./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-32_7a-drivers--usb--gadget--libcomposite.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-32_7a-drivers--usb--gadget--libcomposite.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 367b4f63019d29c39ca623f3d4d0cb3290afe20355c38bfe319a1b34fe36216c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 18:48:34,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 18:48:34,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 18:48:34,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 18:48:34,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 18:48:34,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 18:48:34,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 18:48:34,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 18:48:34,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 18:48:34,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 18:48:34,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 18:48:34,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 18:48:34,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 18:48:34,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 18:48:34,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 18:48:34,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 18:48:34,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 18:48:34,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 18:48:34,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 18:48:34,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 18:48:34,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 18:48:34,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 18:48:34,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 18:48:34,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 18:48:34,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 18:48:34,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 18:48:34,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 18:48:34,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 18:48:34,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 18:48:34,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 18:48:34,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 18:48:34,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 18:48:34,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 18:48:34,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 18:48:34,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 18:48:34,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 18:48:34,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 18:48:34,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 18:48:34,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 18:48:34,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 18:48:34,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 18:48:34,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 18:48:34,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 18:48:34,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 18:48:34,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 18:48:34,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 18:48:34,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 18:48:34,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 18:48:34,478 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 18:48:34,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 18:48:34,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 18:48:34,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 18:48:34,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 18:48:34,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 18:48:34,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 18:48:34,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 18:48:34,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 18:48:34,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 18:48:34,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 18:48:34,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 18:48:34,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 18:48:34,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:48:34,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 18:48:34,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 18:48:34,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 18:48:34,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 18:48:34,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 18:48:34,481 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 18:48:34,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 18:48:34,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 18:48:34,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 18:48:34,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 367b4f63019d29c39ca623f3d4d0cb3290afe20355c38bfe319a1b34fe36216c [2021-11-05 18:48:34,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 18:48:34,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 18:48:34,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 18:48:34,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 18:48:34,770 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 18:48:34,772 INFO L432 ainManager$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-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-05 18:48:34,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6590eb72/528ae329cf7b4a019cb9a6535aa225e3/FLAG3ded3a3a6 [2021-11-05 18:48:35,566 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 18:48:35,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-05 18:48:35,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6590eb72/528ae329cf7b4a019cb9a6535aa225e3/FLAG3ded3a3a6 [2021-11-05 18:48:35,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6590eb72/528ae329cf7b4a019cb9a6535aa225e3 [2021-11-05 18:48:35,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 18:48:35,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 18:48:35,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 18:48:35,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 18:48:35,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 18:48:35,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:48:35" (1/1) ... [2021-11-05 18:48:35,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773fd451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:35, skipping insertion in model container [2021-11-05 18:48:35,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:48:35" (1/1) ... [2021-11-05 18:48:35,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 18:48:35,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 18:48:38,476 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-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[415639,415652] [2021-11-05 18:48:38,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:48:38,697 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 18:48:39,117 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-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[415639,415652] [2021-11-05 18:48:39,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:48:39,249 INFO L208 MainTranslator]: Completed translation [2021-11-05 18:48:39,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39 WrapperNode [2021-11-05 18:48:39,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 18:48:39,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 18:48:39,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 18:48:39,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 18:48:39,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:39,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:40,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 18:48:40,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 18:48:40,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 18:48:40,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 18:48:40,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:40,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:40,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:40,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:41,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:41,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:41,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:41,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 18:48:41,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 18:48:41,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 18:48:41,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 18:48:41,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (1/1) ... [2021-11-05 18:48:41,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:48:41,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:48:41,901 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 18:48:41,979 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 18:48:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function [2021-11-05 18:48:42,029 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function [2021-11-05 18:48:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2021-11-05 18:48:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2021-11-05 18:48:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_bind [2021-11-05 18:48:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_bind [2021-11-05 18:48:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_prepare [2021-11-05 18:48:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_prepare [2021-11-05 18:48:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure composite_unbind [2021-11-05 18:48:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_unbind [2021-11-05 18:48:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure composite_bind [2021-11-05 18:48:42,031 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_bind [2021-11-05 18:48:42,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 18:48:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure bos_desc [2021-11-05 18:48:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bos_desc [2021-11-05 18:48:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure composite_disconnect [2021-11-05 18:48:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_disconnect [2021-11-05 18:48:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_function [2021-11-05 18:48:42,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_function [2021-11-05 18:48:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 18:48:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 18:48:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 18:48:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure composite_resume [2021-11-05 18:48:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_resume [2021-11-05 18:48:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_unbind [2021-11-05 18:48:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_unbind [2021-11-05 18:48:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 18:48:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_dequeue [2021-11-05 18:48:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_dequeue [2021-11-05 18:48:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 18:48:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 18:48:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 18:48:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_cleanup [2021-11-05 18:48:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_cleanup [2021-11-05 18:48:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure composite_suspend [2021-11-05 18:48:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_suspend [2021-11-05 18:48:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure purge_configs_funcs [2021-11-05 18:48:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure purge_configs_funcs [2021-11-05 18:48:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 18:48:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 18:48:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function_instance [2021-11-05 18:48:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function_instance [2021-11-05 18:48:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 18:48:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 18:48:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure reset_config [2021-11-05 18:48:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_config [2021-11-05 18:48:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_function [2021-11-05 18:48:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_function [2021-11-05 18:48:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure __composite_unbind [2021-11-05 18:48:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __composite_unbind [2021-11-05 18:48:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 18:48:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 18:48:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_unlink [2021-11-05 18:48:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_unlink [2021-11-05 18:48:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 18:48:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure composite_setup [2021-11-05 18:48:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_setup [2021-11-05 18:48:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure set_config [2021-11-05 18:48:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config [2021-11-05 18:48:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_function [2021-11-05 18:48:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_function [2021-11-05 18:48:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 18:48:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-05 18:48:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-05 18:48:42,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 18:48:42,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 18:48:42,054 INFO L130 BoogieDeclarations]: Found specification of procedure remove_config [2021-11-05 18:48:42,054 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_config [2021-11-05 18:48:42,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 18:48:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 18:48:42,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-05 18:49:26,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 18:49:26,895 INFO L299 CfgBuilder]: Removed 8398 assume(true) statements. [2021-11-05 18:49:26,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:49:26 BoogieIcfgContainer [2021-11-05 18:49:26,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 18:49:26,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 18:49:26,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 18:49:26,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 18:49:26,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 06:48:35" (1/3) ... [2021-11-05 18:49:26,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76292417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:49:26, skipping insertion in model container [2021-11-05 18:49:26,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:48:39" (2/3) ... [2021-11-05 18:49:26,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76292417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:49:26, skipping insertion in model container [2021-11-05 18:49:26,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:49:26" (3/3) ... [2021-11-05 18:49:26,913 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-05 18:49:26,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 18:49:26,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 292 error locations. [2021-11-05 18:49:26,978 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 18:49:26,983 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 18:49:26,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 292 error locations. [2021-11-05 18:49:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 13059 states, 12637 states have (on average 1.4530347392577352) internal successors, (18362), 12943 states have internal predecessors, (18362), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 95 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-05 18:49:27,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-05 18:49:27,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:49:27,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:27,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-05 18:49:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:49:27,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1839370102, now seen corresponding path program 1 times [2021-11-05 18:49:27,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:49:27,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697681002] [2021-11-05 18:49:27,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:49:27,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:49:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:49:27,963 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 18:49:27,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:49:27,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697681002] [2021-11-05 18:49:27,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697681002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:49:27,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:49:27,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:49:27,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638322958] [2021-11-05 18:49:27,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:49:27,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 18:49:27,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:49:27,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 18:49:27,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 18:49:28,026 INFO L87 Difference]: Start difference. First operand has 13059 states, 12637 states have (on average 1.4530347392577352) internal successors, (18362), 12943 states have internal predecessors, (18362), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 95 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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 18:49:28,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:49:28,382 INFO L93 Difference]: Finished difference Result 26114 states and 37224 transitions. [2021-11-05 18:49:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 18:49:28,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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 398 [2021-11-05 18:49:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:49:28,453 INFO L225 Difference]: With dead ends: 26114 [2021-11-05 18:49:28,453 INFO L226 Difference]: Without dead ends: 13013 [2021-11-05 18:49:28,512 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 18:49:28,514 INFO L933 BasicCegarLoop]: 17947 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, 17947 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 18:49:28,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 17947 Invalid, 0 Unknown, 0 Unchecked, 27.98ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 18:49:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2021-11-05 18:49:28,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13013. [2021-11-05 18:49:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13013 states, 12592 states have (on average 1.4022395171537485) internal successors, (17657), 12897 states have internal predecessors, (17657), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 95 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-05 18:49:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13013 states to 13013 states and 17859 transitions. [2021-11-05 18:49:28,858 INFO L78 Accepts]: Start accepts. Automaton has 13013 states and 17859 transitions. Word has length 398 [2021-11-05 18:49:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:49:28,860 INFO L470 AbstractCegarLoop]: Abstraction has 13013 states and 17859 transitions. [2021-11-05 18:49:28,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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 18:49:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 13013 states and 17859 transitions. [2021-11-05 18:49:28,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-05 18:49:28,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:49:28,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:28,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 18:49:28,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-05 18:49:28,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:49:28,873 INFO L85 PathProgramCache]: Analyzing trace with hash 297886088, now seen corresponding path program 1 times [2021-11-05 18:49:28,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:49:28,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667201400] [2021-11-05 18:49:28,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:49:28,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:49:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:49:29,669 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 18:49:29,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:49:29,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667201400] [2021-11-05 18:49:29,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667201400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:49:29,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:49:29,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:49:29,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245258458] [2021-11-05 18:49:29,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:49:29,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:49:29,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:49:29,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:49:29,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:29,673 INFO L87 Difference]: Start difference. First operand 13013 states and 17859 transitions. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 18:49:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:49:30,252 INFO L93 Difference]: Finished difference Result 37459 states and 51681 transitions. [2021-11-05 18:49:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:49:30,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 398 [2021-11-05 18:49:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:49:30,349 INFO L225 Difference]: With dead ends: 37459 [2021-11-05 18:49:30,350 INFO L226 Difference]: Without dead ends: 24824 [2021-11-05 18:49:30,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:30,627 INFO L933 BasicCegarLoop]: 17985 mSDtfsCounter, 16768 mSDsluCounter, 17431 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16768 SdHoareTripleChecker+Valid, 35416 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.54ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 150.14ms IncrementalHoareTripleChecker+Time [2021-11-05 18:49:30,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16768 Valid, 35416 Invalid, 23 Unknown, 0 Unchecked, 58.54ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 150.14ms Time] [2021-11-05 18:49:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24824 states. [2021-11-05 18:49:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24824 to 24109. [2021-11-05 18:49:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24109 states, 23561 states have (on average 1.4161962565256143) internal successors, (33367), 23880 states have internal predecessors, (33367), 200 states have call successors, (200), 56 states have call predecessors, (200), 56 states have return successors, (200), 188 states have call predecessors, (200), 200 states have call successors, (200) [2021-11-05 18:49:31,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24109 states to 24109 states and 33767 transitions. [2021-11-05 18:49:31,154 INFO L78 Accepts]: Start accepts. Automaton has 24109 states and 33767 transitions. Word has length 398 [2021-11-05 18:49:31,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:49:31,156 INFO L470 AbstractCegarLoop]: Abstraction has 24109 states and 33767 transitions. [2021-11-05 18:49:31,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 18:49:31,156 INFO L276 IsEmpty]: Start isEmpty. Operand 24109 states and 33767 transitions. [2021-11-05 18:49:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-05 18:49:31,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:49:31,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:31,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 18:49:31,162 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting config_usb_cfg_unlinkErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-05 18:49:31,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:49:31,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1699315719, now seen corresponding path program 1 times [2021-11-05 18:49:31,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:49:31,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291516807] [2021-11-05 18:49:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:49:31,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:49:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:49:31,804 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 18:49:31,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:49:31,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291516807] [2021-11-05 18:49:31,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291516807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:49:31,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:49:31,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:49:31,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997692039] [2021-11-05 18:49:31,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:49:31,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:49:31,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:49:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:49:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:31,808 INFO L87 Difference]: Start difference. First operand 24109 states and 33767 transitions. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:49:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:49:32,519 INFO L93 Difference]: Finished difference Result 69805 states and 98103 transitions. [2021-11-05 18:49:32,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:49:32,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2021-11-05 18:49:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:49:32,637 INFO L225 Difference]: With dead ends: 69805 [2021-11-05 18:49:32,637 INFO L226 Difference]: Without dead ends: 46074 [2021-11-05 18:49:32,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:32,703 INFO L933 BasicCegarLoop]: 19040 mSDtfsCounter, 16618 mSDsluCounter, 17419 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16618 SdHoareTripleChecker+Valid, 36459 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.21ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149.14ms IncrementalHoareTripleChecker+Time [2021-11-05 18:49:32,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16618 Valid, 36459 Invalid, 35 Unknown, 0 Unchecked, 40.21ms Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 149.14ms Time] [2021-11-05 18:49:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46074 states. [2021-11-05 18:49:33,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46074 to 45380. [2021-11-05 18:49:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45380 states, 44588 states have (on average 1.4246209742531624) internal successors, (63521), 44935 states have internal predecessors, (63521), 388 states have call successors, (388), 112 states have call predecessors, (388), 112 states have return successors, (388), 364 states have call predecessors, (388), 388 states have call successors, (388) [2021-11-05 18:49:33,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45380 states to 45380 states and 64297 transitions. [2021-11-05 18:49:33,584 INFO L78 Accepts]: Start accepts. Automaton has 45380 states and 64297 transitions. Word has length 400 [2021-11-05 18:49:33,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:49:33,584 INFO L470 AbstractCegarLoop]: Abstraction has 45380 states and 64297 transitions. [2021-11-05 18:49:33,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:49:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 45380 states and 64297 transitions. [2021-11-05 18:49:33,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-05 18:49:33,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:49:33,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:33,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 18:49:33,591 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-05 18:49:33,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:49:33,592 INFO L85 PathProgramCache]: Analyzing trace with hash -653174918, now seen corresponding path program 1 times [2021-11-05 18:49:33,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:49:33,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891393227] [2021-11-05 18:49:33,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:49:33,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:49:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:49:34,410 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 18:49:34,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:49:34,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891393227] [2021-11-05 18:49:34,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891393227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:49:34,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:49:34,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:49:34,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134322487] [2021-11-05 18:49:34,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:49:34,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:49:34,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:49:34,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:49:34,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:34,413 INFO L87 Difference]: Start difference. First operand 45380 states and 64297 transitions. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 18:49:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:49:35,495 INFO L93 Difference]: Finished difference Result 132314 states and 187853 transitions. [2021-11-05 18:49:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:49:35,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 400 [2021-11-05 18:49:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:49:35,749 INFO L225 Difference]: With dead ends: 132314 [2021-11-05 18:49:35,750 INFO L226 Difference]: Without dead ends: 87312 [2021-11-05 18:49:35,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:35,864 INFO L933 BasicCegarLoop]: 20226 mSDtfsCounter, 16756 mSDsluCounter, 17431 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16756 SdHoareTripleChecker+Valid, 37657 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.83ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.53ms IncrementalHoareTripleChecker+Time [2021-11-05 18:49:35,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16756 Valid, 37657 Invalid, 23 Unknown, 0 Unchecked, 40.83ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 141.53ms Time] [2021-11-05 18:49:35,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87312 states. [2021-11-05 18:49:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87312 to 86588. [2021-11-05 18:49:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86588 states, 85304 states have (on average 1.4296281534277409) internal successors, (121953), 85707 states have internal predecessors, (121953), 768 states have call successors, (768), 224 states have call predecessors, (768), 224 states have return successors, (768), 720 states have call predecessors, (768), 768 states have call successors, (768) [2021-11-05 18:49:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86588 states to 86588 states and 123489 transitions. [2021-11-05 18:49:38,066 INFO L78 Accepts]: Start accepts. Automaton has 86588 states and 123489 transitions. Word has length 400 [2021-11-05 18:49:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:49:38,066 INFO L470 AbstractCegarLoop]: Abstraction has 86588 states and 123489 transitions. [2021-11-05 18:49:38,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 18:49:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 86588 states and 123489 transitions. [2021-11-05 18:49:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-05 18:49:38,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:49:38,072 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:38,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 18:49:38,072 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr140ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-05 18:49:38,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:49:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash -249054182, now seen corresponding path program 1 times [2021-11-05 18:49:38,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:49:38,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185346950] [2021-11-05 18:49:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:49:38,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:49:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:49:38,741 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 18:49:38,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:49:38,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185346950] [2021-11-05 18:49:38,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185346950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:49:38,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:49:38,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:49:38,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670824551] [2021-11-05 18:49:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:49:38,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:49:38,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:49:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:49:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:38,743 INFO L87 Difference]: Start difference. First operand 86588 states and 123489 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 18:49:40,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:49:40,639 INFO L93 Difference]: Finished difference Result 258537 states and 369049 transitions. [2021-11-05 18:49:40,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:49:40,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 404 [2021-11-05 18:49:40,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:49:41,167 INFO L225 Difference]: With dead ends: 258537 [2021-11-05 18:49:41,168 INFO L226 Difference]: Without dead ends: 172327 [2021-11-05 18:49:41,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:41,486 INFO L933 BasicCegarLoop]: 21306 mSDtfsCounter, 17684 mSDsluCounter, 17443 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17684 SdHoareTripleChecker+Valid, 38749 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 121.45ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.49ms IncrementalHoareTripleChecker+Time [2021-11-05 18:49:41,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17684 Valid, 38749 Invalid, 11 Unknown, 0 Unchecked, 121.45ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 162.49ms Time] [2021-11-05 18:49:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172327 states. [2021-11-05 18:49:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172327 to 171612. [2021-11-05 18:49:43,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171612 states, 169336 states have (on average 1.4318101289743468) internal successors, (242457), 169851 states have internal predecessors, (242457), 1536 states have call successors, (1536), 448 states have call predecessors, (1536), 448 states have return successors, (1536), 1440 states have call predecessors, (1536), 1536 states have call successors, (1536) [2021-11-05 18:49:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171612 states to 171612 states and 245529 transitions. [2021-11-05 18:49:44,835 INFO L78 Accepts]: Start accepts. Automaton has 171612 states and 245529 transitions. Word has length 404 [2021-11-05 18:49:44,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:49:44,836 INFO L470 AbstractCegarLoop]: Abstraction has 171612 states and 245529 transitions. [2021-11-05 18:49:44,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 18:49:44,836 INFO L276 IsEmpty]: Start isEmpty. Operand 171612 states and 245529 transitions. [2021-11-05 18:49:44,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-05 18:49:44,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:49:44,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:44,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 18:49:44,842 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr143ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-05 18:49:44,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:49:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1480406344, now seen corresponding path program 1 times [2021-11-05 18:49:44,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:49:44,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17596746] [2021-11-05 18:49:44,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:49:44,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:49:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:49:45,414 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 18:49:45,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:49:45,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17596746] [2021-11-05 18:49:45,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17596746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:49:45,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:49:45,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:49:45,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190549721] [2021-11-05 18:49:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:49:45,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:49:45,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:49:45,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:49:45,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:45,418 INFO L87 Difference]: Start difference. First operand 171612 states and 245529 transitions. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 18:49:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:49:49,100 INFO L93 Difference]: Finished difference Result 500503 states and 716910 transitions. [2021-11-05 18:49:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:49:49,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 407 [2021-11-05 18:49:49,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:49:49,862 INFO L225 Difference]: With dead ends: 500503 [2021-11-05 18:49:49,862 INFO L226 Difference]: Without dead ends: 329269 [2021-11-05 18:49:50,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:50,415 INFO L933 BasicCegarLoop]: 21370 mSDtfsCounter, 16508 mSDsluCounter, 17419 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 288.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16508 SdHoareTripleChecker+Valid, 38789 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.00ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 316.88ms IncrementalHoareTripleChecker+Time [2021-11-05 18:49:50,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16508 Valid, 38789 Invalid, 35 Unknown, 0 Unchecked, 28.00ms Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 316.88ms Time] [2021-11-05 18:49:50,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329269 states. [2021-11-05 18:49:55,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329269 to 328660. [2021-11-05 18:49:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328660 states, 324432 states have (on average 1.4342882329733195) internal successors, (465329), 325171 states have internal predecessors, (465329), 3040 states have call successors, (3040), 896 states have call predecessors, (3040), 896 states have return successors, (3040), 2848 states have call predecessors, (3040), 3040 states have call successors, (3040) [2021-11-05 18:49:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328660 states to 328660 states and 471409 transitions. [2021-11-05 18:49:56,764 INFO L78 Accepts]: Start accepts. Automaton has 328660 states and 471409 transitions. Word has length 407 [2021-11-05 18:49:56,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:49:56,765 INFO L470 AbstractCegarLoop]: Abstraction has 328660 states and 471409 transitions. [2021-11-05 18:49:56,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 18:49:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand 328660 states and 471409 transitions. [2021-11-05 18:49:56,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-05 18:49:56,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:49:56,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:56,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 18:49:56,772 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr262ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-05 18:49:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:49:56,773 INFO L85 PathProgramCache]: Analyzing trace with hash -201877315, now seen corresponding path program 1 times [2021-11-05 18:49:56,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:49:56,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002320276] [2021-11-05 18:49:56,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:49:56,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:49:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:49:57,310 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 18:49:57,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:49:57,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002320276] [2021-11-05 18:49:57,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002320276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:49:57,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:49:57,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:49:57,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662104918] [2021-11-05 18:49:57,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:49:57,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:49:57,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:49:57,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:49:57,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:49:57,315 INFO L87 Difference]: Start difference. First operand 328660 states and 471409 transitions. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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 18:49:59,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []