/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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:13:07,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:13:07,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:13:07,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:13:07,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:13:07,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:13:07,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:13:07,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:13:07,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:13:07,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:13:07,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:13:07,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:13:07,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:13:07,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:13:07,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:13:07,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:13:07,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:13:07,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:13:07,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:13:07,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:13:07,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:13:07,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:13:07,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:13:07,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:13:07,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:13:07,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:13:07,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:13:07,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:13:07,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:13:07,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:13:07,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:13:07,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:13:07,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:13:07,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:13:07,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:13:07,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:13:07,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:13:07,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:13:07,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:13:07,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:13:07,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:13:07,347 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 21:13:07,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:13:07,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:13:07,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:13:07,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:13:07,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:13:07,377 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:13:07,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:13:07,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:13:07,378 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:13:07,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:13:07,379 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:13:07,379 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:13:07,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:13:07,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:13:07,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:13:07,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:13:07,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:13:07,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:13:07,381 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:13:07,381 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:13:07,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:13:07,382 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:13:07,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:13:07,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:13:07,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:13:07,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:13:07,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:07,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:13:07,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:13:07,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:13:07,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:13:07,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:13:07,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:13:07,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:13:07,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:13:07,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:13:07,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:13:07,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:13:07,788 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:13:07,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-10-15 21:13:07,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc879d76a/0b66a1a6a3c447a9b392c3808718937e/FLAG49e102aea [2022-10-15 21:13:09,172 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:13:09,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-10-15 21:13:09,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc879d76a/0b66a1a6a3c447a9b392c3808718937e/FLAG49e102aea [2022-10-15 21:13:09,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc879d76a/0b66a1a6a3c447a9b392c3808718937e [2022-10-15 21:13:09,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:13:09,279 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:13:09,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:09,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:13:09,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:13:09,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:09" (1/1) ... [2022-10-15 21:13:09,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca27bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:09, skipping insertion in model container [2022-10-15 21:13:09,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:09" (1/1) ... [2022-10-15 21:13:09,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:13:09,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:13:10,636 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2022-10-15 21:13:11,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:11,358 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:13:11,632 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2022-10-15 21:13:11,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:12,164 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:13:12,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12 WrapperNode [2022-10-15 21:13:12,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:12,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:12,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:13:12,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:13:12,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,542 INFO L138 Inliner]: procedures = 245, calls = 3306, calls flagged for inlining = 118, calls inlined = 118, statements flattened = 6515 [2022-10-15 21:13:12,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:12,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:13:12,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:13:12,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:13:12,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:12,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:13,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:13,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:13:13,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:13:13,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:13:13,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:13:13,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (1/1) ... [2022-10-15 21:13:13,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:13,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:13,121 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 21:13:13,136 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 21:13:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-10-15 21:13:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-10-15 21:13:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-10-15 21:13:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-10-15 21:13:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2022-10-15 21:13:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2022-10-15 21:13:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:13:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:13:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:13:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:13:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2022-10-15 21:13:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2022-10-15 21:13:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-10-15 21:13:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-10-15 21:13:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-15 21:13:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-15 21:13:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2022-10-15 21:13:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2022-10-15 21:13:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-10-15 21:13:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-10-15 21:13:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:13:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:13:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-10-15 21:13:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-10-15 21:13:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-15 21:13:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-15 21:13:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-10-15 21:13:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-10-15 21:13:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:13:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:13:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:13:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:13:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-15 21:13:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-15 21:13:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-15 21:13:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-10-15 21:13:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:13:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:13:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:13:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:13:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-15 21:13:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-15 21:13:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:13:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:13:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-10-15 21:13:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-10-15 21:13:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-10-15 21:13:13,218 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-10-15 21:13:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-10-15 21:13:13,219 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-10-15 21:13:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:13:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-15 21:13:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-10-15 21:13:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-10-15 21:13:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-10-15 21:13:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-10-15 21:13:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:13:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-10-15 21:13:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-10-15 21:13:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-10-15 21:13:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-10-15 21:13:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-15 21:13:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:13:13,223 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:13:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-10-15 21:13:13,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-10-15 21:13:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:13:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:13:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:13:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:13:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-10-15 21:13:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-10-15 21:13:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:13:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:13:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:13:13,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:13:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:13:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:13:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-10-15 21:13:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-10-15 21:13:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2022-10-15 21:13:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2022-10-15 21:13:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-10-15 21:13:13,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-10-15 21:13:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-10-15 21:13:13,232 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-10-15 21:13:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:13:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:13:13,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:13:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:13:13,233 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:13:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-10-15 21:13:13,234 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-10-15 21:13:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:13:13,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:13:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:13:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-10-15 21:13:13,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-10-15 21:13:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2022-10-15 21:13:13,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2022-10-15 21:13:13,236 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-10-15 21:13:13,236 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-10-15 21:13:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:13:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-10-15 21:13:13,237 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-10-15 21:13:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-15 21:13:13,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-15 21:13:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:13:13,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:13:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:13:13,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:13:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-10-15 21:13:13,239 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-10-15 21:13:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-10-15 21:13:13,240 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-10-15 21:13:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 21:13:13,240 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 21:13:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:13:13,240 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:13:13,241 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-10-15 21:13:13,242 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-10-15 21:13:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-10-15 21:13:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-10-15 21:13:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:13:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:13:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:13:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-10-15 21:13:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-10-15 21:13:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-10-15 21:13:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-10-15 21:13:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-10-15 21:13:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-10-15 21:13:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-15 21:13:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-15 21:13:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:13:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:13:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-10-15 21:13:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-10-15 21:13:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-10-15 21:13:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-10-15 21:13:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:13:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-10-15 21:13:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-10-15 21:13:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:13:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 21:13:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 21:13:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:13:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2022-10-15 21:13:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2022-10-15 21:13:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:13,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-15 21:13:13,260 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-15 21:13:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-10-15 21:13:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-10-15 21:13:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-10-15 21:13:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-10-15 21:13:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2022-10-15 21:13:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2022-10-15 21:13:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-10-15 21:13:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-10-15 21:13:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-10-15 21:13:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-10-15 21:13:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-10-15 21:13:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-10-15 21:13:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-15 21:13:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-15 21:13:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-15 21:13:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-15 21:13:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:13:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-15 21:13:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-15 21:13:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-15 21:13:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-15 21:13:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-10-15 21:13:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-10-15 21:13:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:13:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:13:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-10-15 21:13:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-10-15 21:13:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2022-10-15 21:13:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2022-10-15 21:13:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:13:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:13:14,113 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:13:14,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:13:14,566 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:13:15,340 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-15 21:13:24,895 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:13:24,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:13:24,933 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:13:24,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:24 BoogieIcfgContainer [2022-10-15 21:13:24,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:13:24,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:13:24,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:13:24,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:13:24,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:13:09" (1/3) ... [2022-10-15 21:13:24,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3462cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:24, skipping insertion in model container [2022-10-15 21:13:24,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:12" (2/3) ... [2022-10-15 21:13:24,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3462cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:24, skipping insertion in model container [2022-10-15 21:13:24,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:24" (3/3) ... [2022-10-15 21:13:24,949 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-10-15 21:13:24,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:13:24,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2022-10-15 21:13:25,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:13:25,112 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;@46d6633b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:13:25,112 INFO L358 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2022-10-15 21:13:25,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 1681 states, 1165 states have (on average 1.4034334763948497) internal successors, (1635), 1288 states have internal predecessors, (1635), 346 states have call successors, (346), 83 states have call predecessors, (346), 81 states have return successors, (335), 327 states have call predecessors, (335), 335 states have call successors, (335) [2022-10-15 21:13:25,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-15 21:13:25,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:25,189 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:25,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-15 21:13:25,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:25,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1990717750, now seen corresponding path program 1 times [2022-10-15 21:13:25,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:25,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391114730] [2022-10-15 21:13:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:25,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:13:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:13:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:13:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:13:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:13:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:13:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:13:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:13:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 21:13:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:13:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 21:13:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-15 21:13:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-15 21:13:26,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:26,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391114730] [2022-10-15 21:13:26,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391114730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:26,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:26,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:26,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386664640] [2022-10-15 21:13:26,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:26,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:26,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:26,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:26,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:26,833 INFO L87 Difference]: Start difference. First operand has 1681 states, 1165 states have (on average 1.4034334763948497) internal successors, (1635), 1288 states have internal predecessors, (1635), 346 states have call successors, (346), 83 states have call predecessors, (346), 81 states have return successors, (335), 327 states have call predecessors, (335), 335 states have call successors, (335) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:13:30,941 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 21:13:32,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:38,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:42,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:44,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:48,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:48,034 INFO L93 Difference]: Finished difference Result 4792 states and 6800 transitions. [2022-10-15 21:13:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:13:48,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 114 [2022-10-15 21:13:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:48,117 INFO L225 Difference]: With dead ends: 4792 [2022-10-15 21:13:48,118 INFO L226 Difference]: Without dead ends: 3041 [2022-10-15 21:13:48,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:48,154 INFO L413 NwaCegarLoop]: 2396 mSDtfsCounter, 2839 mSDsluCounter, 3813 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 1500 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3073 SdHoareTripleChecker+Valid, 6209 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1500 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:48,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3073 Valid, 6209 Invalid, 3853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1500 Valid, 2348 Invalid, 5 Unknown, 0 Unchecked, 20.4s Time] [2022-10-15 21:13:48,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-10-15 21:13:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2780. [2022-10-15 21:13:48,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 1987 states have (on average 1.3688978359335682) internal successors, (2720), 2100 states have internal predecessors, (2720), 566 states have call successors, (566), 149 states have call predecessors, (566), 149 states have return successors, (566), 549 states have call predecessors, (566), 566 states have call successors, (566) [2022-10-15 21:13:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3852 transitions. [2022-10-15 21:13:48,495 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3852 transitions. Word has length 114 [2022-10-15 21:13:48,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:48,496 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 3852 transitions. [2022-10-15 21:13:48,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:13:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3852 transitions. [2022-10-15 21:13:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 21:13:48,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:48,503 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:48,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:13:48,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-15 21:13:48,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:48,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2117127227, now seen corresponding path program 1 times [2022-10-15 21:13:48,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:48,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415597053] [2022-10-15 21:13:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:48,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:13:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:13:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:13:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:13:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:13:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:13:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:13:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:13:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:13:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 21:13:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:13:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 21:13:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-15 21:13:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-15 21:13:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-15 21:13:49,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:49,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415597053] [2022-10-15 21:13:49,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415597053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:49,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:49,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:49,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840041315] [2022-10-15 21:13:49,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:49,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:49,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:49,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:49,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:49,420 INFO L87 Difference]: Start difference. First operand 2780 states and 3852 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-15 21:13:52,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:55,038 WARN L539 Checker$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 21:14:00,416 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 []