8002 transitions. Word has length 62 [2021-11-07 16:26:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:26:01,794 INFO L470 AbstractCegarLoop]: Abstraction has 6004 states and 8002 transitions. [2021-11-07 16:26:01,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:01,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 8002 transitions. [2021-11-07 16:26:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 16:26:01,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:26:01,800 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:26:01,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 16:26:01,801 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:26:01,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:26:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1644296629, now seen corresponding path program 1 times [2021-11-07 16:26:01,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:26:01,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643698088] [2021-11-07 16:26:01,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:26:01,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:26:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:26:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 16:26:02,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:26:02,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643698088] [2021-11-07 16:26:02,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643698088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:26:02,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:26:02,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:26:02,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206219799] [2021-11-07 16:26:02,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:26:02,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:26:02,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:26:02,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:26:02,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:02,634 INFO L87 Difference]: Start difference. First operand 6004 states and 8002 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:02,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:26:02,806 INFO L93 Difference]: Finished difference Result 12006 states and 16004 transitions. [2021-11-07 16:26:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:26:02,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 82 [2021-11-07 16:26:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:26:02,822 INFO L225 Difference]: With dead ends: 12006 [2021-11-07 16:26:02,823 INFO L226 Difference]: Without dead ends: 6006 [2021-11-07 16:26:02,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:02,831 INFO L933 BasicCegarLoop]: 3170 mSDtfsCounter, 0 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.54ms IncrementalHoareTripleChecker+Time [2021-11-07 16:26:02,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6336 Invalid, 5 Unknown, 0 Unchecked, 5.48ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 85.54ms Time] [2021-11-07 16:26:02,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-11-07 16:26:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 6006. [2021-11-07 16:26:02,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6006 states, 5993 states have (on average 1.3355581511763723) internal successors, (8004), 6005 states have internal predecessors, (8004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:02,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 8004 transitions. [2021-11-07 16:26:02,931 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 8004 transitions. Word has length 82 [2021-11-07 16:26:02,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:26:02,932 INFO L470 AbstractCegarLoop]: Abstraction has 6006 states and 8004 transitions. [2021-11-07 16:26:02,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:02,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 8004 transitions. [2021-11-07 16:26:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 16:26:02,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:26:02,935 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:26:02,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 16:26:02,936 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:26:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:26:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2066998455, now seen corresponding path program 1 times [2021-11-07 16:26:02,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:26:02,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448739219] [2021-11-07 16:26:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:26:02,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:26:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:26:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 16:26:03,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:26:03,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448739219] [2021-11-07 16:26:03,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448739219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:26:03,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:26:03,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:26:03,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019466042] [2021-11-07 16:26:03,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:26:03,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:26:03,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:26:03,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:26:03,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:03,686 INFO L87 Difference]: Start difference. First operand 6006 states and 8004 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:03,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:26:03,850 INFO L93 Difference]: Finished difference Result 12010 states and 16008 transitions. [2021-11-07 16:26:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:26:03,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 82 [2021-11-07 16:26:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:26:03,871 INFO L225 Difference]: With dead ends: 12010 [2021-11-07 16:26:03,871 INFO L226 Difference]: Without dead ends: 6008 [2021-11-07 16:26:03,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:03,880 INFO L933 BasicCegarLoop]: 3170 mSDtfsCounter, 0 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6335 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.31ms IncrementalHoareTripleChecker+Time [2021-11-07 16:26:03,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6335 Invalid, 6 Unknown, 0 Unchecked, 5.47ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 76.31ms Time] [2021-11-07 16:26:03,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-11-07 16:26:03,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 6008. [2021-11-07 16:26:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6008 states, 5995 states have (on average 1.335446205170976) internal successors, (8006), 6007 states have internal predecessors, (8006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6008 states to 6008 states and 8006 transitions. [2021-11-07 16:26:03,999 INFO L78 Accepts]: Start accepts. Automaton has 6008 states and 8006 transitions. Word has length 82 [2021-11-07 16:26:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:26:04,000 INFO L470 AbstractCegarLoop]: Abstraction has 6008 states and 8006 transitions. [2021-11-07 16:26:04,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:04,003 INFO L276 IsEmpty]: Start isEmpty. Operand 6008 states and 8006 transitions. [2021-11-07 16:26:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 16:26:04,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:26:04,006 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:26:04,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 16:26:04,007 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)] === [2021-11-07 16:26:04,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:26:04,007 INFO L85 PathProgramCache]: Analyzing trace with hash 478650553, now seen corresponding path program 1 times [2021-11-07 16:26:04,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:26:04,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068101724] [2021-11-07 16:26:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:26:04,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:26:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:26:07,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 16:26:07,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:26:07,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068101724] [2021-11-07 16:26:07,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068101724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:26:07,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:26:07,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:26:07,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274839893] [2021-11-07 16:26:07,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:26:07,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:26:07,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:26:07,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:26:07,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:07,472 INFO L87 Difference]: Start difference. First operand 6008 states and 8006 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:07,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:26:07,900 INFO L93 Difference]: Finished difference Result 12026 states and 16036 transitions. [2021-11-07 16:26:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:26:07,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 82 [2021-11-07 16:26:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:26:07,927 INFO L225 Difference]: With dead ends: 12026 [2021-11-07 16:26:07,927 INFO L226 Difference]: Without dead ends: 6022 [2021-11-07 16:26:07,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:26:07,936 INFO L933 BasicCegarLoop]: 3166 mSDtfsCounter, 0 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 314.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.54ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 338.07ms IncrementalHoareTripleChecker+Time [2021-11-07 16:26:07,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6304 Invalid, 41 Unknown, 0 Unchecked, 6.54ms Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 338.07ms Time] [2021-11-07 16:26:07,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-11-07 16:26:08,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 6022. [2021-11-07 16:26:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6022 states, 6009 states have (on average 1.3346646696621733) internal successors, (8020), 6021 states have internal predecessors, (8020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6022 states to 6022 states and 8020 transitions. [2021-11-07 16:26:08,049 INFO L78 Accepts]: Start accepts. Automaton has 6022 states and 8020 transitions. Word has length 82 [2021-11-07 16:26:08,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:26:08,051 INFO L470 AbstractCegarLoop]: Abstraction has 6022 states and 8020 transitions. [2021-11-07 16:26:08,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:26:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 6022 states and 8020 transitions. [2021-11-07 16:26:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 16:26:08,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:26:08,058 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:26:08,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 16:26:08,058 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:26:08,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:26:08,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1698789473, now seen corresponding path program 1 times [2021-11-07 16:26:08,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:26:08,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372117419] [2021-11-07 16:26:08,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:26:08,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:26:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:26:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 16:26:10,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:26:10,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372117419] [2021-11-07 16:26:10,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372117419] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 16:26:10,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077764504] [2021-11-07 16:26:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:26:10,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 16:26:10,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:26:10,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 16:26:10,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process Killed by 15