/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:12:07,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:12:07,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:12:07,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:12:07,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:12:07,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:12:07,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:12:07,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:12:07,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:12:07,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:12:07,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:12:07,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:12:07,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:12:07,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:12:07,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:12:07,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:12:07,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:12:07,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:12:07,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:12:07,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:12:07,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:12:07,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:12:07,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:12:07,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:12:07,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:12:07,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:12:07,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:12:07,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:12:07,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:12:07,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:12:07,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:12:07,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:12:07,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:12:07,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:12:07,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:12:07,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:12:07,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:12:07,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:12:07,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:12:07,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:12:07,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:12:07,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:12:07,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:12:07,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:12:07,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:12:07,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:12:07,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:12:07,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:12:07,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:12:07,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:12:07,459 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:12:07,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:12:07,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:12:07,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:12:07,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:12:07,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:12:07,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:12:07,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:12:07,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:12:07,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:12:07,462 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:12:07,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:12:07,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:12:07,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:12:07,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:12:07,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:12:07,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:12:07,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:12:07,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:12:07,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:12:07,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:12:07,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:12:07,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:12:07,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:12:07,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:12:07,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:12:07,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:12:07,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:12:07,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:12:07,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:12:07,961 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:12:07,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-10-15 21:12:08,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/054f57d30/d12688e16d7a487cb602d5c8a7fd9b4a/FLAGeb88d168b [2022-10-15 21:12:09,153 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:12:09,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-10-15 21:12:09,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/054f57d30/d12688e16d7a487cb602d5c8a7fd9b4a/FLAGeb88d168b [2022-10-15 21:12:09,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/054f57d30/d12688e16d7a487cb602d5c8a7fd9b4a [2022-10-15 21:12:09,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:12:09,535 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:12:09,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:12:09,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:12:09,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:12:09,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:12:09" (1/1) ... [2022-10-15 21:12:09,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79da1c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:09, skipping insertion in model container [2022-10-15 21:12:09,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:12:09" (1/1) ... [2022-10-15 21:12:09,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:12:09,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:12:10,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-10-15 21:12:11,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:12:11,873 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:12:12,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-10-15 21:12:12,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:12:12,599 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:12:12,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12 WrapperNode [2022-10-15 21:12:12,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:12:12,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:12:12,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:12:12,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:12:12,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:12,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:12,879 INFO L138 Inliner]: procedures = 201, calls = 1494, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2664 [2022-10-15 21:12:12,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:12:12,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:12:12,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:12:12,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:12:12,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:12,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:12,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:12,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:13,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:13,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:13,117 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:13,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:13,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:12:13,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:12:13,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:12:13,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:12:13,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (1/1) ... [2022-10-15 21:12:13,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:12:13,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:12:13,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:12:13,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:12:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-15 21:12:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-15 21:12:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-10-15 21:12:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-10-15 21:12:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2022-10-15 21:12:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2022-10-15 21:12:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:12:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:12:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:12:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:12:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-10-15 21:12:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-10-15 21:12:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-10-15 21:12:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-10-15 21:12:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-15 21:12:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-15 21:12:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-10-15 21:12:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-10-15 21:12:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:12:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:12:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2022-10-15 21:12:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2022-10-15 21:12:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-15 21:12:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-15 21:12:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-10-15 21:12:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-10-15 21:12:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-10-15 21:12:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-10-15 21:12:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:12:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:12:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:12:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:12:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:12:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:12:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:12:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:12:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-10-15 21:12:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-10-15 21:12:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-15 21:12:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-15 21:12:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:12:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:12:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2022-10-15 21:12:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2022-10-15 21:12:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:12:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-10-15 21:12:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-10-15 21:12:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:12:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:12:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:12:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:12:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:12:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2022-10-15 21:12:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2022-10-15 21:12:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-10-15 21:12:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-10-15 21:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-15 21:12:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-15 21:12:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-15 21:12:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-15 21:12:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2022-10-15 21:12:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2022-10-15 21:12:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:12:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:12:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:12:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:12:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-15 21:12:13,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-15 21:12:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-10-15 21:12:13,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-10-15 21:12:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:12:13,315 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:12:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-10-15 21:12:13,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-10-15 21:12:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-15 21:12:13,315 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-15 21:12:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-10-15 21:12:13,316 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-10-15 21:12:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-10-15 21:12:13,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-10-15 21:12:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-10-15 21:12:13,316 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-10-15 21:12:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:12:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:12:13,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:12:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-15 21:12:13,318 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-15 21:12:13,318 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:12:13,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:12:13,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:12:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-10-15 21:12:13,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-10-15 21:12:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2022-10-15 21:12:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2022-10-15 21:12:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-10-15 21:12:13,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-10-15 21:12:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-10-15 21:12:13,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-10-15 21:12:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-10-15 21:12:13,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-10-15 21:12:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-10-15 21:12:13,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-10-15 21:12:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:12:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:12:13,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:12:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:12:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:12:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:12:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:12:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:12:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:12:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-15 21:12:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-15 21:12:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-10-15 21:12:13,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-10-15 21:12:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:12:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-10-15 21:12:13,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-10-15 21:12:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-10-15 21:12:13,326 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-10-15 21:12:13,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:12:13,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:12:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-10-15 21:12:13,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-10-15 21:12:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-10-15 21:12:13,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-10-15 21:12:13,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:12:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:12:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 21:12:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 21:12:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:12:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:12:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:12:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-15 21:12:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-15 21:12:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2022-10-15 21:12:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2022-10-15 21:12:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-10-15 21:12:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-10-15 21:12:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:12:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:12:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-10-15 21:12:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-10-15 21:12:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2022-10-15 21:12:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2022-10-15 21:12:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-15 21:12:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-15 21:12:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:12:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:12:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:12:14,272 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:12:14,279 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:12:14,682 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:12:20,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-15 21:12:21,038 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:12:21,059 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:12:21,060 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:12:21,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:12:21 BoogieIcfgContainer [2022-10-15 21:12:21,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:12:21,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:12:21,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:12:21,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:12:21,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:12:09" (1/3) ... [2022-10-15 21:12:21,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d61fdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:12:21, skipping insertion in model container [2022-10-15 21:12:21,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:12" (2/3) ... [2022-10-15 21:12:21,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d61fdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:12:21, skipping insertion in model container [2022-10-15 21:12:21,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:12:21" (3/3) ... [2022-10-15 21:12:21,077 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-10-15 21:12:21,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:12:21,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2022-10-15 21:12:21,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:12:21,205 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a88190d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:12:21,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-10-15 21:12:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 1220 states, 848 states have (on average 1.3962264150943395) internal successors, (1184), 948 states have internal predecessors, (1184), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) [2022-10-15 21:12:21,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 21:12:21,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:12:21,236 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:12:21,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ttusb_dec_process_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_process_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_free_iso_urbsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:12:21,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:12:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1825786436, now seen corresponding path program 1 times [2022-10-15 21:12:21,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:12:21,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197342414] [2022-10-15 21:12:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:12:21,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:12:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:12:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:12:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:12:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:12:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:12:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:12:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:12:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:12:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 21:12:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:22,487 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 21:12:22,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:12:22,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197342414] [2022-10-15 21:12:22,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197342414] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:12:22,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:12:22,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:12:22,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394030323] [2022-10-15 21:12:22,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:12:22,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:12:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:12:22,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:12:22,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:12:22,564 INFO L87 Difference]: Start difference. First operand has 1220 states, 848 states have (on average 1.3962264150943395) internal successors, (1184), 948 states have internal predecessors, (1184), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:12:27,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:12:38,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:12:38,528 INFO L93 Difference]: Finished difference Result 3140 states and 4505 transitions. [2022-10-15 21:12:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 21:12:38,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2022-10-15 21:12:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:12:38,600 INFO L225 Difference]: With dead ends: 3140 [2022-10-15 21:12:38,600 INFO L226 Difference]: Without dead ends: 1872 [2022-10-15 21:12:38,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-15 21:12:38,622 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1605 mSDsluCounter, 4279 mSDsCounter, 0 mSdLazyCounter, 3730 mSolverCounterSat, 733 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 4464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 733 IncrementalHoareTripleChecker+Valid, 3730 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:12:38,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 5800 Invalid, 4464 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [733 Valid, 3730 Invalid, 1 Unknown, 0 Unchecked, 15.0s Time] [2022-10-15 21:12:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-10-15 21:12:38,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1302. [2022-10-15 21:12:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 921 states have (on average 1.3702497285559174) internal successors, (1262), 1003 states have internal predecessors, (1262), 237 states have call successors, (237), 76 states have call predecessors, (237), 76 states have return successors, (237), 229 states have call predecessors, (237), 237 states have call successors, (237) [2022-10-15 21:12:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1736 transitions. [2022-10-15 21:12:38,931 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1736 transitions. Word has length 65 [2022-10-15 21:12:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:12:38,934 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 1736 transitions. [2022-10-15 21:12:38,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:12:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1736 transitions. [2022-10-15 21:12:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 21:12:38,951 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:12:38,951 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:12:38,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:12:38,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ttusb_dec_send_commandErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ttusb_dec_process_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_process_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_free_iso_urbsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:12:38,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:12:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1701196720, now seen corresponding path program 1 times [2022-10-15 21:12:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:12:38,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094783187] [2022-10-15 21:12:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:12:38,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:12:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:12:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:12:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:12:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:12:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:12:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:12:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:12:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:12:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:12:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 21:12:39,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:12:39,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094783187] [2022-10-15 21:12:39,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094783187] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:12:39,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:12:39,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:12:39,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548404059] [2022-10-15 21:12:39,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:12:39,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:12:39,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:12:39,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:12:39,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:12:39,691 INFO L87 Difference]: Start difference. First operand 1302 states and 1736 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:12:43,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:12:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:12:55,866 INFO L93 Difference]: Finished difference Result 4407 states and 6079 transitions. [2022-10-15 21:12:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:12:55,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-10-15 21:12:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:12:55,895 INFO L225 Difference]: With dead ends: 4407 [2022-10-15 21:12:55,896 INFO L226 Difference]: Without dead ends: 3131 [2022-10-15 21:12:55,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:12:55,906 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 2673 mSDsluCounter, 4884 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 1207 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 4509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:12:55,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 7605 Invalid, 4509 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1207 Valid, 3301 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-10-15 21:12:55,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2022-10-15 21:12:56,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 2373. [2022-10-15 21:12:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 1728 states have (on average 1.3721064814814814) internal successors, (2371), 1825 states have internal predecessors, (2371), 436 states have call successors, (436), 141 states have call predecessors, (436), 141 states have return successors, (436), 420 states have call predecessors, (436), 436 states have call successors, (436) [2022-10-15 21:12:56,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3243 transitions. [2022-10-15 21:12:56,149 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3243 transitions. Word has length 73 [2022-10-15 21:12:56,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:12:56,149 INFO L495 AbstractCegarLoop]: Abstraction has 2373 states and 3243 transitions. [2022-10-15 21:12:56,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:12:56,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3243 transitions. [2022-10-15 21:12:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 21:12:56,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:12:56,152 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:12:56,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:12:56,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ttusb_dec_process_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_process_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_free_iso_urbsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 71 more)] === [2022-10-15 21:12:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:12:56,154 INFO L85 PathProgramCache]: Analyzing trace with hash -487200967, now seen corresponding path program 1 times [2022-10-15 21:12:56,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:12:56,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700432519] [2022-10-15 21:12:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:12:56,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:12:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:12:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:12:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:12:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:12:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:12:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:12:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:12:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 21:12:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:12:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 21:12:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:12:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-15 21:12:56,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:12:56,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700432519] [2022-10-15 21:12:56,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700432519] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:12:56,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:12:56,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:12:56,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205951145] [2022-10-15 21:12:56,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:12:56,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:12:56,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:12:56,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:12:56,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:12:56,782 INFO L87 Difference]: Start difference. First operand 2373 states and 3243 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-15 21:13:00,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []