/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:12:26,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:12:26,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:12:26,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:12:26,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:12:26,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:12:26,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:12:26,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:12:26,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:12:26,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:12:26,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:12:26,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:12:26,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:12:26,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:12:26,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:12:26,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:12:26,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:12:26,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:12:26,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:12:26,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:12:26,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:12:26,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:12:26,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:12:26,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:12:26,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:12:26,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:12:26,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:12:26,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:12:26,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:12:26,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:12:26,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:12:26,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:12:26,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:12:26,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:12:26,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:12:26,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:12:26,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:12:26,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:12:26,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:12:26,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:12:26,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:12:26,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:12:26,239 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:12:26,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:12:26,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:12:26,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:12:26,246 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:12:26,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:12:26,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:12:26,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:12:26,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:12:26,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:12:26,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:12:26,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:12:26,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:12:26,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:12:26,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:12:26,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:12:26,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:12:26,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:12:26,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:12:26,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:12:26,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:12:26,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:12:26,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:12:26,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:12:26,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:12:26,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:12:26,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:12:26,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:12:26,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:12:26,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:12:26,683 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:12:26,684 INFO L432 ainManager$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-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2020-12-22 14:12:26,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd7510d2/fc25ef13d6b3492b8fe180cc96412a45/FLAG9a9f50737 [2020-12-22 14:12:27,984 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:12:27,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2020-12-22 14:12:28,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd7510d2/fc25ef13d6b3492b8fe180cc96412a45/FLAG9a9f50737 [2020-12-22 14:12:28,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd7510d2/fc25ef13d6b3492b8fe180cc96412a45 [2020-12-22 14:12:28,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:12:28,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:12:28,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:12:28,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:12:28,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:12:28,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:12:28" (1/1) ... [2020-12-22 14:12:28,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6ea54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:28, skipping insertion in model container [2020-12-22 14:12:28,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:12:28" (1/1) ... [2020-12-22 14:12:28,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:12:28,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:12:31,912 WARN L226 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-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[398836,398849] [2020-12-22 14:12:31,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:12:32,038 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:12:32,651 WARN L226 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-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[398836,398849] [2020-12-22 14:12:32,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:12:33,695 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:12:33,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33 WrapperNode [2020-12-22 14:12:33,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:12:33,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:12:33,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:12:33,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:12:33,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:33,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:35,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:12:35,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:12:35,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:12:35,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:12:35,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:35,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:35,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:35,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:36,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:37,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:37,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... [2020-12-22 14:12:37,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:12:37,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:12:37,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:12:37,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:12:37,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:12:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function [2020-12-22 14:12:38,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function [2020-12-22 14:12:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2020-12-22 14:12:38,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2020-12-22 14:12:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_bind [2020-12-22 14:12:38,041 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_bind [2020-12-22 14:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_prepare [2020-12-22 14:12:38,042 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_prepare [2020-12-22 14:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure composite_unbind [2020-12-22 14:12:38,043 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_unbind [2020-12-22 14:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure composite_bind [2020-12-22 14:12:38,044 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_bind [2020-12-22 14:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure bos_desc [2020-12-22 14:12:38,045 INFO L138 BoogieDeclarations]: Found implementation of procedure bos_desc [2020-12-22 14:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure composite_disconnect [2020-12-22 14:12:38,045 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_disconnect [2020-12-22 14:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_function [2020-12-22 14:12:38,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_function [2020-12-22 14:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure composite_resume [2020-12-22 14:12:38,046 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_resume [2020-12-22 14:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_unbind [2020-12-22 14:12:38,047 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_unbind [2020-12-22 14:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_dequeue [2020-12-22 14:12:38,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_dequeue [2020-12-22 14:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:12:38,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_cleanup [2020-12-22 14:12:38,048 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_cleanup [2020-12-22 14:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure composite_suspend [2020-12-22 14:12:38,048 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_suspend [2020-12-22 14:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure purge_configs_funcs [2020-12-22 14:12:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure purge_configs_funcs [2020-12-22 14:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:12:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function_instance [2020-12-22 14:12:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function_instance [2020-12-22 14:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure reset_config [2020-12-22 14:12:38,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_config [2020-12-22 14:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_function [2020-12-22 14:12:38,050 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_function [2020-12-22 14:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure __composite_unbind [2020-12-22 14:12:38,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __composite_unbind [2020-12-22 14:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_unlink [2020-12-22 14:12:38,052 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_unlink [2020-12-22 14:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure composite_setup [2020-12-22 14:12:38,052 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_setup [2020-12-22 14:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_config [2020-12-22 14:12:38,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config [2020-12-22 14:12:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_function [2020-12-22 14:12:38,053 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_function [2020-12-22 14:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2020-12-22 14:12:38,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2020-12-22 14:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 14:12:38,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 14:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure remove_config [2020-12-22 14:12:38,055 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_config [2020-12-22 14:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:12:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 14:12:38,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 14:13:44,271 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:13:44,272 INFO L299 CfgBuilder]: Removed 6704 assume(true) statements. [2020-12-22 14:13:44,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:13:44 BoogieIcfgContainer [2020-12-22 14:13:44,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:13:44,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:13:44,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:13:44,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:13:44,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:12:28" (1/3) ... [2020-12-22 14:13:44,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410ad77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:13:44, skipping insertion in model container [2020-12-22 14:13:44,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:12:33" (2/3) ... [2020-12-22 14:13:44,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410ad77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:13:44, skipping insertion in model container [2020-12-22 14:13:44,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:13:44" (3/3) ... [2020-12-22 14:13:44,294 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2020-12-22 14:13:44,301 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:13:44,311 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-22 14:13:44,329 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-22 14:13:44,387 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:13:44,387 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:13:44,388 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:13:44,388 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:13:44,388 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:13:44,388 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:13:44,388 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:13:44,388 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:13:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 11653 states. [2020-12-22 14:13:44,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2020-12-22 14:13:44,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:13:44,595 INFO L422 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] [2020-12-22 14:13:44,596 INFO L429 AbstractCegarLoop]: === Iteration 1 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:13:44,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:13:44,603 INFO L82 PathProgramCache]: Analyzing trace with hash 825958261, now seen corresponding path program 1 times [2020-12-22 14:13:44,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:13:44,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666853012] [2020-12-22 14:13:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:13:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:13:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:13:46,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666853012] [2020-12-22 14:13:46,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:13:46,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:13:46,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523511063] [2020-12-22 14:13:46,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:13:46,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:13:46,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:13:46,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:13:46,591 INFO L87 Difference]: Start difference. First operand 11653 states. Second operand 2 states. [2020-12-22 14:13:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:13:47,246 INFO L93 Difference]: Finished difference Result 23302 states and 33866 transitions. [2020-12-22 14:13:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:13:47,248 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 408 [2020-12-22 14:13:47,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:13:47,345 INFO L225 Difference]: With dead ends: 23302 [2020-12-22 14:13:47,345 INFO L226 Difference]: Without dead ends: 11607 [2020-12-22 14:13:47,388 INFO L677 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 [2020-12-22 14:13:47,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2020-12-22 14:13:47,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 11607. [2020-12-22 14:13:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11607 states. [2020-12-22 14:13:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11607 states to 11607 states and 16466 transitions. [2020-12-22 14:13:47,847 INFO L78 Accepts]: Start accepts. Automaton has 11607 states and 16466 transitions. Word has length 408 [2020-12-22 14:13:47,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:13:47,850 INFO L481 AbstractCegarLoop]: Abstraction has 11607 states and 16466 transitions. [2020-12-22 14:13:47,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:13:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 11607 states and 16466 transitions. [2020-12-22 14:13:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2020-12-22 14:13:47,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:13:47,879 INFO L422 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] [2020-12-22 14:13:47,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:13:47,881 INFO L429 AbstractCegarLoop]: === Iteration 2 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:13:47,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:13:47,888 INFO L82 PathProgramCache]: Analyzing trace with hash 410093809, now seen corresponding path program 1 times [2020-12-22 14:13:47,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:13:47,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403049357] [2020-12-22 14:13:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:13:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:13:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:13:50,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403049357] [2020-12-22 14:13:50,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:13:50,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:13:50,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950812190] [2020-12-22 14:13:50,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:13:50,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:13:50,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:13:50,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:13:50,286 INFO L87 Difference]: Start difference. First operand 11607 states and 16466 transitions. Second operand 3 states. [2020-12-22 14:13:53,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:13:53,336 INFO L93 Difference]: Finished difference Result 33836 states and 48354 transitions. [2020-12-22 14:13:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:13:53,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 408 [2020-12-22 14:13:53,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:13:53,474 INFO L225 Difference]: With dead ends: 33836 [2020-12-22 14:13:53,474 INFO L226 Difference]: Without dead ends: 22607 [2020-12-22 14:13:53,503 INFO L677 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 [2020-12-22 14:13:53,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22607 states. [2020-12-22 14:13:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22607 to 22597. [2020-12-22 14:13:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22597 states. [2020-12-22 14:13:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22597 states to 22597 states and 32287 transitions. [2020-12-22 14:13:54,264 INFO L78 Accepts]: Start accepts. Automaton has 22597 states and 32287 transitions. Word has length 408 [2020-12-22 14:13:54,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:13:54,270 INFO L481 AbstractCegarLoop]: Abstraction has 22597 states and 32287 transitions. [2020-12-22 14:13:54,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:13:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 22597 states and 32287 transitions. [2020-12-22 14:13:54,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-12-22 14:13:54,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:13:54,292 INFO L422 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, 1, 1, 1, 1] [2020-12-22 14:13:54,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:13:54,293 INFO L429 AbstractCegarLoop]: === Iteration 3 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:13:54,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:13:54,295 INFO L82 PathProgramCache]: Analyzing trace with hash 996174208, now seen corresponding path program 1 times [2020-12-22 14:13:54,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:13:54,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910809897] [2020-12-22 14:13:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:13:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:13:56,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:13:56,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910809897] [2020-12-22 14:13:56,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:13:56,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:13:56,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104557342] [2020-12-22 14:13:56,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:13:56,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:13:56,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:13:56,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:13:56,731 INFO L87 Difference]: Start difference. First operand 22597 states and 32287 transitions. Second operand 3 states. [2020-12-22 14:13:57,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:13:57,687 INFO L93 Difference]: Finished difference Result 67023 states and 96440 transitions. [2020-12-22 14:13:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:13:57,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 412 [2020-12-22 14:13:57,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:13:57,832 INFO L225 Difference]: With dead ends: 67023 [2020-12-22 14:13:57,833 INFO L226 Difference]: Without dead ends: 44802 [2020-12-22 14:13:57,908 INFO L677 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 [2020-12-22 14:13:57,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44802 states. [2020-12-22 14:13:58,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44802 to 44787. [2020-12-22 14:13:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44787 states. [2020-12-22 14:13:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44787 states to 44787 states and 64334 transitions. [2020-12-22 14:13:59,375 INFO L78 Accepts]: Start accepts. Automaton has 44787 states and 64334 transitions. Word has length 412 [2020-12-22 14:13:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:13:59,376 INFO L481 AbstractCegarLoop]: Abstraction has 44787 states and 64334 transitions. [2020-12-22 14:13:59,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:13:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 44787 states and 64334 transitions. [2020-12-22 14:13:59,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2020-12-22 14:13:59,408 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:13:59,408 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:13:59,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:13:59,409 INFO L429 AbstractCegarLoop]: === Iteration 4 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:13:59,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:13:59,410 INFO L82 PathProgramCache]: Analyzing trace with hash -961428972, now seen corresponding path program 1 times [2020-12-22 14:13:59,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:13:59,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636864958] [2020-12-22 14:13:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:14:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2020-12-22 14:14:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:00,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-12-22 14:14:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:01,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-12-22 14:14:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:01,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-12-22 14:14:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:01,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:14:01,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636864958] [2020-12-22 14:14:01,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493130477] [2020-12-22 14:14:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:14:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:05,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 11048 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 14:14:05,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:14:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 14:14:06,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:14:06,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 14:14:06,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981513375] [2020-12-22 14:14:06,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:14:06,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:14:06,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:14:06,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:14:06,245 INFO L87 Difference]: Start difference. First operand 44787 states and 64334 transitions. Second operand 3 states. [2020-12-22 14:14:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:14:08,244 INFO L93 Difference]: Finished difference Result 133409 states and 191918 transitions. [2020-12-22 14:14:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:14:08,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 448 [2020-12-22 14:14:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:14:08,769 INFO L225 Difference]: With dead ends: 133409 [2020-12-22 14:14:08,770 INFO L226 Difference]: Without dead ends: 89000 [2020-12-22 14:14:08,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:14:08,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89000 states. [2020-12-22 14:14:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89000 to 88641. [2020-12-22 14:14:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88641 states. [2020-12-22 14:14:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88641 states to 88641 states and 127594 transitions. [2020-12-22 14:14:11,609 INFO L78 Accepts]: Start accepts. Automaton has 88641 states and 127594 transitions. Word has length 448 [2020-12-22 14:14:11,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:14:11,611 INFO L481 AbstractCegarLoop]: Abstraction has 88641 states and 127594 transitions. [2020-12-22 14:14:11,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:14:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 88641 states and 127594 transitions. [2020-12-22 14:14:11,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-12-22 14:14:11,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:14:11,638 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:14:11,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:14:11,852 INFO L429 AbstractCegarLoop]: === Iteration 5 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:14:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:14:11,854 INFO L82 PathProgramCache]: Analyzing trace with hash -73138202, now seen corresponding path program 1 times [2020-12-22 14:14:11,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:14:11,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375872843] [2020-12-22 14:14:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:14:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:14:13,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375872843] [2020-12-22 14:14:13,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:14:13,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:14:13,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681224968] [2020-12-22 14:14:13,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:14:13,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:14:13,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:14:13,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:14:13,632 INFO L87 Difference]: Start difference. First operand 88641 states and 127594 transitions. Second operand 3 states. [2020-12-22 14:14:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:14:16,395 INFO L93 Difference]: Finished difference Result 259399 states and 373856 transitions. [2020-12-22 14:14:16,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:14:16,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 426 [2020-12-22 14:14:16,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:14:17,039 INFO L225 Difference]: With dead ends: 259399 [2020-12-22 14:14:17,040 INFO L226 Difference]: Without dead ends: 171136 [2020-12-22 14:14:17,203 INFO L677 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 [2020-12-22 14:14:17,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171136 states. [2020-12-22 14:14:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171136 to 170757. [2020-12-22 14:14:21,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170757 states. [2020-12-22 14:14:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170757 states to 170757 states and 246288 transitions. [2020-12-22 14:14:21,426 INFO L78 Accepts]: Start accepts. Automaton has 170757 states and 246288 transitions. Word has length 426 [2020-12-22 14:14:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:14:21,427 INFO L481 AbstractCegarLoop]: Abstraction has 170757 states and 246288 transitions. [2020-12-22 14:14:21,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:14:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 170757 states and 246288 transitions. [2020-12-22 14:14:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2020-12-22 14:14:21,453 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:14:21,454 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:14:21,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:14:21,454 INFO L429 AbstractCegarLoop]: === Iteration 6 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:14:21,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:14:21,455 INFO L82 PathProgramCache]: Analyzing trace with hash -159784395, now seen corresponding path program 1 times [2020-12-22 14:14:21,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:14:21,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284920180] [2020-12-22 14:14:21,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:14:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:14:23,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284920180] [2020-12-22 14:14:23,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:14:23,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:14:23,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835358280] [2020-12-22 14:14:23,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:14:23,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:14:23,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:14:23,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:14:23,279 INFO L87 Difference]: Start difference. First operand 170757 states and 246288 transitions. Second operand 3 states. [2020-12-22 14:14:28,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:14:28,016 INFO L93 Difference]: Finished difference Result 509519 states and 735472 transitions. [2020-12-22 14:14:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:14:28,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 428 [2020-12-22 14:14:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:14:29,223 INFO L225 Difference]: With dead ends: 509519 [2020-12-22 14:14:29,223 INFO L226 Difference]: Without dead ends: 339140 [2020-12-22 14:14:29,460 INFO L677 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 [2020-12-22 14:14:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339140 states. [2020-12-22 14:14:35,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339140 to 338981. [2020-12-22 14:14:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338981 states. [2020-12-22 14:14:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338981 states to 338981 states and 489420 transitions. [2020-12-22 14:14:37,228 INFO L78 Accepts]: Start accepts. Automaton has 338981 states and 489420 transitions. Word has length 428 [2020-12-22 14:14:37,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:14:37,229 INFO L481 AbstractCegarLoop]: Abstraction has 338981 states and 489420 transitions. [2020-12-22 14:14:37,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:14:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 338981 states and 489420 transitions. [2020-12-22 14:14:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2020-12-22 14:14:37,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:14:37,249 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:14:37,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:14:37,249 INFO L429 AbstractCegarLoop]: === Iteration 7 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:14:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:14:37,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1818994805, now seen corresponding path program 1 times [2020-12-22 14:14:37,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:14:37,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159175795] [2020-12-22 14:14:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:14:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:38,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-12-22 14:14:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:39,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:14:39,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159175795] [2020-12-22 14:14:39,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157969790] [2020-12-22 14:14:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:14:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:14:43,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 11216 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 14:14:43,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:14:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 14:14:44,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:14:44,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 14:14:44,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893390735] [2020-12-22 14:14:44,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:14:44,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:14:44,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:14:44,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:14:44,135 INFO L87 Difference]: Start difference. First operand 338981 states and 489420 transitions. Second operand 3 states. [2020-12-22 14:14:52,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:14:52,504 INFO L93 Difference]: Finished difference Result 996453 states and 1439744 transitions. [2020-12-22 14:14:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:14:52,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 448 [2020-12-22 14:14:52,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:14:55,459 INFO L225 Difference]: With dead ends: 996453 [2020-12-22 14:14:55,459 INFO L226 Difference]: Without dead ends: 657850 [2020-12-22 14:14:56,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:14:57,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657850 states. [2020-12-22 14:15:12,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657850 to 657445. [2020-12-22 14:15:12,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657445 states. [2020-12-22 14:15:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657445 states to 657445 states and 950140 transitions. [2020-12-22 14:15:14,967 INFO L78 Accepts]: Start accepts. Automaton has 657445 states and 950140 transitions. Word has length 448 [2020-12-22 14:15:14,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:14,968 INFO L481 AbstractCegarLoop]: Abstraction has 657445 states and 950140 transitions. [2020-12-22 14:15:14,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:14,968 INFO L276 IsEmpty]: Start isEmpty. Operand 657445 states and 950140 transitions. [2020-12-22 14:15:14,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-12-22 14:15:14,983 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:14,984 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:15:15,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:15:15,198 INFO L429 AbstractCegarLoop]: === Iteration 8 === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:15,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:15,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1955089488, now seen corresponding path program 1 times [2020-12-22 14:15:15,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:15,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309438016] [2020-12-22 14:15:15,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:16,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2020-12-22 14:15:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:15:17,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309438016] [2020-12-22 14:15:17,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879721576] [2020-12-22 14:15:17,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:15:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:21,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 11239 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 14:15:21,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:15:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 14:15:22,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:15:22,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 14:15:22,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492581187] [2020-12-22 14:15:22,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:22,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:22,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:22,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:15:22,247 INFO L87 Difference]: Start difference. First operand 657445 states and 950140 transitions. Second operand 3 states.