./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 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-5f08f0f [2021-11-05 19:40:17,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:40:17,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:40:17,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:40:17,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:40:17,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:40:17,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:40:17,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:40:17,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:40:17,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:40:17,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:40:17,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:40:17,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:40:17,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:40:17,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:40:17,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:40:17,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:40:17,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:40:17,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:40:17,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:40:17,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:40:17,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:40:17,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:40:17,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:40:17,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:40:17,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:40:17,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:40:17,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:40:17,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:40:17,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:40:17,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:40:17,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:40:17,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:40:17,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:40:17,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:40:17,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:40:17,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:40:17,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:40:17,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:40:17,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:40:17,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:40:17,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:40:17,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:40:17,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:40:17,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:40:17,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:40:17,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:40:17,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:40:17,596 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:40:17,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:40:17,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:40:17,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:40:17,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:40:17,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:40:17,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:40:17,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:40:17,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:40:17,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:40:17,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:40:17,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:40:17,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:40:17,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:40:17,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:40:17,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:40:17,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:40:17,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:40:17,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:40:17,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:40:17,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:40:17,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:40:17,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:40:17,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2021-11-05 19:40:17,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:40:17,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:40:17,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:40:17,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:40:17,875 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:40:17,876 INFO L432 ainManager$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 [2021-11-05 19:40:17,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5af287b/299d5d3702ed4dd3917d594ae3c0beed/FLAG265d27b1e [2021-11-05 19:40:18,546 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:40:18,547 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 [2021-11-05 19:40:18,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5af287b/299d5d3702ed4dd3917d594ae3c0beed/FLAG265d27b1e [2021-11-05 19:40:18,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5af287b/299d5d3702ed4dd3917d594ae3c0beed [2021-11-05 19:40:18,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:40:18,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:40:18,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:40:18,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:40:18,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:40:18,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:40:18" (1/1) ... [2021-11-05 19:40:18,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cbc61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:18, skipping insertion in model container [2021-11-05 19:40:18,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:40:18" (1/1) ... [2021-11-05 19:40:18,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:40:19,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:40:20,373 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] [2021-11-05 19:40:20,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:40:20,438 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:40:20,824 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] [2021-11-05 19:40:20,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:40:20,889 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:40:20,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20 WrapperNode [2021-11-05 19:40:20,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:40:20,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:40:20,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:40:20,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:40:20,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:21,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:21,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:40:21,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:40:21,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:40:21,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:40:21,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:21,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:21,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:21,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:21,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:21,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:22,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:22,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:40:22,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:40:22,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:40:22,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:40:22,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (1/1) ... [2021-11-05 19:40:22,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:40:22,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:40:22,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 19:40:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:40:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:40:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:40:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:40:22,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 19:40:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:40:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:40:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:40:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-05 19:40:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:40:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:40:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:40:22,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:45:32,677 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:45:32,677 INFO L299 CfgBuilder]: Removed 2426 assume(true) statements. [2021-11-05 19:45:32,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:45:32 BoogieIcfgContainer [2021-11-05 19:45:32,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:45:32,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:45:32,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:45:32,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:45:32,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:40:18" (1/3) ... [2021-11-05 19:45:32,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bfed67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:45:32, skipping insertion in model container [2021-11-05 19:45:32,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:40:20" (2/3) ... [2021-11-05 19:45:32,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bfed67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:45:32, skipping insertion in model container [2021-11-05 19:45:32,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:45:32" (3/3) ... [2021-11-05 19:45:32,685 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 [2021-11-05 19:45:32,688 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:45:32,688 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-05 19:45:32,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:45:32,725 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 19:45:32,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-05 19:45:32,752 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) [2021-11-05 19:45:32,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 19:45:32,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:45:32,758 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] [2021-11-05 19:45:32,759 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)] === [2021-11-05 19:45:32,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:45:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1283141029, now seen corresponding path program 1 times [2021-11-05 19:45:32,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:45:32,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983742047] [2021-11-05 19:45:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:32,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:45:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:45:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:45:33,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:45:33,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983742047] [2021-11-05 19:45:33,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983742047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:45:33,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:45:33,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:45:33,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853274501] [2021-11-05 19:45:33,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:45:33,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:45:33,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:45:33,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:45:33,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:45:33,782 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) [2021-11-05 19:45:33,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:45:33,864 INFO L93 Difference]: Finished difference Result 4744 states and 6474 transitions. [2021-11-05 19:45:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:45:33,865 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 [2021-11-05 19:45:33,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:45:33,879 INFO L225 Difference]: With dead ends: 4744 [2021-11-05 19:45:33,880 INFO L226 Difference]: Without dead ends: 2363 [2021-11-05 19:45:33,886 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 [2021-11-05 19:45:33,888 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, 7.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:45:33,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3188 Invalid, 0 Unknown, 0 Unchecked, 7.64ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:45:33,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2021-11-05 19:45:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2363. [2021-11-05 19:45:33,967 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) [2021-11-05 19:45:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3171 transitions. [2021-11-05 19:45:33,972 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3171 transitions. Word has length 31 [2021-11-05 19:45:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:45:33,972 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 3171 transitions. [2021-11-05 19:45:33,972 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) [2021-11-05 19:45:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3171 transitions. [2021-11-05 19:45:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 19:45:33,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:45:33,978 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] [2021-11-05 19:45:33,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:45:33,978 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)] === [2021-11-05 19:45:33,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:45:33,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2100789479, now seen corresponding path program 1 times [2021-11-05 19:45:33,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:45:33,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278657013] [2021-11-05 19:45:33,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:33,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:45:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:45:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:45:34,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:45:34,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278657013] [2021-11-05 19:45:34,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278657013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:45:34,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:45:34,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:45:34,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253382398] [2021-11-05 19:45:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:45:34,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:45:34,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:45:34,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:45:34,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:34,643 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) [2021-11-05 19:45:35,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:45:35,190 INFO L93 Difference]: Finished difference Result 5999 states and 8013 transitions. [2021-11-05 19:45:35,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:45:35,191 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 [2021-11-05 19:45:35,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:45:35,202 INFO L225 Difference]: With dead ends: 5999 [2021-11-05 19:45:35,202 INFO L226 Difference]: Without dead ends: 3640 [2021-11-05 19:45:35,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:35,208 INFO L933 BasicCegarLoop]: 3170 mSDtfsCounter, 1670 mSDsluCounter, 3143 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 413.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.34ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 454.62ms IncrementalHoareTripleChecker+Time [2021-11-05 19:45:35,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1670 Valid, 6313 Invalid, 26 Unknown, 0 Unchecked, 10.34ms Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 454.62ms Time] [2021-11-05 19:45:35,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2021-11-05 19:45:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3617. [2021-11-05 19:45:35,269 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) [2021-11-05 19:45:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4831 transitions. [2021-11-05 19:45:35,278 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4831 transitions. Word has length 31 [2021-11-05 19:45:35,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:45:35,279 INFO L470 AbstractCegarLoop]: Abstraction has 3617 states and 4831 transitions. [2021-11-05 19:45:35,279 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) [2021-11-05 19:45:35,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4831 transitions. [2021-11-05 19:45:35,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-05 19:45:35,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:45:35,283 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] [2021-11-05 19:45:35,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:45:35,285 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)] === [2021-11-05 19:45:35,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:45:35,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1868839532, now seen corresponding path program 1 times [2021-11-05 19:45:35,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:45:35,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508680145] [2021-11-05 19:45:35,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:35,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:45:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:45:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 19:45:36,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:45:36,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508680145] [2021-11-05 19:45:36,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508680145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:45:36,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:45:36,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:45:36,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614693871] [2021-11-05 19:45:36,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:45:36,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:45:36,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:45:36,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:45:36,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:36,157 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) [2021-11-05 19:45:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:45:36,738 INFO L93 Difference]: Finished difference Result 6058 states and 8076 transitions. [2021-11-05 19:45:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:45:36,739 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 [2021-11-05 19:45:36,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:45:36,755 INFO L225 Difference]: With dead ends: 6058 [2021-11-05 19:45:36,755 INFO L226 Difference]: Without dead ends: 6038 [2021-11-05 19:45:36,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:36,758 INFO L933 BasicCegarLoop]: 3161 mSDtfsCounter, 1660 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 473.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.87ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 497.15ms IncrementalHoareTripleChecker+Time [2021-11-05 19:45:36,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1660 Valid, 6239 Invalid, 76 Unknown, 0 Unchecked, 6.87ms Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 497.15ms Time] [2021-11-05 19:45:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-11-05 19:45:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 6004. [2021-11-05 19:45:36,840 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) [2021-11-05 19:45:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 8002 transitions. [2021-11-05 19:45:36,852 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 8002 transitions. Word has length 62 [2021-11-05 19:45:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:45:36,852 INFO L470 AbstractCegarLoop]: Abstraction has 6004 states and 8002 transitions. [2021-11-05 19:45:36,853 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) [2021-11-05 19:45:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 8002 transitions. [2021-11-05 19:45:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 19:45:36,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:45:36,856 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] [2021-11-05 19:45:36,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:45:36,857 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)] === [2021-11-05 19:45:36,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:45:36,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1644296629, now seen corresponding path program 1 times [2021-11-05 19:45:36,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:45:36,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899584102] [2021-11-05 19:45:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:36,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:45:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:45:37,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 19:45:37,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:45:37,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899584102] [2021-11-05 19:45:37,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899584102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:45:37,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:45:37,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:45:37,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865094428] [2021-11-05 19:45:37,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:45:37,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:45:37,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:45:37,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:45:37,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:37,752 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) [2021-11-05 19:45:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:45:37,930 INFO L93 Difference]: Finished difference Result 12006 states and 16004 transitions. [2021-11-05 19:45:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:45:37,930 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 [2021-11-05 19:45:37,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:45:37,951 INFO L225 Difference]: With dead ends: 12006 [2021-11-05 19:45:37,951 INFO L226 Difference]: Without dead ends: 6006 [2021-11-05 19:45:37,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:37,963 INFO L933 BasicCegarLoop]: 3170 mSDtfsCounter, 0 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.40ms IncrementalHoareTripleChecker+Time [2021-11-05 19:45:37,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6336 Invalid, 5 Unknown, 0 Unchecked, 3.62ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 87.40ms Time] [2021-11-05 19:45:37,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-11-05 19:45:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 6006. [2021-11-05 19:45:38,080 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) [2021-11-05 19:45:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 8004 transitions. [2021-11-05 19:45:38,095 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 8004 transitions. Word has length 82 [2021-11-05 19:45:38,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:45:38,096 INFO L470 AbstractCegarLoop]: Abstraction has 6006 states and 8004 transitions. [2021-11-05 19:45:38,096 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) [2021-11-05 19:45:38,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 8004 transitions. [2021-11-05 19:45:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 19:45:38,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:45:38,101 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] [2021-11-05 19:45:38,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:45:38,102 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)] === [2021-11-05 19:45:38,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:45:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2066998455, now seen corresponding path program 1 times [2021-11-05 19:45:38,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:45:38,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284512925] [2021-11-05 19:45:38,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:38,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:45:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:45:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 19:45:39,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:45:39,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284512925] [2021-11-05 19:45:39,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284512925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:45:39,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:45:39,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:45:39,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822821845] [2021-11-05 19:45:39,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:45:39,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:45:39,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:45:39,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:45:39,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:39,013 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) [2021-11-05 19:45:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:45:39,163 INFO L93 Difference]: Finished difference Result 12010 states and 16008 transitions. [2021-11-05 19:45:39,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:45:39,166 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 [2021-11-05 19:45:39,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:45:39,184 INFO L225 Difference]: With dead ends: 12010 [2021-11-05 19:45:39,185 INFO L226 Difference]: Without dead ends: 6008 [2021-11-05 19:45:39,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:39,195 INFO L933 BasicCegarLoop]: 3170 mSDtfsCounter, 0 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6335 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.95ms IncrementalHoareTripleChecker+Time [2021-11-05 19:45:39,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6335 Invalid, 6 Unknown, 0 Unchecked, 3.51ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 66.95ms Time] [2021-11-05 19:45:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-11-05 19:45:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 6008. [2021-11-05 19:45:39,435 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) [2021-11-05 19:45:39,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6008 states to 6008 states and 8006 transitions. [2021-11-05 19:45:39,451 INFO L78 Accepts]: Start accepts. Automaton has 6008 states and 8006 transitions. Word has length 82 [2021-11-05 19:45:39,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:45:39,452 INFO L470 AbstractCegarLoop]: Abstraction has 6008 states and 8006 transitions. [2021-11-05 19:45:39,453 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) [2021-11-05 19:45:39,455 INFO L276 IsEmpty]: Start isEmpty. Operand 6008 states and 8006 transitions. [2021-11-05 19:45:39,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 19:45:39,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:45:39,459 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] [2021-11-05 19:45:39,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:45:39,460 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)] === [2021-11-05 19:45:39,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:45:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash 478650553, now seen corresponding path program 1 times [2021-11-05 19:45:39,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:45:39,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783892827] [2021-11-05 19:45:39,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:39,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:45:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:45:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 19:45:43,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:45:43,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783892827] [2021-11-05 19:45:43,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783892827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:45:43,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:45:43,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:45:43,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162956545] [2021-11-05 19:45:43,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:45:43,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:45:43,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:45:43,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:45:43,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:43,101 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) [2021-11-05 19:45:43,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:45:43,520 INFO L93 Difference]: Finished difference Result 12026 states and 16036 transitions. [2021-11-05 19:45:43,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:45:43,521 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 [2021-11-05 19:45:43,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:45:43,549 INFO L225 Difference]: With dead ends: 12026 [2021-11-05 19:45:43,550 INFO L226 Difference]: Without dead ends: 6022 [2021-11-05 19:45:43,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:45:43,561 INFO L933 BasicCegarLoop]: 3166 mSDtfsCounter, 0 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 320.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.98ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 341.05ms IncrementalHoareTripleChecker+Time [2021-11-05 19:45:43,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6304 Invalid, 41 Unknown, 0 Unchecked, 5.98ms Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 341.05ms Time] [2021-11-05 19:45:43,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-11-05 19:45:43,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 6022. [2021-11-05 19:45:43,663 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) [2021-11-05 19:45:43,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6022 states to 6022 states and 8020 transitions. [2021-11-05 19:45:43,672 INFO L78 Accepts]: Start accepts. Automaton has 6022 states and 8020 transitions. Word has length 82 [2021-11-05 19:45:43,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:45:43,673 INFO L470 AbstractCegarLoop]: Abstraction has 6022 states and 8020 transitions. [2021-11-05 19:45:43,673 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) [2021-11-05 19:45:43,673 INFO L276 IsEmpty]: Start isEmpty. Operand 6022 states and 8020 transitions. [2021-11-05 19:45:43,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 19:45:43,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:45:43,679 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] [2021-11-05 19:45:43,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:45:43,679 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)] === [2021-11-05 19:45:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:45:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1698789473, now seen corresponding path program 1 times [2021-11-05 19:45:43,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:45:43,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849340951] [2021-11-05 19:45:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:43,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:45:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:45:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-05 19:45:46,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:45:46,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849340951] [2021-11-05 19:45:46,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849340951] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 19:45:46,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550214670] [2021-11-05 19:45:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:45:46,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:45:46,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:45:46,485 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) [2021-11-05 19:45:46,487 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