./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:29:15,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:29:15,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:29:15,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:29:15,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:29:15,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:29:15,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:29:15,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:29:15,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:29:15,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:29:15,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:29:15,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:29:15,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:29:15,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:29:15,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:29:15,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:29:15,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:29:15,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:29:15,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:29:15,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:29:15,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:29:15,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:29:15,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:29:15,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:29:15,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:29:15,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:29:15,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:29:15,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:29:15,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:29:15,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:29:15,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:29:15,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:29:15,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:29:15,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:29:15,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:29:15,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:29:15,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:29:15,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:29:15,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:29:15,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:29:15,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:29:15,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:29:15,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:29:15,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:29:15,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:29:15,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:29:15,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:29:15,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:29:15,970 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:29:15,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:29:15,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:29:15,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:29:15,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:29:15,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:29:15,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:29:15,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:29:15,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:29:15,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:29:15,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:29:15,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:29:15,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:29:15,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:29:15,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:29:15,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:29:15,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:29:15,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:29:15,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:29:15,973 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:29:15,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:29:15,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:29:15,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:29:15,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 [2021-11-07 15:29:16,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:29:16,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:29:16,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:29:16,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:29:16,160 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:29:16,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-07 15:29:16,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc9804d4/cbd31b2cda784178b28f619bbda3f886/FLAGc92a6fe78 [2021-11-07 15:29:16,916 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:29:16,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-07 15:29:16,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc9804d4/cbd31b2cda784178b28f619bbda3f886/FLAGc92a6fe78 [2021-11-07 15:29:17,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc9804d4/cbd31b2cda784178b28f619bbda3f886 [2021-11-07 15:29:17,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:29:17,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:29:17,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:29:17,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:29:17,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:29:17,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:29:17" (1/1) ... [2021-11-07 15:29:17,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5fe566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:17, skipping insertion in model container [2021-11-07 15:29:17,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:29:17" (1/1) ... [2021-11-07 15:29:17,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:29:17,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:29:18,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2021-11-07 15:29:18,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:29:19,061 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:29:19,431 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2021-11-07 15:29:19,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:29:19,585 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:29:19,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19 WrapperNode [2021-11-07 15:29:19,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:29:19,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:29:19,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:29:19,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:29:19,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:19,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:29:20,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:29:20,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:29:20,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:29:20,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:29:20,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:29:20,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:29:20,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:29:20,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (1/1) ... [2021-11-07 15:29:20,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:29:20,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:29:20,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 15:29:20,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 15:29:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-11-07 15:29:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-11-07 15:29:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-11-07 15:29:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-11-07 15:29:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-11-07 15:29:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-11-07 15:29:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-11-07 15:29:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-11-07 15:29:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-11-07 15:29:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-11-07 15:29:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 15:29:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-11-07 15:29:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-11-07 15:29:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-11-07 15:29:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-11-07 15:29:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-11-07 15:29:20,664 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-11-07 15:29:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-11-07 15:29:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-11-07 15:29:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-11-07 15:29:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-07 15:29:20,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-07 15:29:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 15:29:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 15:29:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 15:29:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-11-07 15:29:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-11-07 15:29:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:29:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:29:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-11-07 15:29:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-11-07 15:29:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-07 15:29:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-07 15:29:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 15:29:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 15:29:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:29:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:29:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-11-07 15:29:20,679 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-11-07 15:29:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-11-07 15:29:20,679 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-11-07 15:29:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:29:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-11-07 15:29:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 15:29:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-11-07 15:29:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 15:29:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-11-07 15:29:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-11-07 15:29:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-11-07 15:29:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:29:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-11-07 15:29:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-11-07 15:29:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-11-07 15:29:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-11-07 15:29:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-11-07 15:29:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-11-07 15:29:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-11-07 15:29:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-11-07 15:29:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 15:29:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 15:29:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:29:54,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:29:54,147 INFO L299 CfgBuilder]: Removed 2331 assume(true) statements. [2021-11-07 15:29:54,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:29:54 BoogieIcfgContainer [2021-11-07 15:29:54,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:29:54,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:29:54,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:29:54,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:29:54,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:29:17" (1/3) ... [2021-11-07 15:29:54,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1270983e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:29:54, skipping insertion in model container [2021-11-07 15:29:54,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:29:19" (2/3) ... [2021-11-07 15:29:54,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1270983e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:29:54, skipping insertion in model container [2021-11-07 15:29:54,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:29:54" (3/3) ... [2021-11-07 15:29:54,155 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-07 15:29:54,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:29:54,159 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2021-11-07 15:29:54,204 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:29:54,211 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 15:29:54,212 INFO L340 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2021-11-07 15:29:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 2747 states, 2544 states have (on average 1.39937106918239) internal successors, (3560), 2606 states have internal predecessors, (3560), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-07 15:29:54,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 15:29:54,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:29:54,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:29:54,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:29:54,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:29:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1101246796, now seen corresponding path program 1 times [2021-11-07 15:29:54,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:29:54,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180985582] [2021-11-07 15:29:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:29:54,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:29:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:29:55,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:29:55,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:29:55,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180985582] [2021-11-07 15:29:55,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180985582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:29:55,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:29:55,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:29:55,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730852634] [2021-11-07 15:29:55,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:29:55,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:29:55,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:29:55,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:29:55,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:29:55,087 INFO L87 Difference]: Start difference. First operand has 2747 states, 2544 states have (on average 1.39937106918239) internal successors, (3560), 2606 states have internal predecessors, (3560), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:29:55,226 INFO L93 Difference]: Finished difference Result 5490 states and 7662 transitions. [2021-11-07 15:29:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:29:55,229 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-07 15:29:55,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:29:55,257 INFO L225 Difference]: With dead ends: 5490 [2021-11-07 15:29:55,257 INFO L226 Difference]: Without dead ends: 2732 [2021-11-07 15:29:55,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:29:55,280 INFO L933 BasicCegarLoop]: 3661 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3661 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:29:55,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 11.82ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:29:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2021-11-07 15:29:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2732. [2021-11-07 15:29:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2530 states have (on average 1.3482213438735178) internal successors, (3411), 2591 states have internal predecessors, (3411), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-07 15:29:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3635 transitions. [2021-11-07 15:29:55,401 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3635 transitions. Word has length 95 [2021-11-07 15:29:55,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:29:55,402 INFO L470 AbstractCegarLoop]: Abstraction has 2732 states and 3635 transitions. [2021-11-07 15:29:55,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:55,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3635 transitions. [2021-11-07 15:29:55,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 15:29:55,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:29:55,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:29:55,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:29:55,409 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting serial_port_activateErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:29:55,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:29:55,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1092627974, now seen corresponding path program 1 times [2021-11-07 15:29:55,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:29:55,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122472512] [2021-11-07 15:29:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:29:55,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:29:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:29:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:29:55,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:29:55,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122472512] [2021-11-07 15:29:55,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122472512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:29:55,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:29:55,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:29:55,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949938995] [2021-11-07 15:29:55,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:29:55,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:29:55,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:29:55,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:29:55,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:29:55,886 INFO L87 Difference]: Start difference. First operand 2732 states and 3635 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:56,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:29:56,262 INFO L93 Difference]: Finished difference Result 7992 states and 10730 transitions. [2021-11-07 15:29:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:29:56,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-07 15:29:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:29:56,295 INFO L225 Difference]: With dead ends: 7992 [2021-11-07 15:29:56,295 INFO L226 Difference]: Without dead ends: 5344 [2021-11-07 15:29:56,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:29:56,307 INFO L933 BasicCegarLoop]: 3793 mSDtfsCounter, 3606 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 199.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 7333 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.87ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 226.35ms IncrementalHoareTripleChecker+Time [2021-11-07 15:29:56,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3606 Valid, 7333 Invalid, 38 Unknown, 0 Unchecked, 22.87ms Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 226.35ms Time] [2021-11-07 15:29:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-11-07 15:29:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5200. [2021-11-07 15:29:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 4858 states have (on average 1.355290242898312) internal successors, (6584), 4926 states have internal predecessors, (6584), 215 states have call successors, (215), 74 states have call predecessors, (215), 74 states have return successors, (292), 203 states have call predecessors, (292), 215 states have call successors, (292) [2021-11-07 15:29:56,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 7091 transitions. [2021-11-07 15:29:56,461 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 7091 transitions. Word has length 95 [2021-11-07 15:29:56,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:29:56,464 INFO L470 AbstractCegarLoop]: Abstraction has 5200 states and 7091 transitions. [2021-11-07 15:29:56,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 7091 transitions. [2021-11-07 15:29:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 15:29:56,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:29:56,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:29:56,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:29:56,467 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:29:56,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:29:56,467 INFO L85 PathProgramCache]: Analyzing trace with hash -68543981, now seen corresponding path program 1 times [2021-11-07 15:29:56,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:29:56,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73407649] [2021-11-07 15:29:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:29:56,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:29:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:29:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:29:56,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:29:56,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73407649] [2021-11-07 15:29:56,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73407649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:29:56,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:29:56,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:29:56,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825938730] [2021-11-07 15:29:56,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:29:56,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:29:56,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:29:56,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:29:56,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:29:56,834 INFO L87 Difference]: Start difference. First operand 5200 states and 7091 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:57,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:29:57,249 INFO L93 Difference]: Finished difference Result 14415 states and 19623 transitions. [2021-11-07 15:29:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:29:57,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-07 15:29:57,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:29:57,298 INFO L225 Difference]: With dead ends: 14415 [2021-11-07 15:29:57,299 INFO L226 Difference]: Without dead ends: 9299 [2021-11-07 15:29:57,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:29:57,326 INFO L933 BasicCegarLoop]: 3733 mSDtfsCounter, 2947 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 213.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 7176 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.44ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 262.13ms IncrementalHoareTripleChecker+Time [2021-11-07 15:29:57,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2947 Valid, 7176 Invalid, 98 Unknown, 0 Unchecked, 12.44ms Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 262.13ms Time] [2021-11-07 15:29:57,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9299 states. [2021-11-07 15:29:57,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9299 to 9136. [2021-11-07 15:29:57,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9136 states, 8582 states have (on average 1.3556280587275693) internal successors, (11634), 8664 states have internal predecessors, (11634), 362 states have call successors, (362), 139 states have call predecessors, (362), 139 states have return successors, (500), 339 states have call predecessors, (500), 362 states have call successors, (500) [2021-11-07 15:29:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9136 states to 9136 states and 12496 transitions. [2021-11-07 15:29:57,671 INFO L78 Accepts]: Start accepts. Automaton has 9136 states and 12496 transitions. Word has length 98 [2021-11-07 15:29:57,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:29:57,672 INFO L470 AbstractCegarLoop]: Abstraction has 9136 states and 12496 transitions. [2021-11-07 15:29:57,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:57,673 INFO L276 IsEmpty]: Start isEmpty. Operand 9136 states and 12496 transitions. [2021-11-07 15:29:57,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-07 15:29:57,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:29:57,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:29:57,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:29:57,675 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:29:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:29:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1351220361, now seen corresponding path program 1 times [2021-11-07 15:29:57,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:29:57,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895004942] [2021-11-07 15:29:57,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:29:57,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:29:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:29:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:29:58,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:29:58,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895004942] [2021-11-07 15:29:58,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895004942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:29:58,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:29:58,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:29:58,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069270988] [2021-11-07 15:29:58,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:29:58,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:29:58,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:29:58,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:29:58,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:29:58,088 INFO L87 Difference]: Start difference. First operand 9136 states and 12496 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:29:58,479 INFO L93 Difference]: Finished difference Result 26232 states and 36121 transitions. [2021-11-07 15:29:58,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:29:58,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-07 15:29:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:29:58,575 INFO L225 Difference]: With dead ends: 26232 [2021-11-07 15:29:58,575 INFO L226 Difference]: Without dead ends: 17180 [2021-11-07 15:29:58,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:29:58,622 INFO L933 BasicCegarLoop]: 4462 mSDtfsCounter, 3417 mSDsluCounter, 3504 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3417 SdHoareTripleChecker+Valid, 7966 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.30ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.90ms IncrementalHoareTripleChecker+Time [2021-11-07 15:29:58,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3417 Valid, 7966 Invalid, 34 Unknown, 0 Unchecked, 11.30ms Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 132.90ms Time] [2021-11-07 15:29:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17180 states. [2021-11-07 15:29:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17180 to 16956. [2021-11-07 15:29:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16956 states, 15945 states have (on average 1.359799310128567) internal successors, (21682), 16049 states have internal predecessors, (21682), 688 states have call successors, (688), 266 states have call predecessors, (688), 270 states have return successors, (1148), 654 states have call predecessors, (1148), 688 states have call successors, (1148) [2021-11-07 15:29:59,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16956 states to 16956 states and 23518 transitions. [2021-11-07 15:29:59,021 INFO L78 Accepts]: Start accepts. Automaton has 16956 states and 23518 transitions. Word has length 103 [2021-11-07 15:29:59,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:29:59,022 INFO L470 AbstractCegarLoop]: Abstraction has 16956 states and 23518 transitions. [2021-11-07 15:29:59,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:29:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 16956 states and 23518 transitions. [2021-11-07 15:29:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-07 15:29:59,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:29:59,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:29:59,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:29:59,025 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:29:59,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:29:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1042989265, now seen corresponding path program 1 times [2021-11-07 15:29:59,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:29:59,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738603632] [2021-11-07 15:29:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:29:59,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:29:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:29:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:29:59,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:29:59,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738603632] [2021-11-07 15:29:59,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738603632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:29:59,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:29:59,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:29:59,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836938492] [2021-11-07 15:29:59,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:29:59,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:29:59,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:29:59,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:29:59,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:29:59,380 INFO L87 Difference]: Start difference. First operand 16956 states and 23518 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:01,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:30:02,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:02,151 INFO L93 Difference]: Finished difference Result 49737 states and 69174 transitions. [2021-11-07 15:30:02,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:30:02,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-07 15:30:02,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:02,466 INFO L225 Difference]: With dead ends: 49737 [2021-11-07 15:30:02,466 INFO L226 Difference]: Without dead ends: 32865 [2021-11-07 15:30:02,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:02,511 INFO L933 BasicCegarLoop]: 4424 mSDtfsCounter, 3436 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2100.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 7838 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.26ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2236.90ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:02,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3436 Valid, 7838 Invalid, 15 Unknown, 0 Unchecked, 11.26ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2236.90ms Time] [2021-11-07 15:30:02,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32865 states. [2021-11-07 15:30:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32865 to 32781. [2021-11-07 15:30:03,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32781 states, 30812 states have (on average 1.3635596520836037) internal successors, (42014), 30968 states have internal predecessors, (42014), 1376 states have call successors, (1376), 532 states have call predecessors, (1376), 540 states have return successors, (2296), 1308 states have call predecessors, (2296), 1376 states have call successors, (2296) [2021-11-07 15:30:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32781 states to 32781 states and 45686 transitions. [2021-11-07 15:30:03,204 INFO L78 Accepts]: Start accepts. Automaton has 32781 states and 45686 transitions. Word has length 103 [2021-11-07 15:30:03,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:03,205 INFO L470 AbstractCegarLoop]: Abstraction has 32781 states and 45686 transitions. [2021-11-07 15:30:03,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:03,205 INFO L276 IsEmpty]: Start isEmpty. Operand 32781 states and 45686 transitions. [2021-11-07 15:30:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 15:30:03,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:03,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:03,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:30:03,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:03,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:03,209 INFO L85 PathProgramCache]: Analyzing trace with hash -480392852, now seen corresponding path program 1 times [2021-11-07 15:30:03,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:03,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466221097] [2021-11-07 15:30:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:03,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:03,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:03,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466221097] [2021-11-07 15:30:03,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466221097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:03,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:03,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:30:03,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281105099] [2021-11-07 15:30:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:03,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:30:03,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:03,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:30:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:03,559 INFO L87 Difference]: Start difference. First operand 32781 states and 45686 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:05,036 INFO L93 Difference]: Finished difference Result 94753 states and 134594 transitions. [2021-11-07 15:30:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:30:05,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-07 15:30:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:05,340 INFO L225 Difference]: With dead ends: 94753 [2021-11-07 15:30:05,341 INFO L226 Difference]: Without dead ends: 62056 [2021-11-07 15:30:05,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:05,535 INFO L933 BasicCegarLoop]: 4079 mSDtfsCounter, 3383 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3383 SdHoareTripleChecker+Valid, 7411 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.60ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.32ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:05,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3383 Valid, 7411 Invalid, 106 Unknown, 0 Unchecked, 8.60ms Time], IncrementalHoareTripleChecker [41 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 106.32ms Time] [2021-11-07 15:30:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62056 states. [2021-11-07 15:30:07,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62056 to 61795. [2021-11-07 15:30:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61795 states, 58056 states have (on average 1.3647857241284278) internal successors, (79234), 58374 states have internal predecessors, (79234), 2638 states have call successors, (2638), 1058 states have call predecessors, (2638), 1048 states have return successors, (5684), 2418 states have call predecessors, (5684), 2638 states have call successors, (5684) [2021-11-07 15:30:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61795 states to 61795 states and 87556 transitions. [2021-11-07 15:30:07,529 INFO L78 Accepts]: Start accepts. Automaton has 61795 states and 87556 transitions. Word has length 110 [2021-11-07 15:30:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:07,530 INFO L470 AbstractCegarLoop]: Abstraction has 61795 states and 87556 transitions. [2021-11-07 15:30:07,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 61795 states and 87556 transitions. [2021-11-07 15:30:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-07 15:30:07,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:07,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:07,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:30:07,532 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:07,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:07,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2007263563, now seen corresponding path program 1 times [2021-11-07 15:30:07,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:07,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001797323] [2021-11-07 15:30:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:07,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:08,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:08,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001797323] [2021-11-07 15:30:08,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001797323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:08,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:08,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:30:08,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678793773] [2021-11-07 15:30:08,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:08,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:30:08,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:08,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:30:08,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:08,177 INFO L87 Difference]: Start difference. First operand 61795 states and 87556 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:09,223 INFO L93 Difference]: Finished difference Result 61795 states and 87556 transitions. [2021-11-07 15:30:09,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:30:09,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-07 15:30:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:09,449 INFO L225 Difference]: With dead ends: 61795 [2021-11-07 15:30:09,450 INFO L226 Difference]: Without dead ends: 61793 [2021-11-07 15:30:09,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:09,490 INFO L933 BasicCegarLoop]: 3632 mSDtfsCounter, 3524 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3524 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.66ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:09,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3524 Valid, 3632 Invalid, 1 Unknown, 0 Unchecked, 4.74ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.66ms Time] [2021-11-07 15:30:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61793 states. [2021-11-07 15:30:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61793 to 61793. [2021-11-07 15:30:10,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61793 states, 58055 states have (on average 1.3647747825338041) internal successors, (79232), 58372 states have internal predecessors, (79232), 2638 states have call successors, (2638), 1058 states have call predecessors, (2638), 1048 states have return successors, (5684), 2418 states have call predecessors, (5684), 2638 states have call successors, (5684) [2021-11-07 15:30:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61793 states to 61793 states and 87554 transitions. [2021-11-07 15:30:11,262 INFO L78 Accepts]: Start accepts. Automaton has 61793 states and 87554 transitions. Word has length 111 [2021-11-07 15:30:11,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:11,262 INFO L470 AbstractCegarLoop]: Abstraction has 61793 states and 87554 transitions. [2021-11-07 15:30:11,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 61793 states and 87554 transitions. [2021-11-07 15:30:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 15:30:11,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:11,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:11,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 15:30:11,265 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:11,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:11,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2095615338, now seen corresponding path program 1 times [2021-11-07 15:30:11,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:11,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181162174] [2021-11-07 15:30:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:11,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:11,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:11,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181162174] [2021-11-07 15:30:11,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181162174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:11,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:11,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:30:11,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672624347] [2021-11-07 15:30:11,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:11,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:30:11,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:11,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:30:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:11,711 INFO L87 Difference]: Start difference. First operand 61793 states and 87554 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:12,713 INFO L93 Difference]: Finished difference Result 61793 states and 87554 transitions. [2021-11-07 15:30:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:30:12,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-07 15:30:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:13,031 INFO L225 Difference]: With dead ends: 61793 [2021-11-07 15:30:13,032 INFO L226 Difference]: Without dead ends: 61791 [2021-11-07 15:30:13,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:13,057 INFO L933 BasicCegarLoop]: 3630 mSDtfsCounter, 3521 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3521 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.59ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:13,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3521 Valid, 3630 Invalid, 1 Unknown, 0 Unchecked, 4.75ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.59ms Time] [2021-11-07 15:30:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61791 states. [2021-11-07 15:30:14,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61791 to 61791. [2021-11-07 15:30:14,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61791 states, 58054 states have (on average 1.364763840562235) internal successors, (79230), 58370 states have internal predecessors, (79230), 2638 states have call successors, (2638), 1058 states have call predecessors, (2638), 1048 states have return successors, (5684), 2418 states have call predecessors, (5684), 2638 states have call successors, (5684) [2021-11-07 15:30:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61791 states to 61791 states and 87552 transitions. [2021-11-07 15:30:14,862 INFO L78 Accepts]: Start accepts. Automaton has 61791 states and 87552 transitions. Word has length 112 [2021-11-07 15:30:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:14,863 INFO L470 AbstractCegarLoop]: Abstraction has 61791 states and 87552 transitions. [2021-11-07 15:30:14,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:14,864 INFO L276 IsEmpty]: Start isEmpty. Operand 61791 states and 87552 transitions. [2021-11-07 15:30:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 15:30:14,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:14,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:14,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 15:30:14,872 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:14,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:14,874 INFO L85 PathProgramCache]: Analyzing trace with hash -539553057, now seen corresponding path program 1 times [2021-11-07 15:30:14,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:14,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890866901] [2021-11-07 15:30:14,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:14,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:15,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:15,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890866901] [2021-11-07 15:30:15,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890866901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:15,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:15,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:30:15,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381947946] [2021-11-07 15:30:15,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:15,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:30:15,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:30:15,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:15,183 INFO L87 Difference]: Start difference. First operand 61791 states and 87552 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:16,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:16,148 INFO L93 Difference]: Finished difference Result 61791 states and 87552 transitions. [2021-11-07 15:30:16,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:30:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-07 15:30:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:16,357 INFO L225 Difference]: With dead ends: 61791 [2021-11-07 15:30:16,357 INFO L226 Difference]: Without dead ends: 61789 [2021-11-07 15:30:16,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:16,398 INFO L933 BasicCegarLoop]: 3628 mSDtfsCounter, 3518 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.19ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:16,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3518 Valid, 3628 Invalid, 1 Unknown, 0 Unchecked, 4.78ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.19ms Time] [2021-11-07 15:30:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61789 states. [2021-11-07 15:30:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61789 to 61789. [2021-11-07 15:30:17,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61789 states, 58053 states have (on average 1.3647528982137014) internal successors, (79228), 58368 states have internal predecessors, (79228), 2638 states have call successors, (2638), 1058 states have call predecessors, (2638), 1048 states have return successors, (5684), 2418 states have call predecessors, (5684), 2638 states have call successors, (5684) [2021-11-07 15:30:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61789 states to 61789 states and 87550 transitions. [2021-11-07 15:30:18,199 INFO L78 Accepts]: Start accepts. Automaton has 61789 states and 87550 transitions. Word has length 113 [2021-11-07 15:30:18,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:18,200 INFO L470 AbstractCegarLoop]: Abstraction has 61789 states and 87550 transitions. [2021-11-07 15:30:18,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:18,200 INFO L276 IsEmpty]: Start isEmpty. Operand 61789 states and 87550 transitions. [2021-11-07 15:30:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 15:30:18,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:18,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:18,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 15:30:18,202 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:18,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:18,203 INFO L85 PathProgramCache]: Analyzing trace with hash 453737408, now seen corresponding path program 1 times [2021-11-07 15:30:18,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:18,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501601587] [2021-11-07 15:30:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:18,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:18,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:18,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501601587] [2021-11-07 15:30:18,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501601587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:18,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:18,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:30:18,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752027969] [2021-11-07 15:30:18,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:18,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:30:18,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:18,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:30:18,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:18,520 INFO L87 Difference]: Start difference. First operand 61789 states and 87550 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:19,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:19,843 INFO L93 Difference]: Finished difference Result 61789 states and 87550 transitions. [2021-11-07 15:30:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:30:19,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-07 15:30:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:20,074 INFO L225 Difference]: With dead ends: 61789 [2021-11-07 15:30:20,074 INFO L226 Difference]: Without dead ends: 61752 [2021-11-07 15:30:20,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:20,120 INFO L933 BasicCegarLoop]: 3594 mSDtfsCounter, 2956 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 196.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.53ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 223.93ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:20,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 4078 Invalid, 75 Unknown, 0 Unchecked, 10.53ms Time], IncrementalHoareTripleChecker [25 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 223.93ms Time] [2021-11-07 15:30:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61752 states. [2021-11-07 15:30:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61752 to 61752. [2021-11-07 15:30:21,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61752 states, 58028 states have (on average 1.3610498380092368) internal successors, (78979), 58331 states have internal predecessors, (78979), 2638 states have call successors, (2638), 1058 states have call predecessors, (2638), 1048 states have return successors, (5684), 2418 states have call predecessors, (5684), 2638 states have call successors, (5684) [2021-11-07 15:30:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61752 states to 61752 states and 87301 transitions. [2021-11-07 15:30:21,991 INFO L78 Accepts]: Start accepts. Automaton has 61752 states and 87301 transitions. Word has length 114 [2021-11-07 15:30:21,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:21,992 INFO L470 AbstractCegarLoop]: Abstraction has 61752 states and 87301 transitions. [2021-11-07 15:30:21,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:21,992 INFO L276 IsEmpty]: Start isEmpty. Operand 61752 states and 87301 transitions. [2021-11-07 15:30:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 15:30:21,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:21,999 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:21,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 15:30:22,000 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting serial_port_activateErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:22,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:22,000 INFO L85 PathProgramCache]: Analyzing trace with hash -628065741, now seen corresponding path program 1 times [2021-11-07 15:30:22,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:22,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430109306] [2021-11-07 15:30:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:22,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-07 15:30:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:22,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:22,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430109306] [2021-11-07 15:30:22,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430109306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:22,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:22,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 15:30:22,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948212859] [2021-11-07 15:30:22,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:22,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 15:30:22,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:22,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 15:30:22,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 15:30:22,340 INFO L87 Difference]: Start difference. First operand 61752 states and 87301 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 15:30:24,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:30:26,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:30:32,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:30:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:44,051 INFO L93 Difference]: Finished difference Result 193710 states and 274953 transitions. [2021-11-07 15:30:44,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:30:44,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2021-11-07 15:30:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:44,637 INFO L225 Difference]: With dead ends: 193710 [2021-11-07 15:30:44,637 INFO L226 Difference]: Without dead ends: 132042 [2021-11-07 15:30:44,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:30:44,850 INFO L933 BasicCegarLoop]: 5191 mSDtfsCounter, 4261 mSDsluCounter, 5871 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 299 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16889.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4290 SdHoareTripleChecker+Valid, 11062 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.46ms SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17963.68ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:44,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4290 Valid, 11062 Invalid, 3063 Unknown, 0 Unchecked, 40.46ms Time], IncrementalHoareTripleChecker [299 Valid, 2761 Invalid, 3 Unknown, 0 Unchecked, 17963.68ms Time] [2021-11-07 15:30:44,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132042 states. [2021-11-07 15:30:48,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132042 to 128678. [2021-11-07 15:30:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128678 states, 120512 states have (on average 1.3565537041954328) internal successors, (163481), 121163 states have internal predecessors, (163481), 5340 states have call successors, (5340), 2116 states have call predecessors, (5340), 2788 states have return successors, (14288), 5558 states have call predecessors, (14288), 5340 states have call successors, (14288) [2021-11-07 15:30:49,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128678 states to 128678 states and 183109 transitions. [2021-11-07 15:30:49,452 INFO L78 Accepts]: Start accepts. Automaton has 128678 states and 183109 transitions. Word has length 142 [2021-11-07 15:30:49,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:49,453 INFO L470 AbstractCegarLoop]: Abstraction has 128678 states and 183109 transitions. [2021-11-07 15:30:49,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 15:30:49,453 INFO L276 IsEmpty]: Start isEmpty. Operand 128678 states and 183109 transitions. [2021-11-07 15:30:49,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-07 15:30:49,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:49,456 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:49,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 15:30:49,457 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting usb_serial_probeErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1956909992, now seen corresponding path program 1 times [2021-11-07 15:30:49,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:49,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985036137] [2021-11-07 15:30:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:49,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:49,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:49,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985036137] [2021-11-07 15:30:49,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985036137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:49,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:49,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:30:49,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656741702] [2021-11-07 15:30:49,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:49,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:30:49,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:49,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:30:49,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:49,789 INFO L87 Difference]: Start difference. First operand 128678 states and 183109 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:52,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:30:52,761 INFO L93 Difference]: Finished difference Result 195053 states and 277278 transitions. [2021-11-07 15:30:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:30:52,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-07 15:30:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:30:53,274 INFO L225 Difference]: With dead ends: 195053 [2021-11-07 15:30:53,274 INFO L226 Difference]: Without dead ends: 66459 [2021-11-07 15:30:53,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:53,757 INFO L933 BasicCegarLoop]: 3601 mSDtfsCounter, 3596 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 3603 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.15ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.35ms IncrementalHoareTripleChecker+Time [2021-11-07 15:30:53,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 3603 Invalid, 4 Unknown, 0 Unchecked, 5.15ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 106.35ms Time] [2021-11-07 15:30:53,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66459 states. [2021-11-07 15:30:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66459 to 64165. [2021-11-07 15:30:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64165 states, 60052 states have (on average 1.3571404782521814) internal successors, (81499), 60393 states have internal predecessors, (81499), 2676 states have call successors, (2676), 1063 states have call predecessors, (2676), 1399 states have return successors, (7150), 2788 states have call predecessors, (7150), 2676 states have call successors, (7150) [2021-11-07 15:30:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64165 states to 64165 states and 91325 transitions. [2021-11-07 15:30:56,076 INFO L78 Accepts]: Start accepts. Automaton has 64165 states and 91325 transitions. Word has length 153 [2021-11-07 15:30:56,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:30:56,076 INFO L470 AbstractCegarLoop]: Abstraction has 64165 states and 91325 transitions. [2021-11-07 15:30:56,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 64165 states and 91325 transitions. [2021-11-07 15:30:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-07 15:30:56,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:30:56,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:30:56,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 15:30:56,079 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, serial_wait_until_sentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-07 15:30:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:30:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1925289297, now seen corresponding path program 1 times [2021-11-07 15:30:56,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:30:56,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386664837] [2021-11-07 15:30:56,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:30:56,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:30:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:30:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:30:56,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:30:56,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386664837] [2021-11-07 15:30:56,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386664837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:30:56,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:30:56,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:30:56,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380353863] [2021-11-07 15:30:56,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:30:56,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:30:56,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:30:56,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:30:56,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:30:56,524 INFO L87 Difference]: Start difference. First operand 64165 states and 91325 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:30:58,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []