./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 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-dev-173e394 [2021-11-06 17:55:54,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:55:54,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:55:54,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:55:54,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:55:54,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:55:54,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:55:54,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:55:54,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:55:54,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:55:54,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:55:54,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:55:54,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:55:54,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:55:54,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:55:54,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:55:54,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:55:54,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:55:54,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:55:54,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:55:54,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:55:54,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:55:54,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:55:54,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:55:54,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:55:54,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:55:54,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:55:54,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:55:54,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:55:54,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:55:54,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:55:54,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:55:54,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:55:54,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:55:54,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:55:54,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:55:54,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:55:54,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:55:54,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:55:54,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:55:54,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:55:54,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:55:54,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:55:54,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:55:54,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:55:54,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:55:54,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:55:54,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:55:54,265 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:55:54,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:55:54,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:55:54,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:55:54,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:55:54,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:55:54,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:55:54,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:55:54,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:55:54,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:55:54,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:55:54,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:55:54,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:55:54,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:55:54,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:55:54,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:55:54,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:55:54,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:55:54,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:55:54,269 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:55:54,270 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:55:54,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:55:54,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:55:54,271 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2021-11-06 17:55:54,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:55:54,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:55:54,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:55:54,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:55:54,518 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:55:54,519 INFO L432 ainManager$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 [2021-11-06 17:55:54,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d9bac3b/138954bc5e24435f96303612b7c4d7f4/FLAGe67e56556 [2021-11-06 17:55:55,334 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:55:55,335 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 [2021-11-06 17:55:55,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d9bac3b/138954bc5e24435f96303612b7c4d7f4/FLAGe67e56556 [2021-11-06 17:55:55,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d9bac3b/138954bc5e24435f96303612b7c4d7f4 [2021-11-06 17:55:55,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:55:55,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:55:55,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:55:55,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:55:55,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:55:55,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:55:55" (1/1) ... [2021-11-06 17:55:55,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa852d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:55, skipping insertion in model container [2021-11-06 17:55:55,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:55:55" (1/1) ... [2021-11-06 17:55:55,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:55:56,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:55:58,122 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] [2021-11-06 17:55:58,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:55:58,201 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:55:58,657 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] [2021-11-06 17:55:58,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:55:58,784 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:55:58,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58 WrapperNode [2021-11-06 17:55:58,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:55:58,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:55:58,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:55:58,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:55:58,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:55:58,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:55:59,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:55:59,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:55:59,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:55:59,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:55:59,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:55:59,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:55:59,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:55:59,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:56:00,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:56:00,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:56:00,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:56:00,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:56:00,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:56:00,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:56:00,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:56:00,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (1/1) ... [2021-11-06 17:56:00,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:56:00,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:56:00,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 17:56:00,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 17:56:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:56:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:56:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:56:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:56:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:56:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:56:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:56:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-06 17:56:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:56:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:56:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:56:00,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:01:15,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:01:15,863 INFO L299 CfgBuilder]: Removed 2426 assume(true) statements. [2021-11-06 18:01:15,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:01:15 BoogieIcfgContainer [2021-11-06 18:01:15,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:01:15,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:01:15,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:01:15,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:01:15,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:55:55" (1/3) ... [2021-11-06 18:01:15,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456f5933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:01:15, skipping insertion in model container [2021-11-06 18:01:15,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:55:58" (2/3) ... [2021-11-06 18:01:15,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456f5933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:01:15, skipping insertion in model container [2021-11-06 18:01:15,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:01:15" (3/3) ... [2021-11-06 18:01:15,877 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 [2021-11-06 18:01:15,883 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:01:15,883 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-06 18:01:15,945 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:01:15,950 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 18:01:15,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-06 18:01:16,000 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) [2021-11-06 18:01:16,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-06 18:01:16,017 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:01:16,017 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:01:16,018 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)] === [2021-11-06 18:01:16,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:01:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1283141029, now seen corresponding path program 1 times [2021-11-06 18:01:16,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:01:16,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296173314] [2021-11-06 18:01:16,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:16,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:01:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:01:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:01:17,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:01:17,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296173314] [2021-11-06 18:01:17,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296173314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:01:17,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:01:17,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 18:01:17,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030832570] [2021-11-06 18:01:17,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 18:01:17,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:01:17,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 18:01:17,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 18:01:17,838 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) [2021-11-06 18:01:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:01:17,960 INFO L93 Difference]: Finished difference Result 4744 states and 6474 transitions. [2021-11-06 18:01:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 18:01:17,962 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 [2021-11-06 18:01:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:01:17,991 INFO L225 Difference]: With dead ends: 4744 [2021-11-06 18:01:17,992 INFO L226 Difference]: Without dead ends: 2363 [2021-11-06 18:01:18,004 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 18:01:18,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2021-11-06 18:01:18,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2363. [2021-11-06 18:01:18,126 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) [2021-11-06 18:01:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3171 transitions. [2021-11-06 18:01:18,136 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3171 transitions. Word has length 31 [2021-11-06 18:01:18,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:01:18,137 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 3171 transitions. [2021-11-06 18:01:18,138 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) [2021-11-06 18:01:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3171 transitions. [2021-11-06 18:01:18,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-06 18:01:18,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:01:18,142 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:01:18,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:01:18,142 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)] === [2021-11-06 18:01:18,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:01:18,145 INFO L85 PathProgramCache]: Analyzing trace with hash -2100789479, now seen corresponding path program 1 times [2021-11-06 18:01:18,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:01:18,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288087398] [2021-11-06 18:01:18,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:18,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:01:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:01:19,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:01:19,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:01:19,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288087398] [2021-11-06 18:01:19,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288087398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:01:19,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:01:19,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:01:19,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685405732] [2021-11-06 18:01:19,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:01:19,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:01:19,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:01:19,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:19,111 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) [2021-11-06 18:01:19,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:01:19,789 INFO L93 Difference]: Finished difference Result 5999 states and 8013 transitions. [2021-11-06 18:01:19,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:01:19,790 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 [2021-11-06 18:01:19,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:01:19,806 INFO L225 Difference]: With dead ends: 5999 [2021-11-06 18:01:19,807 INFO L226 Difference]: Without dead ends: 3640 [2021-11-06 18:01:19,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:19,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2021-11-06 18:01:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3617. [2021-11-06 18:01:19,891 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) [2021-11-06 18:01:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4831 transitions. [2021-11-06 18:01:19,904 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4831 transitions. Word has length 31 [2021-11-06 18:01:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:01:19,905 INFO L470 AbstractCegarLoop]: Abstraction has 3617 states and 4831 transitions. [2021-11-06 18:01:19,905 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) [2021-11-06 18:01:19,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4831 transitions. [2021-11-06 18:01:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-06 18:01:19,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:01:19,911 INFO L513 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] [2021-11-06 18:01:19,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:01:19,912 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)] === [2021-11-06 18:01:19,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:01:19,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1868839532, now seen corresponding path program 1 times [2021-11-06 18:01:19,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:01:19,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109287858] [2021-11-06 18:01:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:19,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:01:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:01:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 18:01:21,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:01:21,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109287858] [2021-11-06 18:01:21,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109287858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:01:21,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:01:21,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 18:01:21,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547371727] [2021-11-06 18:01:21,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:01:21,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:01:21,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:01:21,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:21,106 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) [2021-11-06 18:01:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:01:21,756 INFO L93 Difference]: Finished difference Result 6058 states and 8076 transitions. [2021-11-06 18:01:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:01:21,757 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 [2021-11-06 18:01:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:01:21,785 INFO L225 Difference]: With dead ends: 6058 [2021-11-06 18:01:21,785 INFO L226 Difference]: Without dead ends: 6038 [2021-11-06 18:01:21,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-11-06 18:01:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 6004. [2021-11-06 18:01:21,921 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) [2021-11-06 18:01:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 8002 transitions. [2021-11-06 18:01:21,942 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 8002 transitions. Word has length 62 [2021-11-06 18:01:21,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:01:21,943 INFO L470 AbstractCegarLoop]: Abstraction has 6004 states and 8002 transitions. [2021-11-06 18:01:21,943 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) [2021-11-06 18:01:21,943 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 8002 transitions. [2021-11-06 18:01:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 18:01:21,948 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:01:21,949 INFO L513 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] [2021-11-06 18:01:21,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:01:21,949 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)] === [2021-11-06 18:01:21,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:01:21,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1644296629, now seen corresponding path program 1 times [2021-11-06 18:01:21,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:01:21,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905836420] [2021-11-06 18:01:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:21,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:01:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:01:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 18:01:23,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:01:23,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905836420] [2021-11-06 18:01:23,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905836420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:01:23,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:01:23,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:01:23,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609390470] [2021-11-06 18:01:23,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:01:23,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:01:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:01:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:23,209 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) [2021-11-06 18:01:23,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:01:23,427 INFO L93 Difference]: Finished difference Result 12006 states and 16004 transitions. [2021-11-06 18:01:23,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:01:23,428 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 [2021-11-06 18:01:23,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:01:23,457 INFO L225 Difference]: With dead ends: 12006 [2021-11-06 18:01:23,457 INFO L226 Difference]: Without dead ends: 6006 [2021-11-06 18:01:23,468 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:23,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-11-06 18:01:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 6006. [2021-11-06 18:01:23,624 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) [2021-11-06 18:01:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 8004 transitions. [2021-11-06 18:01:23,648 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 8004 transitions. Word has length 82 [2021-11-06 18:01:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:01:23,650 INFO L470 AbstractCegarLoop]: Abstraction has 6006 states and 8004 transitions. [2021-11-06 18:01:23,650 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) [2021-11-06 18:01:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 8004 transitions. [2021-11-06 18:01:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 18:01:23,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:01:23,657 INFO L513 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] [2021-11-06 18:01:23,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:01:23,658 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)] === [2021-11-06 18:01:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:01:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2066998455, now seen corresponding path program 1 times [2021-11-06 18:01:23,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:01:23,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648449748] [2021-11-06 18:01:23,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:23,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:01:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:01:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 18:01:24,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:01:24,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648449748] [2021-11-06 18:01:24,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648449748] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:01:24,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:01:24,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:01:24,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402067793] [2021-11-06 18:01:24,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:01:24,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:01:24,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:01:24,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:24,796 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) [2021-11-06 18:01:25,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:01:25,015 INFO L93 Difference]: Finished difference Result 12010 states and 16008 transitions. [2021-11-06 18:01:25,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:01:25,018 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 [2021-11-06 18:01:25,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:01:25,043 INFO L225 Difference]: With dead ends: 12010 [2021-11-06 18:01:25,043 INFO L226 Difference]: Without dead ends: 6008 [2021-11-06 18:01:25,054 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-11-06 18:01:25,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 6008. [2021-11-06 18:01:25,194 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) [2021-11-06 18:01:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6008 states to 6008 states and 8006 transitions. [2021-11-06 18:01:25,221 INFO L78 Accepts]: Start accepts. Automaton has 6008 states and 8006 transitions. Word has length 82 [2021-11-06 18:01:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:01:25,221 INFO L470 AbstractCegarLoop]: Abstraction has 6008 states and 8006 transitions. [2021-11-06 18:01:25,223 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) [2021-11-06 18:01:25,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6008 states and 8006 transitions. [2021-11-06 18:01:25,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 18:01:25,228 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:01:25,229 INFO L513 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] [2021-11-06 18:01:25,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:01:25,229 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 18:01:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:01:25,230 INFO L85 PathProgramCache]: Analyzing trace with hash 478650553, now seen corresponding path program 1 times [2021-11-06 18:01:25,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:01:25,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876382303] [2021-11-06 18:01:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:25,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:01:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:01:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 18:01:30,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:01:30,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876382303] [2021-11-06 18:01:30,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876382303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:01:30,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:01:30,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:01:30,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093241153] [2021-11-06 18:01:30,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:01:30,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:01:30,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:01:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:30,253 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) [2021-11-06 18:01:30,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:01:30,764 INFO L93 Difference]: Finished difference Result 12026 states and 16036 transitions. [2021-11-06 18:01:30,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:01:30,765 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 [2021-11-06 18:01:30,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:01:30,805 INFO L225 Difference]: With dead ends: 12026 [2021-11-06 18:01:30,805 INFO L226 Difference]: Without dead ends: 6022 [2021-11-06 18:01:30,819 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:01:30,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-11-06 18:01:30,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 6022. [2021-11-06 18:01:30,965 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) [2021-11-06 18:01:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6022 states to 6022 states and 8020 transitions. [2021-11-06 18:01:30,980 INFO L78 Accepts]: Start accepts. Automaton has 6022 states and 8020 transitions. Word has length 82 [2021-11-06 18:01:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:01:30,982 INFO L470 AbstractCegarLoop]: Abstraction has 6022 states and 8020 transitions. [2021-11-06 18:01:30,982 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) [2021-11-06 18:01:30,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6022 states and 8020 transitions. [2021-11-06 18:01:30,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 18:01:30,990 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:01:30,990 INFO L513 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] [2021-11-06 18:01:30,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:01:30,990 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)] === [2021-11-06 18:01:30,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:01:30,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1698789473, now seen corresponding path program 1 times [2021-11-06 18:01:30,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:01:30,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20976145] [2021-11-06 18:01:30,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:30,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:01:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:01:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 18:01:34,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:01:34,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20976145] [2021-11-06 18:01:34,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20976145] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 18:01:34,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781299951] [2021-11-06 18:01:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:01:34,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:01:34,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:01:34,912 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) [2021-11-06 18:01:34,938 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