/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:34:38,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:34:38,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:34:38,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:34:38,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:34:38,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:34:38,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:34:38,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:34:38,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:34:38,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:34:38,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:34:38,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:34:38,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:34:38,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:34:38,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:34:38,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:34:38,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:34:38,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:34:38,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:34:38,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:34:38,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:34:38,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:34:38,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:34:38,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:34:38,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:34:38,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:34:38,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:34:38,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:34:38,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:34:38,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:34:38,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:34:38,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:34:38,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:34:38,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:34:38,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:34:38,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:34:38,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:34:38,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:34:38,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:34:38,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:34:38,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:34:38,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:34:38,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:34:38,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:34:38,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:34:38,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:34:38,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:34:38,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:34:38,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:34:38,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:34:38,316 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:34:38,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:34:38,317 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:34:38,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:34:38,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:34:38,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:34:38,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:34:38,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:34:38,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:34:38,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:34:38,320 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:34:38,320 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:34:38,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:34:38,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:34:38,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:34:38,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:34:38,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:34:38,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:34:38,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:34:38,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:34:38,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:34:38,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:34:38,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:34:38,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:34:38,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:34:38,325 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:34:38,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:34:38,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:34:38,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:34:38,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:34:38,850 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:34:38,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:38,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e71e5dc/7f96dafb07bb4456be76717bbfeef5bf/FLAG07b7a4e13 [2022-10-15 21:34:39,978 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:34:39,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:40,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e71e5dc/7f96dafb07bb4456be76717bbfeef5bf/FLAG07b7a4e13 [2022-10-15 21:34:40,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e71e5dc/7f96dafb07bb4456be76717bbfeef5bf [2022-10-15 21:34:40,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:34:40,401 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:34:40,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:34:40,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:34:40,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:34:40,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:34:40" (1/1) ... [2022-10-15 21:34:40,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2ccbfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:40, skipping insertion in model container [2022-10-15 21:34:40,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:34:40" (1/1) ... [2022-10-15 21:34:40,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:34:40,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:34:41,844 WARN L230 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-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2022-10-15 21:34:41,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:34:41,939 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:34:42,229 WARN L230 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-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2022-10-15 21:34:42,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:34:42,444 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:34:42,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42 WrapperNode [2022-10-15 21:34:42,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:34:42,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:34:42,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:34:42,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:34:42,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:42,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:42,802 INFO L138 Inliner]: procedures = 189, calls = 1290, calls flagged for inlining = 74, calls inlined = 74, statements flattened = 3369 [2022-10-15 21:34:42,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:34:42,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:34:42,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:34:42,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:34:42,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:42,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:42,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:42,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:42,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:43,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:43,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:43,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:43,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:34:43,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:34:43,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:34:43,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:34:43,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (1/1) ... [2022-10-15 21:34:43,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:34:43,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:34:43,187 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) [2022-10-15 21:34:43,213 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 [2022-10-15 21:34:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-10-15 21:34:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-10-15 21:34:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-15 21:34:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-15 21:34:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-10-15 21:34:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-10-15 21:34:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-15 21:34:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-15 21:34:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:34:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:34:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:34:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:34:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:34:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:34:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-15 21:34:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-15 21:34:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-10-15 21:34:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-10-15 21:34:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-10-15 21:34:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-10-15 21:34:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:34:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:34:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-10-15 21:34:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-10-15 21:34:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-10-15 21:34:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-10-15 21:34:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:34:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:34:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:34:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:34:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-10-15 21:34:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-10-15 21:34:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-10-15 21:34:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-10-15 21:34:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-15 21:34:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-15 21:34:43,271 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-10-15 21:34:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-10-15 21:34:43,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-10-15 21:34:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-10-15 21:34:43,271 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-10-15 21:34:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-10-15 21:34:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:34:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:34:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:34:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:34:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:34:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-10-15 21:34:43,273 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-10-15 21:34:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-10-15 21:34:43,273 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-10-15 21:34:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-10-15 21:34:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-10-15 21:34:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:34:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:34:43,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:34:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:34:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-10-15 21:34:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-10-15 21:34:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-15 21:34:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-15 21:34:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:34:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:34:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-10-15 21:34:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-10-15 21:34:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:34:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-10-15 21:34:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-10-15 21:34:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-10-15 21:34:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-15 21:34:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-15 21:34:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:34:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:34:43,280 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-10-15 21:34:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-10-15 21:34:43,280 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:34:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:34:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:34:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-10-15 21:34:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-10-15 21:34:43,282 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-10-15 21:34:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-10-15 21:34:43,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 21:34:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 21:34:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:34:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:34:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:34:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:34:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:34:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-10-15 21:34:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-10-15 21:34:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-10-15 21:34:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-10-15 21:34:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:34:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-10-15 21:34:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-10-15 21:34:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-10-15 21:34:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-10-15 21:34:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-15 21:34:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-15 21:34:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-15 21:34:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-15 21:34:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-15 21:34:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-15 21:34:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-15 21:34:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-15 21:34:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:34:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:34:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-15 21:34:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-15 21:34:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-10-15 21:34:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-10-15 21:34:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:34:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:34:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:34:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:34:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-15 21:34:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-15 21:34:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:34:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:34:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-10-15 21:34:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-10-15 21:34:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-15 21:34:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-15 21:34:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-10-15 21:34:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-10-15 21:34:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:34:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:34:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:34:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:34:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-10-15 21:34:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-10-15 21:34:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-10-15 21:34:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-10-15 21:34:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:34:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:34:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:34:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:34:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-10-15 21:34:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-10-15 21:34:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-15 21:34:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-15 21:34:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-10-15 21:34:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-10-15 21:34:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:34:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-15 21:34:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-15 21:34:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:34:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-15 21:34:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-15 21:34:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:34:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:34:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:34:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:34:44,207 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:34:44,212 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:34:44,534 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:35:05,333 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:35:05,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:35:05,353 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:35:05,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:35:05 BoogieIcfgContainer [2022-10-15 21:35:05,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:35:05,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:35:05,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:35:05,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:35:05,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:34:40" (1/3) ... [2022-10-15 21:35:05,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aeb412f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:35:05, skipping insertion in model container [2022-10-15 21:35:05,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:42" (2/3) ... [2022-10-15 21:35:05,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aeb412f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:35:05, skipping insertion in model container [2022-10-15 21:35:05,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:35:05" (3/3) ... [2022-10-15 21:35:05,370 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:35:05,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:35:05,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-15 21:35:05,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:35:05,522 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@579ba01e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:35:05,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-10-15 21:35:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 1326 states, 911 states have (on average 1.4105378704720088) internal successors, (1285), 977 states have internal predecessors, (1285), 323 states have call successors, (323), 68 states have call predecessors, (323), 67 states have return successors, (318), 315 states have call predecessors, (318), 318 states have call successors, (318) [2022-10-15 21:35:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-10-15 21:35:05,561 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:05,563 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:35:05,564 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting printer_setupErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [printer_setupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 21:35:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash -111478544, now seen corresponding path program 1 times [2022-10-15 21:35:05,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:05,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603867190] [2022-10-15 21:35:05,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:05,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:35:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:35:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 21:35:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 21:35:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:35:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-15 21:35:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-15 21:35:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-15 21:35:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-15 21:35:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:07,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-10-15 21:35:07,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:07,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603867190] [2022-10-15 21:35:07,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603867190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:07,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:07,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:35:07,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582163447] [2022-10-15 21:35:07,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:07,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:35:07,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:07,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:35:07,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:35:07,123 INFO L87 Difference]: Start difference. First operand has 1326 states, 911 states have (on average 1.4105378704720088) internal successors, (1285), 977 states have internal predecessors, (1285), 323 states have call successors, (323), 68 states have call predecessors, (323), 67 states have return successors, (318), 315 states have call predecessors, (318), 318 states have call successors, (318) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:35:09,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:11,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:35:19,954 INFO L93 Difference]: Finished difference Result 3124 states and 4738 transitions. [2022-10-15 21:35:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:35:19,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 181 [2022-10-15 21:35:19,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:35:20,025 INFO L225 Difference]: With dead ends: 3124 [2022-10-15 21:35:20,026 INFO L226 Difference]: Without dead ends: 1757 [2022-10-15 21:35:20,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:35:20,055 INFO L413 NwaCegarLoop]: 1750 mSDtfsCounter, 1668 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 1407 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1407 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:35:20,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 4126 Invalid, 3130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1407 Valid, 1721 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-10-15 21:35:20,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-10-15 21:35:20,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1274. [2022-10-15 21:35:20,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 891 states have (on average 1.3557800224466892) internal successors, (1208), 932 states have internal predecessors, (1208), 299 states have call successors, (299), 66 states have call predecessors, (299), 66 states have return successors, (299), 296 states have call predecessors, (299), 299 states have call successors, (299) [2022-10-15 21:35:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1806 transitions. [2022-10-15 21:35:20,338 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1806 transitions. Word has length 181 [2022-10-15 21:35:20,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:35:20,342 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 1806 transitions. [2022-10-15 21:35:20,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:35:20,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1806 transitions. [2022-10-15 21:35:20,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-10-15 21:35:20,362 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:20,363 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:35:20,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:35:20,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting printer_setupErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [printer_setupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printer_setupErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 21:35:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -863389084, now seen corresponding path program 1 times [2022-10-15 21:35:20,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:20,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324837076] [2022-10-15 21:35:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:20,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:35:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:35:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 21:35:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 21:35:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:35:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-15 21:35:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-15 21:35:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-15 21:35:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-15 21:35:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-10-15 21:35:21,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:21,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324837076] [2022-10-15 21:35:21,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324837076] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:21,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:21,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:35:21,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034054299] [2022-10-15 21:35:21,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:21,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:35:21,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:21,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:35:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:35:21,346 INFO L87 Difference]: Start difference. First operand 1274 states and 1806 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-15 21:35:23,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:25,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:27,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []