/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 [2022-10-16 13:05:54,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:05:54,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:05:54,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:05:54,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:05:54,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:05:54,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:05:54,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:05:54,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:05:54,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:05:54,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:05:54,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:05:54,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:05:54,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:05:54,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:05:54,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:05:54,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:05:54,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:05:54,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:05:54,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:05:54,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:05:54,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:05:54,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:05:54,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:05:54,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:05:54,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:05:54,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:05:54,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:05:54,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:05:54,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:05:54,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:05:54,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:05:54,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:05:54,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:05:54,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:05:54,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:05:54,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:05:54,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:05:54,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:05:54,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:05:54,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:05:54,443 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 [2022-10-16 13:05:54,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:05:54,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:05:54,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:05:54,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:05:54,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:05:54,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:05:54,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:05:54,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:05:54,509 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:05:54,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:05:54,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:05:54,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:05:54,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:05:54,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:05:54,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:05:54,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:05:54,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:05:54,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:05:54,513 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:05:54,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:05:54,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:05:54,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:05:54,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:05:54,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:05:54,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:05:54,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:05:54,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:05:54,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:05:54,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:05:54,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:05:54,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:05:54,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:05:54,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:05:54,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:05:54,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:05:54,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:05:54,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:05:54,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:05:54,972 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:05:54,973 INFO L432 ainManager$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 [2022-10-16 13:05:55,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba219adc/d20b1584edca4ab1a7cc227e21091c1c/FLAGbe1963a8c [2022-10-16 13:05:56,001 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:05:56,002 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 [2022-10-16 13:05:56,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba219adc/d20b1584edca4ab1a7cc227e21091c1c/FLAGbe1963a8c [2022-10-16 13:05:56,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba219adc/d20b1584edca4ab1a7cc227e21091c1c [2022-10-16 13:05:56,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:05:56,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:05:56,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:05:56,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:05:56,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:05:56,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:05:56" (1/1) ... [2022-10-16 13:05:56,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b21c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:56, skipping insertion in model container [2022-10-16 13:05:56,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:05:56" (1/1) ... [2022-10-16 13:05:56,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:05:56,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:05:58,099 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] [2022-10-16 13:05:58,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:05:58,773 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:05:58,945 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] [2022-10-16 13:05:59,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:05:59,658 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:05:59,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59 WrapperNode [2022-10-16 13:05:59,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:05:59,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:05:59,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:05:59,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:05:59,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:05:59,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,037 INFO L138 Inliner]: procedures = 245, calls = 3306, calls flagged for inlining = 118, calls inlined = 118, statements flattened = 6515 [2022-10-16 13:06:00,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:06:00,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:06:00,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:06:00,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:06:00,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,493 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:06:00,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:06:00,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:06:00,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:06:00,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (1/1) ... [2022-10-16 13:06:00,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:06:00,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:06:00,616 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) [2022-10-16 13:06:00,632 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 [2022-10-16 13:06:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-10-16 13:06:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-10-16 13:06:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-10-16 13:06:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-10-16 13:06:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2022-10-16 13:06:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2022-10-16 13:06:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:06:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:06:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:06:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:06:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2022-10-16 13:06:00,689 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2022-10-16 13:06:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-10-16 13:06:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-10-16 13:06:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-16 13:06:00,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-16 13:06:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2022-10-16 13:06:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2022-10-16 13:06:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-10-16 13:06:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-10-16 13:06:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:06:00,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:06:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-10-16 13:06:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-10-16 13:06:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-16 13:06:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-16 13:06:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-10-16 13:06:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-10-16 13:06:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:06:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:06:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:06:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:06:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-16 13:06:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-16 13:06:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-16 13:06:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-10-16 13:06:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 13:06:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 13:06:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:06:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:06:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-16 13:06:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-16 13:06:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 13:06:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 13:06:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-10-16 13:06:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-10-16 13:06:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-10-16 13:06:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-10-16 13:06:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-10-16 13:06:00,696 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-10-16 13:06:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:06:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 13:06:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-10-16 13:06:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-10-16 13:06:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-10-16 13:06:00,699 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-10-16 13:06:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:06:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-10-16 13:06:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-10-16 13:06:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-10-16 13:06:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-10-16 13:06:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-16 13:06:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 13:06:00,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 13:06:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-10-16 13:06:00,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-10-16 13:06:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:06:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:06:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 13:06:00,702 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 13:06:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-10-16 13:06:00,703 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-10-16 13:06:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 13:06:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 13:06:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-16 13:06:00,704 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-16 13:06:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:06:00,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:06:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-10-16 13:06:00,705 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-10-16 13:06:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2022-10-16 13:06:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2022-10-16 13:06:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-10-16 13:06:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-10-16 13:06:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-10-16 13:06:00,706 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-10-16 13:06:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:06:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:06:00,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:06:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 13:06:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 13:06:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-10-16 13:06:00,708 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-10-16 13:06:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 13:06:00,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 13:06:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:06:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-10-16 13:06:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-10-16 13:06:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2022-10-16 13:06:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2022-10-16 13:06:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-10-16 13:06:00,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-10-16 13:06:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:06:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-10-16 13:06:00,712 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-10-16 13:06:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-16 13:06:00,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-16 13:06:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 13:06:00,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 13:06:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-16 13:06:00,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-16 13:06:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-10-16 13:06:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-10-16 13:06:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-10-16 13:06:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-10-16 13:06:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 13:06:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 13:06:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-16 13:06:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-16 13:06:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-10-16 13:06:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-10-16 13:06:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-10-16 13:06:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-10-16 13:06:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:06:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:06:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:06:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-10-16 13:06:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-10-16 13:06:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-10-16 13:06:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-10-16 13:06:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-10-16 13:06:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-10-16 13:06:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-16 13:06:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-16 13:06:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:06:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:06:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-10-16 13:06:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-10-16 13:06:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-10-16 13:06:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-10-16 13:06:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:06:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-10-16 13:06:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-10-16 13:06:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:06:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 13:06:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 13:06:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:06:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2022-10-16 13:06:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2022-10-16 13:06:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:06:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:06:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-16 13:06:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-16 13:06:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-10-16 13:06:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-10-16 13:06:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-10-16 13:06:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-10-16 13:06:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2022-10-16 13:06:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2022-10-16 13:06:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-10-16 13:06:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-10-16 13:06:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-10-16 13:06:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-10-16 13:06:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-10-16 13:06:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-10-16 13:06:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 13:06:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 13:06:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-16 13:06:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-16 13:06:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:06:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-16 13:06:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-16 13:06:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-16 13:06:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-16 13:06:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-10-16 13:06:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-10-16 13:06:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:06:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:06:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-10-16 13:06:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-10-16 13:06:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2022-10-16 13:06:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2022-10-16 13:06:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:06:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:06:01,590 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:06:01,595 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:06:01,895 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:06:02,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-16 13:06:11,734 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:06:11,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:06:11,780 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:06:11,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:06:11 BoogieIcfgContainer [2022-10-16 13:06:11,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:06:11,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:06:11,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:06:11,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:06:11,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:05:56" (1/3) ... [2022-10-16 13:06:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd54b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:06:11, skipping insertion in model container [2022-10-16 13:06:11,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:05:59" (2/3) ... [2022-10-16 13:06:11,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd54b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:06:11, skipping insertion in model container [2022-10-16 13:06:11,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:06:11" (3/3) ... [2022-10-16 13:06:11,803 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-10-16 13:06:11,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:06:11,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2022-10-16 13:06:11,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:06:11,976 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;@5e96f481, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:06:11,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2022-10-16 13:06:11,991 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) [2022-10-16 13:06:12,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 13:06:12,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:12,031 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] [2022-10-16 13:06:12,032 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)] === [2022-10-16 13:06:12,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:12,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1990717750, now seen corresponding path program 1 times [2022-10-16 13:06:12,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:12,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461074665] [2022-10-16 13:06:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:12,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:06:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:06:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:06:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:06:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:06:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:06:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:06:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:06:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:06:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:06:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:06:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:06:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:06:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:06:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 13:06:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:06:13,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:13,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461074665] [2022-10-16 13:06:13,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461074665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:13,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:13,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:06:13,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155887106] [2022-10-16 13:06:13,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:13,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:06:13,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:13,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:06:13,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:06:13,772 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) [2022-10-16 13:06:18,013 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 [] [2022-10-16 13:06:20,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:24,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:28,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:30,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:34,406 INFO L93 Difference]: Finished difference Result 4792 states and 6800 transitions. [2022-10-16 13:06:34,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:06:34,411 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 [2022-10-16 13:06:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:34,476 INFO L225 Difference]: With dead ends: 4792 [2022-10-16 13:06:34,476 INFO L226 Difference]: Without dead ends: 3041 [2022-10-16 13:06:34,497 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 [2022-10-16 13:06:34,509 INFO L413 NwaCegarLoop]: 2395 mSDtfsCounter, 2850 mSDsluCounter, 3813 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 1503 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 6208 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1503 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:34,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 6208 Invalid, 3835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1503 Valid, 2327 Invalid, 5 Unknown, 0 Unchecked, 19.9s Time] [2022-10-16 13:06:34,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-10-16 13:06:34,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2780. [2022-10-16 13:06:34,796 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) [2022-10-16 13:06:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3852 transitions. [2022-10-16 13:06:34,825 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3852 transitions. Word has length 114 [2022-10-16 13:06:34,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:34,827 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 3852 transitions. [2022-10-16 13:06:34,827 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) [2022-10-16 13:06:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3852 transitions. [2022-10-16 13:06:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 13:06:34,833 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:34,834 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] [2022-10-16 13:06:34,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:06:34,835 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)] === [2022-10-16 13:06:34,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:34,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2117127227, now seen corresponding path program 1 times [2022-10-16 13:06:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:34,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710642401] [2022-10-16 13:06:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:34,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:06:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:06:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:06:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:06:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:06:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:06:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:06:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:06:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:06:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:06:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:06:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:06:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:06:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:06:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 13:06:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 13:06:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:06:35,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:35,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710642401] [2022-10-16 13:06:35,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710642401] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:35,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:35,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:06:35,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500607573] [2022-10-16 13:06:35,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:35,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:06:35,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:35,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:06:35,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:06:35,754 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) [2022-10-16 13:06:39,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:41,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:46,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:48,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:06:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:06:56,866 INFO L93 Difference]: Finished difference Result 8510 states and 11873 transitions. [2022-10-16 13:06:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:06:56,867 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 122 [2022-10-16 13:06:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:06:56,910 INFO L225 Difference]: With dead ends: 8510 [2022-10-16 13:06:56,910 INFO L226 Difference]: Without dead ends: 5767 [2022-10-16 13:06:56,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:06:56,924 INFO L413 NwaCegarLoop]: 2843 mSDtfsCounter, 3131 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 1436 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3385 SdHoareTripleChecker+Valid, 7162 SdHoareTripleChecker+Invalid, 3902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1436 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:06:56,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3385 Valid, 7162 Invalid, 3902 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1436 Valid, 2462 Invalid, 4 Unknown, 0 Unchecked, 20.5s Time] [2022-10-16 13:06:56,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5767 states. [2022-10-16 13:06:57,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5767 to 5318. [2022-10-16 13:06:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 3864 states have (on average 1.3693064182194616) internal successors, (5291), 4012 states have internal predecessors, (5291), 1079 states have call successors, (1079), 297 states have call predecessors, (1079), 297 states have return successors, (1079), 1046 states have call predecessors, (1079), 1079 states have call successors, (1079) [2022-10-16 13:06:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 7449 transitions. [2022-10-16 13:06:57,262 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 7449 transitions. Word has length 122 [2022-10-16 13:06:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:06:57,263 INFO L495 AbstractCegarLoop]: Abstraction has 5318 states and 7449 transitions. [2022-10-16 13:06:57,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-10-16 13:06:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 7449 transitions. [2022-10-16 13:06:57,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 13:06:57,275 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:06:57,275 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] [2022-10-16 13:06:57,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:06:57,276 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:06:57,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:06:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash -70309837, now seen corresponding path program 1 times [2022-10-16 13:06:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:06:57,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598415653] [2022-10-16 13:06:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:06:57,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:06:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:06:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:06:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:06:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:06:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:06:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:06:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:06:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:06:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:06:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:06:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:06:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:06:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:06:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:06:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:58,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:06:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:58,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 13:06:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:06:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:06:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:06:58,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:06:58,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598415653] [2022-10-16 13:06:58,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598415653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:06:58,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:06:58,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:06:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044751473] [2022-10-16 13:06:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:06:58,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:06:58,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:06:58,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:06:58,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:06:58,106 INFO L87 Difference]: Start difference. First operand 5318 states and 7449 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-10-16 13:07:00,873 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 [] [2022-10-16 13:07:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:09,362 INFO L93 Difference]: Finished difference Result 14335 states and 20172 transitions. [2022-10-16 13:07:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:07:09,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 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 121 [2022-10-16 13:07:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:09,444 INFO L225 Difference]: With dead ends: 14335 [2022-10-16 13:07:09,444 INFO L226 Difference]: Without dead ends: 9054 [2022-10-16 13:07:09,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:07:09,472 INFO L413 NwaCegarLoop]: 2402 mSDtfsCounter, 3359 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 2009 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 6515 SdHoareTripleChecker+Invalid, 4269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2009 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:09,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 6515 Invalid, 4269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2009 Valid, 2259 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-10-16 13:07:09,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9054 states. [2022-10-16 13:07:10,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9054 to 8055. [2022-10-16 13:07:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8055 states, 5893 states have (on average 1.3653487188189377) internal successors, (8046), 6079 states have internal predecessors, (8046), 1598 states have call successors, (1598), 486 states have call predecessors, (1598), 486 states have return successors, (1598), 1540 states have call predecessors, (1598), 1598 states have call successors, (1598) [2022-10-16 13:07:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8055 states to 8055 states and 11242 transitions. [2022-10-16 13:07:10,109 INFO L78 Accepts]: Start accepts. Automaton has 8055 states and 11242 transitions. Word has length 121 [2022-10-16 13:07:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:10,111 INFO L495 AbstractCegarLoop]: Abstraction has 8055 states and 11242 transitions. [2022-10-16 13:07:10,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-10-16 13:07:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8055 states and 11242 transitions. [2022-10-16 13:07:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 13:07:10,118 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:10,119 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:07:10,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:07:10,119 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:07:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:10,123 INFO L85 PathProgramCache]: Analyzing trace with hash -512816443, now seen corresponding path program 1 times [2022-10-16 13:07:10,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:10,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594240638] [2022-10-16 13:07:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:10,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:07:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:07:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:07:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:07:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:07:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:07:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:07:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:07:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:07:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:07:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:07:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:07:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:07:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:07:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:07:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 13:07:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 13:07:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 13:07:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 13:07:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-16 13:07:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:07:11,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:11,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594240638] [2022-10-16 13:07:11,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594240638] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:11,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:11,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 13:07:11,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110148540] [2022-10-16 13:07:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:11,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 13:07:11,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:11,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 13:07:11,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:07:11,800 INFO L87 Difference]: Start difference. First operand 8055 states and 11242 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:07:15,199 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 [] [2022-10-16 13:07:19,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:07:21,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:07:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:30,436 INFO L93 Difference]: Finished difference Result 17050 states and 24015 transitions. [2022-10-16 13:07:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:07:30,437 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) Word has length 166 [2022-10-16 13:07:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:30,530 INFO L225 Difference]: With dead ends: 17050 [2022-10-16 13:07:30,531 INFO L226 Difference]: Without dead ends: 9042 [2022-10-16 13:07:30,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:07:30,576 INFO L413 NwaCegarLoop]: 2152 mSDtfsCounter, 1890 mSDsluCounter, 10145 mSDsCounter, 0 mSdLazyCounter, 4278 mSolverCounterSat, 1146 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 12297 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 4278 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:30,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 12297 Invalid, 5427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1146 Valid, 4278 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2022-10-16 13:07:30,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9042 states. [2022-10-16 13:07:31,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9042 to 8055. [2022-10-16 13:07:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8055 states, 5893 states have (on average 1.3639911759714916) internal successors, (8038), 6079 states have internal predecessors, (8038), 1598 states have call successors, (1598), 486 states have call predecessors, (1598), 486 states have return successors, (1598), 1540 states have call predecessors, (1598), 1598 states have call successors, (1598) [2022-10-16 13:07:31,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8055 states to 8055 states and 11234 transitions. [2022-10-16 13:07:31,214 INFO L78 Accepts]: Start accepts. Automaton has 8055 states and 11234 transitions. Word has length 166 [2022-10-16 13:07:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:31,216 INFO L495 AbstractCegarLoop]: Abstraction has 8055 states and 11234 transitions. [2022-10-16 13:07:31,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:07:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8055 states and 11234 transitions. [2022-10-16 13:07:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 13:07:31,222 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:31,222 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:07:31,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:07:31,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:07:31,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:31,226 INFO L85 PathProgramCache]: Analyzing trace with hash -865904825, now seen corresponding path program 1 times [2022-10-16 13:07:31,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:31,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583891647] [2022-10-16 13:07:31,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:31,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:07:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:07:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:07:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:07:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:07:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:07:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:07:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:07:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:07:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:07:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:07:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:07:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:07:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:07:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:07:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 13:07:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 13:07:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 13:07:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 13:07:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-16 13:07:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:07:32,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:32,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583891647] [2022-10-16 13:07:32,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583891647] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:32,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:32,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:07:32,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368469577] [2022-10-16 13:07:32,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:32,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:07:32,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:32,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:07:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:07:32,120 INFO L87 Difference]: Start difference. First operand 8055 states and 11234 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:07:35,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:07:38,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:07:40,697 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 [] [2022-10-16 13:07:46,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:07:46,572 INFO L93 Difference]: Finished difference Result 17028 states and 23960 transitions. [2022-10-16 13:07:46,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:07:46,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 166 [2022-10-16 13:07:46,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:07:46,619 INFO L225 Difference]: With dead ends: 17028 [2022-10-16 13:07:46,619 INFO L226 Difference]: Without dead ends: 8996 [2022-10-16 13:07:46,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:07:46,655 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 1143 mSDsluCounter, 5565 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 1143 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 7690 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1143 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:07:46,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 7690 Invalid, 3593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1143 Valid, 2447 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2022-10-16 13:07:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8996 states. [2022-10-16 13:07:47,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8996 to 8055. [2022-10-16 13:07:47,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8055 states, 5893 states have (on average 1.3626336331240454) internal successors, (8030), 6079 states have internal predecessors, (8030), 1598 states have call successors, (1598), 486 states have call predecessors, (1598), 486 states have return successors, (1598), 1540 states have call predecessors, (1598), 1598 states have call successors, (1598) [2022-10-16 13:07:47,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8055 states to 8055 states and 11226 transitions. [2022-10-16 13:07:47,126 INFO L78 Accepts]: Start accepts. Automaton has 8055 states and 11226 transitions. Word has length 166 [2022-10-16 13:07:47,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:07:47,127 INFO L495 AbstractCegarLoop]: Abstraction has 8055 states and 11226 transitions. [2022-10-16 13:07:47,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:07:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 8055 states and 11226 transitions. [2022-10-16 13:07:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 13:07:47,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:07:47,133 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:07:47,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:07:47,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:07:47,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:07:47,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1026486732, now seen corresponding path program 1 times [2022-10-16 13:07:47,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:07:47,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883468582] [2022-10-16 13:07:47,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:07:47,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:07:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:07:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:07:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:07:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:07:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:07:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:07:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:07:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:07:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:07:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:07:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:07:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:07:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:07:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:07:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:07:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:07:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:07:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 13:07:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 13:07:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:07:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:07:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-10-16 13:07:48,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:07:48,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883468582] [2022-10-16 13:07:48,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883468582] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:07:48,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:07:48,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:07:48,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34003818] [2022-10-16 13:07:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:07:48,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:07:48,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:07:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:07:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:07:48,466 INFO L87 Difference]: Start difference. First operand 8055 states and 11226 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 13:07:51,262 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 [] [2022-10-16 13:08:00,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:00,844 INFO L93 Difference]: Finished difference Result 19798 states and 28468 transitions. [2022-10-16 13:08:00,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:08:00,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 166 [2022-10-16 13:08:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:00,910 INFO L225 Difference]: With dead ends: 19798 [2022-10-16 13:08:00,910 INFO L226 Difference]: Without dead ends: 11790 [2022-10-16 13:08:00,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:08:00,947 INFO L413 NwaCegarLoop]: 2928 mSDtfsCounter, 3944 mSDsluCounter, 5294 mSDsCounter, 0 mSdLazyCounter, 2426 mSolverCounterSat, 1769 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4208 SdHoareTripleChecker+Valid, 8222 SdHoareTripleChecker+Invalid, 4196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1769 IncrementalHoareTripleChecker+Valid, 2426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:00,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4208 Valid, 8222 Invalid, 4196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1769 Valid, 2426 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2022-10-16 13:08:00,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11790 states. [2022-10-16 13:08:01,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11790 to 8059. [2022-10-16 13:08:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8059 states, 5897 states have (on average 1.3623876547396983) internal successors, (8034), 6083 states have internal predecessors, (8034), 1598 states have call successors, (1598), 486 states have call predecessors, (1598), 486 states have return successors, (1598), 1540 states have call predecessors, (1598), 1598 states have call successors, (1598) [2022-10-16 13:08:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8059 states to 8059 states and 11230 transitions. [2022-10-16 13:08:01,708 INFO L78 Accepts]: Start accepts. Automaton has 8059 states and 11230 transitions. Word has length 166 [2022-10-16 13:08:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:01,709 INFO L495 AbstractCegarLoop]: Abstraction has 8059 states and 11230 transitions. [2022-10-16 13:08:01,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 13:08:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 8059 states and 11230 transitions. [2022-10-16 13:08:01,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 13:08:01,717 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:01,717 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:01,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:08:01,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:08:01,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:01,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1299823309, now seen corresponding path program 1 times [2022-10-16 13:08:01,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:01,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22534449] [2022-10-16 13:08:01,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:01,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:08:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:08:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:08:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:08:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:08:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:08:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:08:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:08:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:08:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:08:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:08:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:08:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:08:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:08:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:08:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:08:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:08:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 13:08:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 13:08:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:08:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 13:08:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:08:02,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:02,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22534449] [2022-10-16 13:08:02,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22534449] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:02,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:08:02,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:08:02,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809313998] [2022-10-16 13:08:02,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:02,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:08:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:08:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:08:02,751 INFO L87 Difference]: Start difference. First operand 8059 states and 11230 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-10-16 13:08:05,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:08:11,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:08:19,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:19,187 INFO L93 Difference]: Finished difference Result 22162 states and 31134 transitions. [2022-10-16 13:08:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:08:19,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 174 [2022-10-16 13:08:19,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:19,263 INFO L225 Difference]: With dead ends: 22162 [2022-10-16 13:08:19,263 INFO L226 Difference]: Without dead ends: 14150 [2022-10-16 13:08:19,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:08:19,290 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 3476 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 1848 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3734 SdHoareTripleChecker+Valid, 8464 SdHoareTripleChecker+Invalid, 4678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1848 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:19,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3734 Valid, 8464 Invalid, 4678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1848 Valid, 2828 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2022-10-16 13:08:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14150 states. [2022-10-16 13:08:20,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14150 to 12591. [2022-10-16 13:08:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12591 states, 9311 states have (on average 1.3582858983997423) internal successors, (12647), 9559 states have internal predecessors, (12647), 2429 states have call successors, (2429), 773 states have call predecessors, (2429), 773 states have return successors, (2429), 2337 states have call predecessors, (2429), 2429 states have call successors, (2429) [2022-10-16 13:08:20,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12591 states to 12591 states and 17505 transitions. [2022-10-16 13:08:20,395 INFO L78 Accepts]: Start accepts. Automaton has 12591 states and 17505 transitions. Word has length 174 [2022-10-16 13:08:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:20,396 INFO L495 AbstractCegarLoop]: Abstraction has 12591 states and 17505 transitions. [2022-10-16 13:08:20,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-10-16 13:08:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 12591 states and 17505 transitions. [2022-10-16 13:08:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 13:08:20,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:20,403 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:20,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:08:20,404 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:08:20,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:20,405 INFO L85 PathProgramCache]: Analyzing trace with hash 67926762, now seen corresponding path program 1 times [2022-10-16 13:08:20,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:20,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731290324] [2022-10-16 13:08:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:20,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:08:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:08:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:08:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:08:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:08:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:08:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:08:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:08:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:08:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:08:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:08:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:08:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:08:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:08:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:08:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:08:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:08:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 13:08:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 13:08:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-16 13:08:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:23,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731290324] [2022-10-16 13:08:23,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731290324] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:23,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:08:23,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-16 13:08:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123344035] [2022-10-16 13:08:23,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:23,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 13:08:23,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:23,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 13:08:23,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:08:23,825 INFO L87 Difference]: Start difference. First operand 12591 states and 17505 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-10-16 13:08:27,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:08:29,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:08:33,967 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 [] [2022-10-16 13:08:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:43,116 INFO L93 Difference]: Finished difference Result 26789 states and 37514 transitions. [2022-10-16 13:08:43,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 13:08:43,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 176 [2022-10-16 13:08:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:43,187 INFO L225 Difference]: With dead ends: 26789 [2022-10-16 13:08:43,187 INFO L226 Difference]: Without dead ends: 14151 [2022-10-16 13:08:43,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2022-10-16 13:08:43,224 INFO L413 NwaCegarLoop]: 2115 mSDtfsCounter, 1413 mSDsluCounter, 12071 mSDsCounter, 0 mSdLazyCounter, 4974 mSolverCounterSat, 1226 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 14186 SdHoareTripleChecker+Invalid, 6203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1226 IncrementalHoareTripleChecker+Valid, 4974 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:43,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 14186 Invalid, 6203 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1226 Valid, 4974 Invalid, 3 Unknown, 0 Unchecked, 18.0s Time] [2022-10-16 13:08:43,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14151 states. [2022-10-16 13:08:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 12693. [2022-10-16 13:08:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12693 states, 9386 states have (on average 1.3576603451949711) internal successors, (12743), 9646 states have internal predecessors, (12743), 2439 states have call successors, (2439), 779 states have call predecessors, (2439), 790 states have return successors, (2497), 2346 states have call predecessors, (2497), 2439 states have call successors, (2497) [2022-10-16 13:08:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12693 states to 12693 states and 17679 transitions. [2022-10-16 13:08:44,248 INFO L78 Accepts]: Start accepts. Automaton has 12693 states and 17679 transitions. Word has length 176 [2022-10-16 13:08:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:44,249 INFO L495 AbstractCegarLoop]: Abstraction has 12693 states and 17679 transitions. [2022-10-16 13:08:44,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-10-16 13:08:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 12693 states and 17679 transitions. [2022-10-16 13:08:44,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 13:08:44,256 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:44,257 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:44,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 13:08:44,258 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:08:44,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash 613240940, now seen corresponding path program 1 times [2022-10-16 13:08:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:44,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203570434] [2022-10-16 13:08:44,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:44,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:08:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:08:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:08:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:08:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:08:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:08:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:08:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:08:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:08:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:08:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:08:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:08:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:08:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:08:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:08:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:08:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 13:08:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:08:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 13:08:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:08:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 13:08:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 13:08:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 13:08:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 13:08:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:08:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-10-16 13:08:46,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:08:46,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203570434] [2022-10-16 13:08:46,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203570434] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:08:46,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:08:46,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:08:46,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843497770] [2022-10-16 13:08:46,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:08:46,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:08:46,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:08:46,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:08:46,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:08:46,127 INFO L87 Difference]: Start difference. First operand 12693 states and 17679 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 13:08:49,384 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 [] [2022-10-16 13:08:57,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:08:57,630 INFO L93 Difference]: Finished difference Result 26787 states and 37566 transitions. [2022-10-16 13:08:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:08:57,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 197 [2022-10-16 13:08:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:08:57,701 INFO L225 Difference]: With dead ends: 26787 [2022-10-16 13:08:57,701 INFO L226 Difference]: Without dead ends: 14122 [2022-10-16 13:08:57,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:08:57,745 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 1136 mSDsluCounter, 5575 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 1143 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 7710 SdHoareTripleChecker+Invalid, 3597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1143 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:08:57,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 7710 Invalid, 3597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1143 Valid, 2453 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-10-16 13:08:57,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14122 states. [2022-10-16 13:08:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14122 to 12702. [2022-10-16 13:08:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12702 states, 9395 states have (on average 1.3573177221926556) internal successors, (12752), 9655 states have internal predecessors, (12752), 2439 states have call successors, (2439), 779 states have call predecessors, (2439), 790 states have return successors, (2497), 2346 states have call predecessors, (2497), 2439 states have call successors, (2497) [2022-10-16 13:08:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12702 states to 12702 states and 17688 transitions. [2022-10-16 13:08:58,695 INFO L78 Accepts]: Start accepts. Automaton has 12702 states and 17688 transitions. Word has length 197 [2022-10-16 13:08:58,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:08:58,696 INFO L495 AbstractCegarLoop]: Abstraction has 12702 states and 17688 transitions. [2022-10-16 13:08:58,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 13:08:58,696 INFO L276 IsEmpty]: Start isEmpty. Operand 12702 states and 17688 transitions. [2022-10-16 13:08:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-10-16 13:08:58,703 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:08:58,703 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:08:58,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 13:08:58,704 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:08:58,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:08:58,704 INFO L85 PathProgramCache]: Analyzing trace with hash -175997800, now seen corresponding path program 1 times [2022-10-16 13:08:58,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:08:58,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374587033] [2022-10-16 13:08:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:08:58,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:08:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:09:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:09:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:09:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:09:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:09:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:09:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:09:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:09:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:09:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:09:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:09:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:09:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:09:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:09:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 13:09:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 13:09:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:09:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 13:09:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:09:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:09:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:09:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 13:09:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:01,007 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-10-16 13:09:01,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:09:01,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374587033] [2022-10-16 13:09:01,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374587033] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:09:01,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330982449] [2022-10-16 13:09:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:01,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:09:01,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:09:01,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:09:01,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:09:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:02,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 5989 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 13:09:02,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:09:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-10-16 13:09:02,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:09:02,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330982449] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:09:02,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:09:02,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-10-16 13:09:02,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047439533] [2022-10-16 13:09:02,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:09:02,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:09:02,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:09:02,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:09:02,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:09:02,684 INFO L87 Difference]: Start difference. First operand 12702 states and 17688 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-10-16 13:09:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:09:03,819 INFO L93 Difference]: Finished difference Result 25237 states and 35151 transitions. [2022-10-16 13:09:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:09:03,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 198 [2022-10-16 13:09:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:09:03,875 INFO L225 Difference]: With dead ends: 25237 [2022-10-16 13:09:03,875 INFO L226 Difference]: Without dead ends: 12525 [2022-10-16 13:09:03,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:09:03,911 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 8 mSDsluCounter, 6672 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8901 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:09:03,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8901 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:09:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12525 states. [2022-10-16 13:09:04,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12525 to 12471. [2022-10-16 13:09:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12471 states, 9223 states have (on average 1.3604033394773936) internal successors, (12547), 9490 states have internal predecessors, (12547), 2401 states have call successors, (2401), 758 states have call predecessors, (2401), 769 states have return successors, (2459), 2301 states have call predecessors, (2459), 2401 states have call successors, (2459) [2022-10-16 13:09:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12471 states to 12471 states and 17407 transitions. [2022-10-16 13:09:04,729 INFO L78 Accepts]: Start accepts. Automaton has 12471 states and 17407 transitions. Word has length 198 [2022-10-16 13:09:04,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:09:04,730 INFO L495 AbstractCegarLoop]: Abstraction has 12471 states and 17407 transitions. [2022-10-16 13:09:04,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-10-16 13:09:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 12471 states and 17407 transitions. [2022-10-16 13:09:04,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-10-16 13:09:04,736 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:09:04,737 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:09:04,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:09:04,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 13:09:04,950 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [acm_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, acm_disconnectErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 13:09:04,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:09:04,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1578816831, now seen corresponding path program 1 times [2022-10-16 13:09:04,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:09:04,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965990379] [2022-10-16 13:09:04,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:04,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:09:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:09:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:09:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:09:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:09:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:09:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:09:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:09:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:09:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:09:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:09:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:09:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:09:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:09:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:06,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:09:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 13:09:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:09:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 13:09:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:09:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 13:09:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:09:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 13:09:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 13:09:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 13:09:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 13:09:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-10-16 13:09:07,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:09:07,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965990379] [2022-10-16 13:09:07,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965990379] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:09:07,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318239857] [2022-10-16 13:09:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:09:07,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:09:07,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:09:07,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:09:07,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:09:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:09:09,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 6078 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 13:09:09,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:09:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 224 proven. 1 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-10-16 13:09:09,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:09:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-10-16 13:09:09,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318239857] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:09:09,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:09:09,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2022-10-16 13:09:09,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972598520] [2022-10-16 13:09:09,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:09:09,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:09:09,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:09:09,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:09:09,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:09:09,669 INFO L87 Difference]: Start difference. First operand 12471 states and 17407 transitions. Second operand has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 10 states have internal predecessors, (112), 2 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-10-16 13:09:14,138 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 []