/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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:59:44,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:59:44,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:59:44,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:59:44,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:59:44,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:59:44,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:59:44,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:59:44,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:59:44,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:59:44,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:59:44,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:59:44,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:59:44,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:59:44,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:59:44,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:59:44,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:59:44,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:59:44,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:59:44,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:59:44,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:59:44,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:59:44,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:59:44,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:59:44,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:59:44,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:59:44,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:59:44,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:59:44,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:59:44,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:59:44,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:59:44,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:59:44,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:59:44,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:59:44,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:59:44,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:59:44,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:59:44,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:59:44,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:59:44,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:59:44,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:59:44,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:59:44,147 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:59:44,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:59:44,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:59:44,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:59:44,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:59:44,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:59:44,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:59:44,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:59:44,152 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:59:44,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:59:44,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:59:44,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:59:44,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:59:44,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:59:44,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:59:44,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:59:44,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:59:44,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:59:44,154 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:59:44,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:59:44,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:59:44,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:59:44,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:59:44,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:59:44,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:59:44,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:59:44,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:59:44,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:59:44,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:59:44,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:59:44,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:59:44,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:59:44,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:59:44,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:59:44,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:59:44,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:59:44,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:59:44,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:59:44,577 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:59:44,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c [2022-10-16 13:59:44,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e7612a4/81dd5bac9ac24e52b87fc7bb52c5a88b/FLAGc4508904e [2022-10-16 13:59:45,802 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:59:45,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c [2022-10-16 13:59:45,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e7612a4/81dd5bac9ac24e52b87fc7bb52c5a88b/FLAGc4508904e [2022-10-16 13:59:46,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e7612a4/81dd5bac9ac24e52b87fc7bb52c5a88b [2022-10-16 13:59:46,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:59:46,149 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:59:46,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:59:46,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:59:46,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:59:46,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:46" (1/1) ... [2022-10-16 13:59:46,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be6987c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:46, skipping insertion in model container [2022-10-16 13:59:46,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:46" (1/1) ... [2022-10-16 13:59:46,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:59:46,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:59:49,323 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[275752,275765] [2022-10-16 13:59:49,328 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[276326,276339] [2022-10-16 13:59:49,337 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[277525,277538] [2022-10-16 13:59:49,345 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[278233,278246] [2022-10-16 13:59:49,352 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[278674,278687] [2022-10-16 13:59:49,356 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[278906,278919] [2022-10-16 13:59:49,369 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[279484,279497] [2022-10-16 13:59:49,374 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[280074,280087] [2022-10-16 13:59:49,379 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[280491,280504] [2022-10-16 13:59:49,384 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[280888,280901] [2022-10-16 13:59:49,389 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[281123,281136] [2022-10-16 13:59:49,396 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[281871,281884] [2022-10-16 13:59:49,401 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[282292,282305] [2022-10-16 13:59:49,405 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[282919,282932] [2022-10-16 13:59:49,409 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[283334,283347] [2022-10-16 13:59:49,414 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[283978,283991] [2022-10-16 13:59:49,419 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[284708,284721] [2022-10-16 13:59:49,423 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[285544,285557] [2022-10-16 13:59:49,429 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[286890,286903] [2022-10-16 13:59:49,434 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[287288,287301] [2022-10-16 13:59:49,438 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[287845,287858] [2022-10-16 13:59:49,442 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[288228,288241] [2022-10-16 13:59:49,447 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[288844,288857] [2022-10-16 13:59:49,451 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[289418,289431] [2022-10-16 13:59:49,456 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[290331,290344] [2022-10-16 13:59:49,461 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[290722,290735] [2022-10-16 13:59:49,465 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[290951,290964] [2022-10-16 13:59:49,470 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[291357,291370] [2022-10-16 13:59:49,476 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[292214,292227] [2022-10-16 13:59:49,482 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[292621,292634] [2022-10-16 13:59:49,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:59:49,540 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:59:49,995 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[275752,275765] [2022-10-16 13:59:49,996 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[276326,276339] [2022-10-16 13:59:49,998 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[277525,277538] [2022-10-16 13:59:49,999 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[278233,278246] [2022-10-16 13:59:50,001 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[278674,278687] [2022-10-16 13:59:50,002 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[278906,278919] [2022-10-16 13:59:50,003 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[279484,279497] [2022-10-16 13:59:50,004 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[280074,280087] [2022-10-16 13:59:50,007 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[280491,280504] [2022-10-16 13:59:50,008 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[280888,280901] [2022-10-16 13:59:50,009 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[281123,281136] [2022-10-16 13:59:50,010 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[281871,281884] [2022-10-16 13:59:50,011 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[282292,282305] [2022-10-16 13:59:50,012 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[282919,282932] [2022-10-16 13:59:50,013 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[283334,283347] [2022-10-16 13:59:50,014 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[283978,283991] [2022-10-16 13:59:50,014 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[284708,284721] [2022-10-16 13:59:50,015 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[285544,285557] [2022-10-16 13:59:50,017 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[286890,286903] [2022-10-16 13:59:50,018 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[287288,287301] [2022-10-16 13:59:50,019 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[287845,287858] [2022-10-16 13:59:50,019 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[288228,288241] [2022-10-16 13:59:50,020 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[288844,288857] [2022-10-16 13:59:50,021 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[289418,289431] [2022-10-16 13:59:50,022 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[290331,290344] [2022-10-16 13:59:50,025 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[290722,290735] [2022-10-16 13:59:50,026 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[290951,290964] [2022-10-16 13:59:50,026 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[291357,291370] [2022-10-16 13:59:50,027 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[292214,292227] [2022-10-16 13:59:50,028 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-multiproperty/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c[292621,292634] [2022-10-16 13:59:50,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:59:50,312 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:59:50,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50 WrapperNode [2022-10-16 13:59:50,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:59:50,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:59:50,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:59:50,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:59:50,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,611 INFO L138 Inliner]: procedures = 552, calls = 1413, calls flagged for inlining = 210, calls inlined = 123, statements flattened = 2379 [2022-10-16 13:59:50,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:59:50,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:59:50,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:59:50,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:59:50,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,850 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:59:50,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:59:50,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:59:50,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:59:50,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (1/1) ... [2022-10-16 13:59:50,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:59:50,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:59:50,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:59:50,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:59:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-10-16 13:59:51,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-10-16 13:59:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_net_sock [2022-10-16 13:59:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_net_sock [2022-10-16 13:59:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:59:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:59:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-10-16 13:59:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-10-16 13:59:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-10-16 13:59:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-16 13:59:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-16 13:59:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_arch_io [2022-10-16 13:59:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_arch_io [2022-10-16 13:59:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-10-16 13:59:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-10-16 13:59:51,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-10-16 13:59:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-10-16 13:59:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-10-16 13:59:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_read_buffer_lock_of_lego_usb_tower [2022-10-16 13:59:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_read_buffer_lock_of_lego_usb_tower [2022-10-16 13:59:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2022-10-16 13:59:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-16 13:59:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-16 13:59:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-16 13:59:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-16 13:59:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-10-16 13:59:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-10-16 13:59:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_alloc_irq [2022-10-16 13:59:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_alloc_irq [2022-10-16 13:59:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:59:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock [2022-10-16 13:59:51,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock [2022-10-16 13:59:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 13:59:51,049 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 13:59:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-10-16 13:59:51,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-10-16 13:59:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-16 13:59:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 13:59:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 13:59:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:59:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-10-16 13:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-10-16 13:59:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-10-16 13:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-10-16 13:59:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-10-16 13:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-10-16 13:59:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:59:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-10-16 13:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-10-16 13:59:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-10-16 13:59:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_queue [2022-10-16 13:59:51,053 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_queue [2022-10-16 13:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-10-16 13:59:51,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-10-16 13:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-16 13:59:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:59:51,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:59:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_locking_mutex [2022-10-16 13:59:51,055 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_locking_mutex [2022-10-16 13:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-10-16 13:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-10-16 13:59:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-10-16 13:59:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_disc_mutex [2022-10-16 13:59:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_disc_mutex [2022-10-16 13:59:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_locking_spinlock [2022-10-16 13:59:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_locking_spinlock [2022-10-16 13:59:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_lego_usb_tower [2022-10-16 13:59:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_lego_usb_tower [2022-10-16 13:59:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-10-16 13:59:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-10-16 13:59:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_genhd [2022-10-16 13:59:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_genhd [2022-10-16 13:59:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:59:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock_sched [2022-10-16 13:59:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock_sched [2022-10-16 13:59:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:59:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 13:59:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 13:59:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:59:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-16 13:59:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:59:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:59:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-16 13:59:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-10-16 13:59:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-10-16 13:59:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-10-16 13:59:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-10-16 13:59:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-10-16 13:59:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-16 13:59:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_disc_mutex [2022-10-16 13:59:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_disc_mutex [2022-10-16 13:59:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-10-16 13:59:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2022-10-16 13:59:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-16 13:59:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:59:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:59:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-16 13:59:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-16 13:59:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure tower_disconnect [2022-10-16 13:59:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_disconnect [2022-10-16 13:59:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock_bh [2022-10-16 13:59:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock_bh [2022-10-16 13:59:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-16 13:59:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-16 13:59:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-10-16 13:59:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-10-16 13:59:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:59:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:59:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2022-10-16 13:59:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_alloc_usb_lock [2022-10-16 13:59:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_alloc_usb_lock [2022-10-16 13:59:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-10-16 13:59:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-10-16 13:59:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-10-16 13:59:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-10-16 13:59:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-10-16 13:59:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-10-16 13:59:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_fs_sysfs [2022-10-16 13:59:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_fs_sysfs [2022-10-16 13:59:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-10-16 13:59:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-10-16 13:59:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_lego_usb_tower [2022-10-16 13:59:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_lego_usb_tower [2022-10-16 13:59:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:59:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 13:59:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 13:59:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-10-16 13:59:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-10-16 13:59:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:59:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_coherent [2022-10-16 13:59:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_coherent [2022-10-16 13:59:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_locking_rwlock [2022-10-16 13:59:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_locking_rwlock [2022-10-16 13:59:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:59:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 13:59:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-10-16 13:59:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_drivers_base_class [2022-10-16 13:59:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_drivers_base_class [2022-10-16 13:59:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-16 13:59:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_module [2022-10-16 13:59:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_module [2022-10-16 13:59:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-10-16 13:59:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-10-16 13:59:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-16 13:59:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-16 13:59:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-16 13:59:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-16 13:59:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_lock_of_lego_usb_tower [2022-10-16 13:59:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_lock_of_lego_usb_tower [2022-10-16 13:59:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-10-16 13:59:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-10-16 13:59:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-10-16 13:59:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-10-16 13:59:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-10-16 13:59:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-10-16 13:59:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-10-16 13:59:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-10-16 13:59:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-10-16 13:59:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-10-16 13:59:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-10-16 13:59:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_fs_char_dev [2022-10-16 13:59:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_fs_char_dev [2022-10-16 13:59:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-16 13:59:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-16 13:59:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_gadget [2022-10-16 13:59:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_gadget [2022-10-16 13:59:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-10-16 13:59:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-10-16 13:59:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-10-16 13:59:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-10-16 13:59:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_read_buffer_lock_of_lego_usb_tower [2022-10-16 13:59:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_read_buffer_lock_of_lego_usb_tower [2022-10-16 13:59:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:59:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_net_rtnetlink [2022-10-16 13:59:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_net_rtnetlink [2022-10-16 13:59:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-10-16 13:59:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-10-16 13:59:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure tower_delete [2022-10-16 13:59:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_delete [2022-10-16 13:59:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:59:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-10-16 13:59:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-10-16 13:59:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:59:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:59:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_request [2022-10-16 13:59:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_request [2022-10-16 13:59:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-10-16 13:59:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-10-16 13:59:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_lib_idr [2022-10-16 13:59:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_lib_idr [2022-10-16 13:59:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_urb [2022-10-16 13:59:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_urb [2022-10-16 13:59:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-16 13:59:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2022-10-16 13:59:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-16 13:59:51,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-16 13:59:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-10-16 13:59:51,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-10-16 13:59:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_mmc_sdio_func [2022-10-16 13:59:51,131 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_mmc_sdio_func [2022-10-16 13:59:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2022-10-16 13:59:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2022-10-16 13:59:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure tower_check_for_read_packet [2022-10-16 13:59:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_check_for_read_packet [2022-10-16 13:59:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:59:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_srcu [2022-10-16 13:59:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_srcu [2022-10-16 13:59:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure tower_abort_transfers [2022-10-16 13:59:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_abort_transfers [2022-10-16 13:59:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-10-16 13:59:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-10-16 13:59:51,749 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:59:51,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:59:55,926 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:59:55,945 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:59:55,946 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:59:55,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:55 BoogieIcfgContainer [2022-10-16 13:59:55,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:59:55,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:59:55,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:59:55,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:59:55,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:59:46" (1/3) ... [2022-10-16 13:59:55,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572ade85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:55, skipping insertion in model container [2022-10-16 13:59:55,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:50" (2/3) ... [2022-10-16 13:59:55,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572ade85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:55, skipping insertion in model container [2022-10-16 13:59:55,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:55" (3/3) ... [2022-10-16 13:59:55,961 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.c [2022-10-16 13:59:55,985 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:59:55,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-10-16 13:59:56,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:59:56,110 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;@3091849c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:59:56,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-10-16 13:59:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 993 states, 639 states have (on average 1.295774647887324) internal successors, (828), 712 states have internal predecessors, (828), 237 states have call successors, (237), 86 states have call predecessors, (237), 86 states have return successors, (237), 231 states have call predecessors, (237), 237 states have call successors, (237) [2022-10-16 13:59:56,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 13:59:56,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:59:56,177 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:59:56,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 13:59:56,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:59:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash 838880129, now seen corresponding path program 1 times [2022-10-16 13:59:56,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:59:56,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134593978] [2022-10-16 13:59:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:59:56,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:59:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:59:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:56,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:59:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:56,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:59:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:59:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:59:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:59:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:59:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:59:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:59:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:59:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:59:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:59:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:59:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 13:59:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 13:59:57,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:59:57,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134593978] [2022-10-16 13:59:57,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134593978] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:59:57,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:59:57,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:59:57,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638101056] [2022-10-16 13:59:57,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:59:57,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:59:57,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:59:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:59:57,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:59:57,438 INFO L87 Difference]: Start difference. First operand has 993 states, 639 states have (on average 1.295774647887324) internal successors, (828), 712 states have internal predecessors, (828), 237 states have call successors, (237), 86 states have call predecessors, (237), 86 states have return successors, (237), 231 states have call predecessors, (237), 237 states have call successors, (237) Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 14:00:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:00,202 INFO L93 Difference]: Finished difference Result 1944 states and 2734 transitions. [2022-10-16 14:00:00,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:00:00,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 188 [2022-10-16 14:00:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:00,228 INFO L225 Difference]: With dead ends: 1944 [2022-10-16 14:00:00,228 INFO L226 Difference]: Without dead ends: 739 [2022-10-16 14:00:00,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:00:00,255 INFO L413 NwaCegarLoop]: 1173 mSDtfsCounter, 933 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:00,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 2525 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [831 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 14:00:00,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-10-16 14:00:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 726. [2022-10-16 14:00:00,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 492 states have (on average 1.298780487804878) internal successors, (639), 533 states have internal predecessors, (639), 164 states have call successors, (164), 42 states have call predecessors, (164), 42 states have return successors, (164), 159 states have call predecessors, (164), 164 states have call successors, (164) [2022-10-16 14:00:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 967 transitions. [2022-10-16 14:00:00,427 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 967 transitions. Word has length 188 [2022-10-16 14:00:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:00,427 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 967 transitions. [2022-10-16 14:00:00,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 14:00:00,428 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 967 transitions. [2022-10-16 14:00:00,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 14:00:00,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:00,434 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:00:00,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:00:00,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:00,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:00,435 INFO L85 PathProgramCache]: Analyzing trace with hash -630760575, now seen corresponding path program 1 times [2022-10-16 14:00:00,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:00,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352205249] [2022-10-16 14:00:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:01,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:01,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352205249] [2022-10-16 14:00:01,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352205249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:01,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:00:01,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:00:01,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823643451] [2022-10-16 14:00:01,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:01,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:00:01,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:00:01,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:00:01,291 INFO L87 Difference]: Start difference. First operand 726 states and 967 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 14:00:04,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:00:06,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:06,360 INFO L93 Difference]: Finished difference Result 739 states and 986 transitions. [2022-10-16 14:00:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:00:06,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 188 [2022-10-16 14:00:06,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:06,369 INFO L225 Difference]: With dead ends: 739 [2022-10-16 14:00:06,369 INFO L226 Difference]: Without dead ends: 735 [2022-10-16 14:00:06,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:00:06,371 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 1347 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:06,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 2192 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-10-16 14:00:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-10-16 14:00:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 722. [2022-10-16 14:00:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 492 states have (on average 1.2906504065040652) internal successors, (635), 529 states have internal predecessors, (635), 164 states have call successors, (164), 42 states have call predecessors, (164), 42 states have return successors, (164), 159 states have call predecessors, (164), 164 states have call successors, (164) [2022-10-16 14:00:06,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 963 transitions. [2022-10-16 14:00:06,431 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 963 transitions. Word has length 188 [2022-10-16 14:00:06,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:06,433 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 963 transitions. [2022-10-16 14:00:06,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 14:00:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 963 transitions. [2022-10-16 14:00:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 14:00:06,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:06,438 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:00:06,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:00:06,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash -614330732, now seen corresponding path program 1 times [2022-10-16 14:00:06,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:06,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962252752] [2022-10-16 14:00:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:06,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:06,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:07,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:07,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962252752] [2022-10-16 14:00:07,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962252752] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:07,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:00:07,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:00:07,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484116594] [2022-10-16 14:00:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:07,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:00:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:07,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:00:07,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:00:07,281 INFO L87 Difference]: Start difference. First operand 722 states and 963 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 14:00:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:10,274 INFO L93 Difference]: Finished difference Result 1153 states and 1608 transitions. [2022-10-16 14:00:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:00:10,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 197 [2022-10-16 14:00:10,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:10,287 INFO L225 Difference]: With dead ends: 1153 [2022-10-16 14:00:10,287 INFO L226 Difference]: Without dead ends: 1151 [2022-10-16 14:00:10,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:00:10,290 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 996 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 4469 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:10,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 4469 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 14:00:10,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-10-16 14:00:10,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 731. [2022-10-16 14:00:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 501 states have (on average 1.2914171656686626) internal successors, (647), 538 states have internal predecessors, (647), 164 states have call successors, (164), 42 states have call predecessors, (164), 42 states have return successors, (164), 159 states have call predecessors, (164), 164 states have call successors, (164) [2022-10-16 14:00:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 975 transitions. [2022-10-16 14:00:10,401 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 975 transitions. Word has length 197 [2022-10-16 14:00:10,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:10,402 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 975 transitions. [2022-10-16 14:00:10,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 14:00:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 975 transitions. [2022-10-16 14:00:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-16 14:00:10,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:10,407 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 14:00:10,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:00:10,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:10,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1634974632, now seen corresponding path program 1 times [2022-10-16 14:00:10,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:10,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071030780] [2022-10-16 14:00:10,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:10,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:00:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:00:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 14:00:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 14:00:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 14:00:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 14:00:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 14:00:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 14:00:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 14:00:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 14:00:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 14:00:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 14:00:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 14:00:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 14:00:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 14:00:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-10-16 14:00:12,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:12,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071030780] [2022-10-16 14:00:12,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071030780] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:00:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591395997] [2022-10-16 14:00:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:12,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:12,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:00:12,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:00:12,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:00:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:13,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 14:00:13,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:00:13,821 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-10-16 14:00:13,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:00:13,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591395997] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:13,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:00:13,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [23] total 34 [2022-10-16 14:00:13,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228281187] [2022-10-16 14:00:13,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:13,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:00:13,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:13,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:00:13,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:00:13,826 INFO L87 Difference]: Start difference. First operand 731 states and 975 transitions. Second operand has 18 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 7 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2022-10-16 14:00:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:14,890 INFO L93 Difference]: Finished difference Result 1471 states and 1961 transitions. [2022-10-16 14:00:14,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 14:00:14,891 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 7 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) Word has length 199 [2022-10-16 14:00:14,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:14,897 INFO L225 Difference]: With dead ends: 1471 [2022-10-16 14:00:14,897 INFO L226 Difference]: Without dead ends: 728 [2022-10-16 14:00:14,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=252, Invalid=1818, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 14:00:14,903 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 68 mSDsluCounter, 14847 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 15783 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:14,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 15783 Invalid, 754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:00:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-10-16 14:00:14,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2022-10-16 14:00:14,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 501 states have (on average 1.2834331337325349) internal successors, (643), 535 states have internal predecessors, (643), 161 states have call successors, (161), 42 states have call predecessors, (161), 42 states have return successors, (161), 158 states have call predecessors, (161), 161 states have call successors, (161) [2022-10-16 14:00:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 965 transitions. [2022-10-16 14:00:14,971 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 965 transitions. Word has length 199 [2022-10-16 14:00:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:14,972 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 965 transitions. [2022-10-16 14:00:14,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 7 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2022-10-16 14:00:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 965 transitions. [2022-10-16 14:00:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-16 14:00:14,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:14,977 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 14:00:15,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:00:15,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:15,192 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:15,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1626975658, now seen corresponding path program 1 times [2022-10-16 14:00:15,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:15,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708795833] [2022-10-16 14:00:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:15,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:00:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:00:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 14:00:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 14:00:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 14:00:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 14:00:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 14:00:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 14:00:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:15,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 14:00:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 14:00:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 14:00:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 14:00:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 14:00:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 14:00:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 14:00:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-10-16 14:00:16,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:16,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708795833] [2022-10-16 14:00:16,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708795833] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:00:16,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62404735] [2022-10-16 14:00:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:16,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:16,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:00:16,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:00:16,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:00:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:16,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:00:16,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:00:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-10-16 14:00:16,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:00:16,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62404735] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:16,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:00:16,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 11 [2022-10-16 14:00:16,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137269145] [2022-10-16 14:00:16,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:16,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:00:16,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:16,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:00:16,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:00:16,906 INFO L87 Difference]: Start difference. First operand 728 states and 965 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-10-16 14:00:17,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:17,398 INFO L93 Difference]: Finished difference Result 1230 states and 1615 transitions. [2022-10-16 14:00:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:00:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 199 [2022-10-16 14:00:17,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:17,405 INFO L225 Difference]: With dead ends: 1230 [2022-10-16 14:00:17,405 INFO L226 Difference]: Without dead ends: 728 [2022-10-16 14:00:17,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:00:17,410 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 848 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:17,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 3544 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:00:17,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-10-16 14:00:17,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 726. [2022-10-16 14:00:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 500 states have (on average 1.282) internal successors, (641), 534 states have internal predecessors, (641), 160 states have call successors, (160), 42 states have call predecessors, (160), 42 states have return successors, (160), 157 states have call predecessors, (160), 160 states have call successors, (160) [2022-10-16 14:00:17,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 961 transitions. [2022-10-16 14:00:17,486 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 961 transitions. Word has length 199 [2022-10-16 14:00:17,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:17,487 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 961 transitions. [2022-10-16 14:00:17,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-10-16 14:00:17,488 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 961 transitions. [2022-10-16 14:00:17,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-10-16 14:00:17,492 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:17,493 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-10-16 14:00:17,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:00:17,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:17,707 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1903726167, now seen corresponding path program 1 times [2022-10-16 14:00:17,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:17,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662394421] [2022-10-16 14:00:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:17,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:18,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:18,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662394421] [2022-10-16 14:00:18,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662394421] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:00:18,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078293853] [2022-10-16 14:00:18,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:18,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:18,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:00:18,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:00:18,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:00:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:19,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:00:19,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:00:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:19,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:00:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:19,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078293853] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:00:19,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:00:19,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2022-10-16 14:00:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877386183] [2022-10-16 14:00:19,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:00:19,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:00:19,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:19,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:00:19,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:00:19,317 INFO L87 Difference]: Start difference. First operand 726 states and 961 transitions. Second operand has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 14:00:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:24,908 INFO L93 Difference]: Finished difference Result 2318 states and 3327 transitions. [2022-10-16 14:00:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:00:24,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 204 [2022-10-16 14:00:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:24,935 INFO L225 Difference]: With dead ends: 2318 [2022-10-16 14:00:24,935 INFO L226 Difference]: Without dead ends: 2317 [2022-10-16 14:00:24,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:00:24,938 INFO L413 NwaCegarLoop]: 1811 mSDtfsCounter, 2361 mSDsluCounter, 7185 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2801 SdHoareTripleChecker+Valid, 8996 SdHoareTripleChecker+Invalid, 5038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:24,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2801 Valid, 8996 Invalid, 5038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [765 Valid, 4273 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-10-16 14:00:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2022-10-16 14:00:25,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 725. [2022-10-16 14:00:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 500 states have (on average 1.28) internal successors, (640), 533 states have internal predecessors, (640), 160 states have call successors, (160), 42 states have call predecessors, (160), 42 states have return successors, (160), 157 states have call predecessors, (160), 160 states have call successors, (160) [2022-10-16 14:00:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 960 transitions. [2022-10-16 14:00:25,094 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 960 transitions. Word has length 204 [2022-10-16 14:00:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:25,097 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 960 transitions. [2022-10-16 14:00:25,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 14:00:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 960 transitions. [2022-10-16 14:00:25,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-16 14:00:25,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:25,101 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-10-16 14:00:25,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:00:25,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:25,316 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:25,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:25,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1114030226, now seen corresponding path program 1 times [2022-10-16 14:00:25,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:25,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89396104] [2022-10-16 14:00:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:25,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:25,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:25,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89396104] [2022-10-16 14:00:25,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89396104] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:00:25,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473462115] [2022-10-16 14:00:25,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:25,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:25,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:00:25,981 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:00:26,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:00:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:26,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 2189 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:00:26,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:00:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:26,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:00:26,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473462115] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:26,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:00:26,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-10-16 14:00:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946392710] [2022-10-16 14:00:26,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:26,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:00:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:00:26,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:00:26,702 INFO L87 Difference]: Start difference. First operand 725 states and 960 transitions. Second operand has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 14:00:27,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:27,668 INFO L93 Difference]: Finished difference Result 1485 states and 2079 transitions. [2022-10-16 14:00:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:00:27,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 205 [2022-10-16 14:00:27,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:27,684 INFO L225 Difference]: With dead ends: 1485 [2022-10-16 14:00:27,684 INFO L226 Difference]: Without dead ends: 1484 [2022-10-16 14:00:27,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:00:27,687 INFO L413 NwaCegarLoop]: 2039 mSDtfsCounter, 797 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:27,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 3490 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:00:27,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-10-16 14:00:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 715. [2022-10-16 14:00:27,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 491 states have (on average 1.2769857433808554) internal successors, (627), 523 states have internal predecessors, (627), 160 states have call successors, (160), 42 states have call predecessors, (160), 42 states have return successors, (160), 157 states have call predecessors, (160), 160 states have call successors, (160) [2022-10-16 14:00:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 947 transitions. [2022-10-16 14:00:27,796 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 947 transitions. Word has length 205 [2022-10-16 14:00:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:27,797 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 947 transitions. [2022-10-16 14:00:27,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 14:00:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 947 transitions. [2022-10-16 14:00:27,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-10-16 14:00:27,800 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:27,801 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:00:27,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:00:28,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:28,015 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:28,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2139918517, now seen corresponding path program 1 times [2022-10-16 14:00:28,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:28,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959275687] [2022-10-16 14:00:28,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:28,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 14:00:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:29,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:29,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959275687] [2022-10-16 14:00:29,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959275687] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:29,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:00:29,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:00:29,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198051231] [2022-10-16 14:00:29,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:29,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:00:29,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:29,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:00:29,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:00:29,139 INFO L87 Difference]: Start difference. First operand 715 states and 947 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 14:00:35,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:35,404 INFO L93 Difference]: Finished difference Result 1418 states and 1893 transitions. [2022-10-16 14:00:35,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 14:00:35,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 208 [2022-10-16 14:00:35,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:35,417 INFO L225 Difference]: With dead ends: 1418 [2022-10-16 14:00:35,417 INFO L226 Difference]: Without dead ends: 1414 [2022-10-16 14:00:35,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:00:35,420 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1825 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 1205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1205 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:35,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 5039 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1205 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-10-16 14:00:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-10-16 14:00:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1346. [2022-10-16 14:00:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 938 states have (on average 1.275053304904051) internal successors, (1196), 978 states have internal predecessors, (1196), 302 states have call successors, (302), 84 states have call predecessors, (302), 84 states have return successors, (310), 297 states have call predecessors, (310), 302 states have call successors, (310) [2022-10-16 14:00:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1808 transitions. [2022-10-16 14:00:35,628 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1808 transitions. Word has length 208 [2022-10-16 14:00:35,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:35,629 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1808 transitions. [2022-10-16 14:00:35,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 14:00:35,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1808 transitions. [2022-10-16 14:00:35,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-10-16 14:00:35,633 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:35,633 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-10-16 14:00:35,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:00:35,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:35,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:35,635 INFO L85 PathProgramCache]: Analyzing trace with hash -219219721, now seen corresponding path program 1 times [2022-10-16 14:00:35,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:35,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545045715] [2022-10-16 14:00:35,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:35,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 14:00:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-10-16 14:00:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:36,801 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:36,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:36,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545045715] [2022-10-16 14:00:36,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545045715] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:00:36,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054272522] [2022-10-16 14:00:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:36,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:36,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:00:36,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:00:36,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:00:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:37,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:00:37,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:00:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:37,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:00:37,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054272522] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:37,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:00:37,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12 [2022-10-16 14:00:37,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166444508] [2022-10-16 14:00:37,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:37,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:00:37,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:37,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:00:37,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:00:37,592 INFO L87 Difference]: Start difference. First operand 1346 states and 1808 transitions. Second operand has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 14:00:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:38,317 INFO L93 Difference]: Finished difference Result 1933 states and 2580 transitions. [2022-10-16 14:00:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:00:38,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 218 [2022-10-16 14:00:38,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:38,334 INFO L225 Difference]: With dead ends: 1933 [2022-10-16 14:00:38,335 INFO L226 Difference]: Without dead ends: 1932 [2022-10-16 14:00:38,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:00:38,338 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 1797 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:38,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 1694 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:00:38,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2022-10-16 14:00:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1910. [2022-10-16 14:00:38,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1343 states have (on average 1.2755026061057335) internal successors, (1713), 1389 states have internal predecessors, (1713), 423 states have call successors, (423), 123 states have call predecessors, (423), 123 states have return successors, (437), 416 states have call predecessors, (437), 423 states have call successors, (437) [2022-10-16 14:00:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2573 transitions. [2022-10-16 14:00:38,615 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2573 transitions. Word has length 218 [2022-10-16 14:00:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:38,615 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2573 transitions. [2022-10-16 14:00:38,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 14:00:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2573 transitions. [2022-10-16 14:00:38,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-10-16 14:00:38,619 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:38,620 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:00:38,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:00:38,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:38,836 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_usb_urb_usb_free_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:38,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1794123681, now seen corresponding path program 1 times [2022-10-16 14:00:38,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:38,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378120718] [2022-10-16 14:00:38,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:38,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 14:00:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-10-16 14:00:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:40,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:40,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378120718] [2022-10-16 14:00:40,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378120718] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:00:40,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026364912] [2022-10-16 14:00:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:40,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:40,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:00:40,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:00:40,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:00:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:40,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 2252 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:00:40,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:00:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:41,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:00:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-10-16 14:00:41,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026364912] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:00:41,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:00:41,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 5] total 17 [2022-10-16 14:00:41,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828552923] [2022-10-16 14:00:41,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:00:41,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:00:41,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:41,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:00:41,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:00:41,480 INFO L87 Difference]: Start difference. First operand 1910 states and 2573 transitions. Second operand has 18 states, 17 states have (on average 12.823529411764707) internal successors, (218), 13 states have internal predecessors, (218), 6 states have call successors, (66), 13 states have call predecessors, (66), 5 states have return successors, (60), 6 states have call predecessors, (60), 4 states have call successors, (60) [2022-10-16 14:00:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:00:56,842 INFO L93 Difference]: Finished difference Result 3757 states and 4971 transitions. [2022-10-16 14:00:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-10-16 14:00:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.823529411764707) internal successors, (218), 13 states have internal predecessors, (218), 6 states have call successors, (66), 13 states have call predecessors, (66), 5 states have return successors, (60), 6 states have call predecessors, (60), 4 states have call successors, (60) Word has length 219 [2022-10-16 14:00:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:00:56,869 INFO L225 Difference]: With dead ends: 3757 [2022-10-16 14:00:56,869 INFO L226 Difference]: Without dead ends: 3755 [2022-10-16 14:00:56,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 512 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1011, Invalid=3021, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 14:00:56,875 INFO L413 NwaCegarLoop]: 1862 mSDtfsCounter, 9637 mSDsluCounter, 8191 mSDsCounter, 0 mSdLazyCounter, 7004 mSolverCounterSat, 6536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10098 SdHoareTripleChecker+Valid, 10053 SdHoareTripleChecker+Invalid, 13540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6536 IncrementalHoareTripleChecker+Valid, 7004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:00:56,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10098 Valid, 10053 Invalid, 13540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6536 Valid, 7004 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-10-16 14:00:56,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-10-16 14:00:57,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3520. [2022-10-16 14:00:57,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 2502 states have (on average 1.2781774580335732) internal successors, (3198), 2569 states have internal predecessors, (3198), 748 states have call successors, (748), 232 states have call predecessors, (748), 250 states have return successors, (799), 748 states have call predecessors, (799), 748 states have call successors, (799) [2022-10-16 14:00:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4745 transitions. [2022-10-16 14:00:57,373 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4745 transitions. Word has length 219 [2022-10-16 14:00:57,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:00:57,374 INFO L495 AbstractCegarLoop]: Abstraction has 3520 states and 4745 transitions. [2022-10-16 14:00:57,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.823529411764707) internal successors, (218), 13 states have internal predecessors, (218), 6 states have call successors, (66), 13 states have call predecessors, (66), 5 states have return successors, (60), 6 states have call predecessors, (60), 4 states have call successors, (60) [2022-10-16 14:00:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4745 transitions. [2022-10-16 14:00:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-10-16 14:00:57,378 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:00:57,379 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:00:57,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:00:57,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:00:57,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:00:57,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:00:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1902943154, now seen corresponding path program 1 times [2022-10-16 14:00:57,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:00:57,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496555763] [2022-10-16 14:00:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:00:57,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:00:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:00:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:00:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:00:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:00:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:00:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:00:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:00:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:00:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:00:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:00:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:00:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:00:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:00:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:00:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:00:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:00:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 14:00:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 14:00:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 14:00:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 14:00:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 14:00:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-10-16 14:00:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-10-16 14:00:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 14:00:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 14:00:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-10-16 14:00:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-10-16 14:00:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 14:00:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-10-16 14:00:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:00:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:00:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-10-16 14:00:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:00:58,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496555763] [2022-10-16 14:00:58,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496555763] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:00:58,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:00:58,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:00:58,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533129555] [2022-10-16 14:00:58,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:00:58,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:00:58,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:00:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:00:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:00:58,339 INFO L87 Difference]: Start difference. First operand 3520 states and 4745 transitions. Second operand has 10 states, 9 states have (on average 12.666666666666666) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-10-16 14:01:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:03,993 INFO L93 Difference]: Finished difference Result 3663 states and 4989 transitions. [2022-10-16 14:01:03,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:01:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.666666666666666) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 298 [2022-10-16 14:01:03,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:04,017 INFO L225 Difference]: With dead ends: 3663 [2022-10-16 14:01:04,017 INFO L226 Difference]: Without dead ends: 3662 [2022-10-16 14:01:04,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:01:04,020 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 1161 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 1243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 4303 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:04,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 4303 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1243 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-10-16 14:01:04,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-10-16 14:01:04,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3519. [2022-10-16 14:01:04,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 2502 states have (on average 1.2741806554756194) internal successors, (3188), 2568 states have internal predecessors, (3188), 748 states have call successors, (748), 232 states have call predecessors, (748), 250 states have return successors, (799), 748 states have call predecessors, (799), 748 states have call successors, (799) [2022-10-16 14:01:04,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 4735 transitions. [2022-10-16 14:01:04,581 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 4735 transitions. Word has length 298 [2022-10-16 14:01:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:01:04,583 INFO L495 AbstractCegarLoop]: Abstraction has 3519 states and 4735 transitions. [2022-10-16 14:01:04,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.666666666666666) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-10-16 14:01:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 4735 transitions. [2022-10-16 14:01:04,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-10-16 14:01:04,590 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:01:04,590 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:01:04,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:01:04,591 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:01:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:01:04,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1138304304, now seen corresponding path program 1 times [2022-10-16 14:01:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:01:04,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323820542] [2022-10-16 14:01:04,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:04,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:01:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:04,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:01:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:04,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:01:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:01:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:04,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:01:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:04,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:01:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:04,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:01:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:01:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:01:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:01:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:01:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:01:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:01:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 14:01:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 14:01:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 14:01:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 14:01:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 14:01:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-10-16 14:01:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-10-16 14:01:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 14:01:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 14:01:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-10-16 14:01:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-10-16 14:01:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 14:01:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-10-16 14:01:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-10-16 14:01:05,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:01:05,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323820542] [2022-10-16 14:01:05,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323820542] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:01:05,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:01:05,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:01:05,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758444496] [2022-10-16 14:01:05,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:01:05,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:01:05,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:01:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:01:05,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:01:05,343 INFO L87 Difference]: Start difference. First operand 3519 states and 4735 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-10-16 14:01:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:10,096 INFO L93 Difference]: Finished difference Result 3662 states and 4979 transitions. [2022-10-16 14:01:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:01:10,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 299 [2022-10-16 14:01:10,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:10,125 INFO L225 Difference]: With dead ends: 3662 [2022-10-16 14:01:10,125 INFO L226 Difference]: Without dead ends: 3661 [2022-10-16 14:01:10,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:01:10,130 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 1348 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 1439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:10,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 3888 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1439 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-10-16 14:01:10,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2022-10-16 14:01:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3518. [2022-10-16 14:01:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3518 states, 2502 states have (on average 1.270183852917666) internal successors, (3178), 2567 states have internal predecessors, (3178), 748 states have call successors, (748), 232 states have call predecessors, (748), 250 states have return successors, (799), 748 states have call predecessors, (799), 748 states have call successors, (799) [2022-10-16 14:01:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 4725 transitions. [2022-10-16 14:01:10,674 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 4725 transitions. Word has length 299 [2022-10-16 14:01:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:01:10,675 INFO L495 AbstractCegarLoop]: Abstraction has 3518 states and 4725 transitions. [2022-10-16 14:01:10,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (40), 8 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-10-16 14:01:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 4725 transitions. [2022-10-16 14:01:10,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-10-16 14:01:10,687 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:01:10,688 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 14:01:10,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 14:01:10,688 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:01:10,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:01:10,689 INFO L85 PathProgramCache]: Analyzing trace with hash -280946195, now seen corresponding path program 1 times [2022-10-16 14:01:10,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:01:10,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744583297] [2022-10-16 14:01:10,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:01:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:01:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:01:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:01:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:01:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:01:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:01:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:01:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:01:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:01:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:01:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:01:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:01:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 14:01:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 14:01:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 14:01:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 14:01:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-10-16 14:01:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-10-16 14:01:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-10-16 14:01:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-10-16 14:01:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-10-16 14:01:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-10-16 14:01:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2022-10-16 14:01:12,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:01:12,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744583297] [2022-10-16 14:01:12,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744583297] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:01:12,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967873384] [2022-10-16 14:01:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:12,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:01:12,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:01:12,252 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:01:12,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:01:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:13,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2779 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:01:13,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:01:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 18 proven. 296 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-10-16 14:01:13,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:01:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2022-10-16 14:01:14,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967873384] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:01:14,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:01:14,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2022-10-16 14:01:14,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025810997] [2022-10-16 14:01:14,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:01:14,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:01:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:01:14,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:01:14,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:01:14,192 INFO L87 Difference]: Start difference. First operand 3518 states and 4725 transitions. Second operand has 16 states, 15 states have (on average 17.266666666666666) internal successors, (259), 12 states have internal predecessors, (259), 9 states have call successors, (96), 10 states have call predecessors, (96), 5 states have return successors, (93), 9 states have call predecessors, (93), 9 states have call successors, (93) [2022-10-16 14:01:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:22,665 INFO L93 Difference]: Finished difference Result 6371 states and 8489 transitions. [2022-10-16 14:01:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 14:01:22,666 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 17.266666666666666) internal successors, (259), 12 states have internal predecessors, (259), 9 states have call successors, (96), 10 states have call predecessors, (96), 5 states have return successors, (93), 9 states have call predecessors, (93), 9 states have call successors, (93) Word has length 382 [2022-10-16 14:01:22,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:22,709 INFO L225 Difference]: With dead ends: 6371 [2022-10-16 14:01:22,710 INFO L226 Difference]: Without dead ends: 6370 [2022-10-16 14:01:22,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 889 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=436, Invalid=970, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:01:22,716 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 7099 mSDsluCounter, 5104 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 4247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7476 SdHoareTripleChecker+Valid, 6518 SdHoareTripleChecker+Invalid, 8402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4247 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:22,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7476 Valid, 6518 Invalid, 8402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4247 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-10-16 14:01:22,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6370 states. [2022-10-16 14:01:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6370 to 6292. [2022-10-16 14:01:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 4497 states have (on average 1.270402490549255) internal successors, (5713), 4598 states have internal predecessors, (5713), 1323 states have call successors, (1323), 419 states have call predecessors, (1323), 455 states have return successors, (1412), 1326 states have call predecessors, (1412), 1323 states have call successors, (1412) [2022-10-16 14:01:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 8448 transitions. [2022-10-16 14:01:23,553 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 8448 transitions. Word has length 382 [2022-10-16 14:01:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:01:23,554 INFO L495 AbstractCegarLoop]: Abstraction has 6292 states and 8448 transitions. [2022-10-16 14:01:23,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 17.266666666666666) internal successors, (259), 12 states have internal predecessors, (259), 9 states have call successors, (96), 10 states have call predecessors, (96), 5 states have return successors, (93), 9 states have call predecessors, (93), 9 states have call successors, (93) [2022-10-16 14:01:23,555 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 8448 transitions. [2022-10-16 14:01:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-10-16 14:01:23,561 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:01:23,562 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:01:23,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:01:23,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:01:23,777 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:01:23,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:01:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash -96336015, now seen corresponding path program 1 times [2022-10-16 14:01:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:01:23,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615881629] [2022-10-16 14:01:23,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:01:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:01:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:01:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:01:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:01:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:01:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:01:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:01:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:01:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:01:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:01:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:01:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:01:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:24,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 14:01:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 14:01:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 14:01:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 14:01:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 14:01:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-10-16 14:01:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-10-16 14:01:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-10-16 14:01:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-10-16 14:01:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-10-16 14:01:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-10-16 14:01:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-10-16 14:01:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-10-16 14:01:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2022-10-16 14:01:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2022-10-16 14:01:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 927 trivial. 0 not checked. [2022-10-16 14:01:25,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:01:25,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615881629] [2022-10-16 14:01:25,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615881629] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:01:25,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569603993] [2022-10-16 14:01:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:25,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:01:25,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:01:25,429 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:01:25,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:01:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:26,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 2998 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:01:26,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:01:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2022-10-16 14:01:26,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:01:26,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569603993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:01:26,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:01:26,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-10-16 14:01:26,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024833015] [2022-10-16 14:01:26,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:01:26,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:01:26,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:01:26,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:01:26,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:01:26,604 INFO L87 Difference]: Start difference. First operand 6292 states and 8448 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 4 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2022-10-16 14:01:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:27,975 INFO L93 Difference]: Finished difference Result 14479 states and 19754 transitions. [2022-10-16 14:01:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:01:27,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 4 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 429 [2022-10-16 14:01:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:28,024 INFO L225 Difference]: With dead ends: 14479 [2022-10-16 14:01:28,024 INFO L226 Difference]: Without dead ends: 8344 [2022-10-16 14:01:28,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 562 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:01:28,053 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 379 mSDsluCounter, 5362 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 6823 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:28,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 6823 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:01:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2022-10-16 14:01:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 6307. [2022-10-16 14:01:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6307 states, 4509 states have (on average 1.2696828565092038) internal successors, (5725), 4613 states have internal predecessors, (5725), 1323 states have call successors, (1323), 419 states have call predecessors, (1323), 458 states have return successors, (1417), 1326 states have call predecessors, (1417), 1323 states have call successors, (1417) [2022-10-16 14:01:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 8465 transitions. [2022-10-16 14:01:29,066 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 8465 transitions. Word has length 429 [2022-10-16 14:01:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:01:29,067 INFO L495 AbstractCegarLoop]: Abstraction has 6307 states and 8465 transitions. [2022-10-16 14:01:29,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 4 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2022-10-16 14:01:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 8465 transitions. [2022-10-16 14:01:29,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-10-16 14:01:29,074 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:01:29,074 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 14:01:29,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:01:29,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 14:01:29,290 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:01:29,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:01:29,290 INFO L85 PathProgramCache]: Analyzing trace with hash -73703761, now seen corresponding path program 1 times [2022-10-16 14:01:29,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:01:29,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809012745] [2022-10-16 14:01:29,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:29,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:01:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:01:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:01:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:01:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:01:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:01:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:01:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:01:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:01:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:01:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:01:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:01:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:01:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 14:01:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 14:01:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 14:01:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 14:01:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 14:01:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-10-16 14:01:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-10-16 14:01:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-10-16 14:01:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-10-16 14:01:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:30,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-10-16 14:01:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-10-16 14:01:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-10-16 14:01:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-10-16 14:01:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2022-10-16 14:01:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2022-10-16 14:01:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 927 trivial. 0 not checked. [2022-10-16 14:01:31,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:01:31,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809012745] [2022-10-16 14:01:31,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809012745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:01:31,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669442495] [2022-10-16 14:01:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:31,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:01:31,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:01:31,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:01:31,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:01:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:32,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 2999 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:01:32,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:01:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-10-16 14:01:32,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:01:32,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669442495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:01:32,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:01:32,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2022-10-16 14:01:32,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732706675] [2022-10-16 14:01:32,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:01:32,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:01:32,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:01:32,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:01:32,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:01:32,404 INFO L87 Difference]: Start difference. First operand 6307 states and 8465 transitions. Second operand has 10 states, 8 states have (on average 17.875) internal successors, (143), 10 states have internal predecessors, (143), 7 states have call successors, (46), 2 states have call predecessors, (46), 5 states have return successors, (45), 5 states have call predecessors, (45), 7 states have call successors, (45) [2022-10-16 14:01:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:33,705 INFO L93 Difference]: Finished difference Result 12660 states and 16989 transitions. [2022-10-16 14:01:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:01:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 17.875) internal successors, (143), 10 states have internal predecessors, (143), 7 states have call successors, (46), 2 states have call predecessors, (46), 5 states have return successors, (45), 5 states have call predecessors, (45), 7 states have call successors, (45) Word has length 429 [2022-10-16 14:01:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:33,738 INFO L225 Difference]: With dead ends: 12660 [2022-10-16 14:01:33,738 INFO L226 Difference]: Without dead ends: 6380 [2022-10-16 14:01:33,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 559 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:01:33,762 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 19 mSDsluCounter, 7384 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:33,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 8316 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:01:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6380 states. [2022-10-16 14:01:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6380 to 6313. [2022-10-16 14:01:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6313 states, 4511 states have (on average 1.2695632897362004) internal successors, (5727), 4615 states have internal predecessors, (5727), 1325 states have call successors, (1325), 419 states have call predecessors, (1325), 460 states have return successors, (1423), 1330 states have call predecessors, (1423), 1325 states have call successors, (1423) [2022-10-16 14:01:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 8475 transitions. [2022-10-16 14:01:34,736 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 8475 transitions. Word has length 429 [2022-10-16 14:01:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:01:34,738 INFO L495 AbstractCegarLoop]: Abstraction has 6313 states and 8475 transitions. [2022-10-16 14:01:34,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 17.875) internal successors, (143), 10 states have internal predecessors, (143), 7 states have call successors, (46), 2 states have call predecessors, (46), 5 states have return successors, (45), 5 states have call predecessors, (45), 7 states have call successors, (45) [2022-10-16 14:01:34,739 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 8475 transitions. [2022-10-16 14:01:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-10-16 14:01:34,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:01:34,746 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 14:01:34,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:01:34,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:01:34,961 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:01:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:01:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1175876109, now seen corresponding path program 2 times [2022-10-16 14:01:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:01:34,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906007512] [2022-10-16 14:01:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:34,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:01:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:01:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:01:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:01:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:01:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:01:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:01:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:01:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:01:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:01:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:01:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:01:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:01:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:36,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 14:01:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 14:01:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 14:01:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 14:01:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 14:01:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-10-16 14:01:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-10-16 14:01:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-10-16 14:01:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-10-16 14:01:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-10-16 14:01:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-10-16 14:01:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-10-16 14:01:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-10-16 14:01:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2022-10-16 14:01:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2022-10-16 14:01:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 974 trivial. 0 not checked. [2022-10-16 14:01:37,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:01:37,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906007512] [2022-10-16 14:01:37,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906007512] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:01:37,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332548692] [2022-10-16 14:01:37,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:01:37,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:01:37,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:01:37,304 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:01:37,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:01:39,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:01:39,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:01:39,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 3003 conjuncts, 50 conjunts are in the unsatisfiable core [2022-10-16 14:01:39,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:01:39,769 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2022-10-16 14:01:39,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:01:39,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332548692] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:01:39,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:01:39,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 19 [2022-10-16 14:01:39,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707335896] [2022-10-16 14:01:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:01:39,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:01:39,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:01:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:01:39,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:01:39,774 INFO L87 Difference]: Start difference. First operand 6313 states and 8475 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 8 states have internal predecessors, (110), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) [2022-10-16 14:01:41,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:41,624 INFO L93 Difference]: Finished difference Result 14545 states and 19865 transitions. [2022-10-16 14:01:41,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:01:41,625 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 8 states have internal predecessors, (110), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) Word has length 429 [2022-10-16 14:01:41,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:41,669 INFO L225 Difference]: With dead ends: 14545 [2022-10-16 14:01:41,669 INFO L226 Difference]: Without dead ends: 8339 [2022-10-16 14:01:41,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 562 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:01:41,696 INFO L413 NwaCegarLoop]: 1468 mSDtfsCounter, 691 mSDsluCounter, 10846 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 12314 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:41,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 12314 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:01:41,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8339 states. [2022-10-16 14:01:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8339 to 6343. [2022-10-16 14:01:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 4529 states have (on average 1.2684919408257893) internal successors, (5745), 4633 states have internal predecessors, (5745), 1333 states have call successors, (1333), 419 states have call predecessors, (1333), 464 states have return successors, (1438), 1342 states have call predecessors, (1438), 1333 states have call successors, (1438) [2022-10-16 14:01:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 8516 transitions. [2022-10-16 14:01:42,788 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 8516 transitions. Word has length 429 [2022-10-16 14:01:42,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:01:42,789 INFO L495 AbstractCegarLoop]: Abstraction has 6343 states and 8516 transitions. [2022-10-16 14:01:42,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 8 states have internal predecessors, (110), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) [2022-10-16 14:01:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 8516 transitions. [2022-10-16 14:01:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-10-16 14:01:42,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:01:42,796 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 14:01:42,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:01:43,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 14:01:43,012 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:01:43,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:01:43,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1559573247, now seen corresponding path program 1 times [2022-10-16 14:01:43,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:01:43,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975296508] [2022-10-16 14:01:43,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:43,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:01:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:01:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:01:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:01:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:01:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:01:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:01:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:01:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:01:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:01:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:01:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:01:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:01:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 14:01:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 14:01:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 14:01:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 14:01:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 14:01:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-10-16 14:01:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-10-16 14:01:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-10-16 14:01:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-10-16 14:01:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-10-16 14:01:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:01:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:01:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:01:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-10-16 14:01:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-10-16 14:01:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-10-16 14:01:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-10-16 14:01:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-10-16 14:01:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2022-10-16 14:01:45,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:01:45,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975296508] [2022-10-16 14:01:45,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975296508] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:01:45,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697780953] [2022-10-16 14:01:45,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:45,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:01:45,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:01:45,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:01:45,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:01:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:46,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 3055 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:01:46,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:01:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-10-16 14:01:46,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:01:46,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697780953] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:01:46,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:01:46,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-10-16 14:01:46,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973440165] [2022-10-16 14:01:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:01:46,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:01:46,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:01:46,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:01:46,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:01:46,407 INFO L87 Difference]: Start difference. First operand 6343 states and 8516 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2022-10-16 14:01:47,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:47,482 INFO L93 Difference]: Finished difference Result 14304 states and 19456 transitions. [2022-10-16 14:01:47,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:01:47,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 445 [2022-10-16 14:01:47,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:47,535 INFO L225 Difference]: With dead ends: 14304 [2022-10-16 14:01:47,535 INFO L226 Difference]: Without dead ends: 8033 [2022-10-16 14:01:47,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:01:47,562 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 388 mSDsluCounter, 5348 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 6809 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:47,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 6809 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:01:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2022-10-16 14:01:48,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 6343. [2022-10-16 14:01:48,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 4529 states have (on average 1.2684919408257893) internal successors, (5745), 4633 states have internal predecessors, (5745), 1333 states have call successors, (1333), 419 states have call predecessors, (1333), 464 states have return successors, (1436), 1342 states have call predecessors, (1436), 1333 states have call successors, (1436) [2022-10-16 14:01:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 8514 transitions. [2022-10-16 14:01:48,606 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 8514 transitions. Word has length 445 [2022-10-16 14:01:48,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:01:48,607 INFO L495 AbstractCegarLoop]: Abstraction has 6343 states and 8514 transitions. [2022-10-16 14:01:48,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2022-10-16 14:01:48,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 8514 transitions. [2022-10-16 14:01:48,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-10-16 14:01:48,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:01:48,616 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 14:01:48,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 14:01:48,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:01:48,823 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:01:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:01:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1923039745, now seen corresponding path program 1 times [2022-10-16 14:01:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:01:48,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266839056] [2022-10-16 14:01:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:48,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:01:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:01:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:01:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:01:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:01:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:01:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:01:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:01:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:01:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:01:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:01:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:01:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:01:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:01:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:01:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-16 14:01:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 14:01:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 14:01:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 14:01:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-10-16 14:01:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-10-16 14:01:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-10-16 14:01:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-10-16 14:01:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-10-16 14:01:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:01:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:01:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-10-16 14:01:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:01:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:01:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:01:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-10-16 14:01:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-10-16 14:01:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-10-16 14:01:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:01:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-10-16 14:01:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-10-16 14:01:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2022-10-16 14:01:50,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:01:50,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266839056] [2022-10-16 14:01:50,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266839056] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:01:50,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176688696] [2022-10-16 14:01:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:01:50,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:01:50,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:01:50,724 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:01:50,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:01:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:01:52,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 14:01:52,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:01:52,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 82 [2022-10-16 14:01:52,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 82 [2022-10-16 14:01:52,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-10-16 14:01:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-10-16 14:01:52,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:01:52,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176688696] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:01:52,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:01:52,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2022-10-16 14:01:52,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53335886] [2022-10-16 14:01:52,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:01:52,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:01:52,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:01:52,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:01:52,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:01:52,312 INFO L87 Difference]: Start difference. First operand 6343 states and 8514 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2022-10-16 14:01:54,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:01:58,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:01:58,943 INFO L93 Difference]: Finished difference Result 16426 states and 22719 transitions. [2022-10-16 14:01:58,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:01:58,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) Word has length 445 [2022-10-16 14:01:58,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:01:58,988 INFO L225 Difference]: With dead ends: 16426 [2022-10-16 14:01:58,989 INFO L226 Difference]: Without dead ends: 10135 [2022-10-16 14:01:59,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:01:59,013 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 417 mSDsluCounter, 6224 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 7256 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:01:59,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 7256 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-16 14:01:59,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2022-10-16 14:02:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 6363. [2022-10-16 14:02:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6363 states, 4548 states have (on average 1.268249780123131) internal successors, (5768), 4651 states have internal predecessors, (5768), 1333 states have call successors, (1333), 419 states have call predecessors, (1333), 465 states have return successors, (1440), 1344 states have call predecessors, (1440), 1333 states have call successors, (1440) [2022-10-16 14:02:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 8541 transitions. [2022-10-16 14:02:00,223 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 8541 transitions. Word has length 445 [2022-10-16 14:02:00,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:02:00,223 INFO L495 AbstractCegarLoop]: Abstraction has 6363 states and 8541 transitions. [2022-10-16 14:02:00,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2022-10-16 14:02:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 8541 transitions. [2022-10-16 14:02:00,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2022-10-16 14:02:00,231 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:02:00,232 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 14:02:00,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:02:00,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:02:00,448 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:02:00,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:02:00,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1184220093, now seen corresponding path program 1 times [2022-10-16 14:02:00,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:02:00,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46015521] [2022-10-16 14:02:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:00,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:02:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:02:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:02:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:02:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:02:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:02:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:02:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:02:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:02:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:02:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:02:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:02:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:02:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:01,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 14:02:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-10-16 14:02:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 14:02:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-10-16 14:02:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-10-16 14:02:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-10-16 14:02:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-10-16 14:02:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-10-16 14:02:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-10-16 14:02:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-10-16 14:02:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-10-16 14:02:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-10-16 14:02:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-10-16 14:02:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-10-16 14:02:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-10-16 14:02:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1687 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2022-10-16 14:02:02,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:02:02,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46015521] [2022-10-16 14:02:02,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46015521] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:02:02,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483250372] [2022-10-16 14:02:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:02,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:02:02,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:02:02,364 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:02:02,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:02:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:04,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 14:02:04,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:02:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1687 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2022-10-16 14:02:04,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:02:04,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483250372] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:02:04,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:02:04,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 12 [2022-10-16 14:02:04,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259383783] [2022-10-16 14:02:04,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:02:04,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:02:04,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:02:04,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:02:04,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:02:04,727 INFO L87 Difference]: Start difference. First operand 6363 states and 8541 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2022-10-16 14:02:06,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:02:06,552 INFO L93 Difference]: Finished difference Result 14158 states and 19263 transitions. [2022-10-16 14:02:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:02:06,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) Word has length 502 [2022-10-16 14:02:06,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:02:06,591 INFO L225 Difference]: With dead ends: 14158 [2022-10-16 14:02:06,591 INFO L226 Difference]: Without dead ends: 7839 [2022-10-16 14:02:06,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 665 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:02:06,616 INFO L413 NwaCegarLoop]: 1441 mSDtfsCounter, 344 mSDsluCounter, 6758 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 8199 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:02:06,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 8199 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:02:06,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7839 states. [2022-10-16 14:02:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7839 to 6348. [2022-10-16 14:02:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 4533 states have (on average 1.2682550187513788) internal successors, (5749), 4636 states have internal predecessors, (5749), 1333 states have call successors, (1333), 419 states have call predecessors, (1333), 465 states have return successors, (1440), 1344 states have call predecessors, (1440), 1333 states have call successors, (1440) [2022-10-16 14:02:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 8522 transitions. [2022-10-16 14:02:07,720 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 8522 transitions. Word has length 502 [2022-10-16 14:02:07,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:02:07,720 INFO L495 AbstractCegarLoop]: Abstraction has 6348 states and 8522 transitions. [2022-10-16 14:02:07,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2022-10-16 14:02:07,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 8522 transitions. [2022-10-16 14:02:07,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-10-16 14:02:07,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:02:07,728 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:02:07,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:02:07,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:02:07,942 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:02:07,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:02:07,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1142523149, now seen corresponding path program 2 times [2022-10-16 14:02:07,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:02:07,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015101377] [2022-10-16 14:02:07,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:07,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:02:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:02:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:02:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:02:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:02:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:02:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:02:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:02:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:02:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:02:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:02:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:02:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:02:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 14:02:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 14:02:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 14:02:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-10-16 14:02:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-10-16 14:02:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-10-16 14:02:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-10-16 14:02:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-10-16 14:02:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-10-16 14:02:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-10-16 14:02:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-10-16 14:02:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-10-16 14:02:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-10-16 14:02:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-10-16 14:02:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-10-16 14:02:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:10,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-10-16 14:02:10,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:02:10,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015101377] [2022-10-16 14:02:10,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015101377] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:02:10,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:02:10,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:02:10,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397967683] [2022-10-16 14:02:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:02:10,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:02:10,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:02:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:02:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:02:10,367 INFO L87 Difference]: Start difference. First operand 6348 states and 8522 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-10-16 14:02:13,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:02:18,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:02:18,602 INFO L93 Difference]: Finished difference Result 13838 states and 18826 transitions. [2022-10-16 14:02:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:02:18,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 461 [2022-10-16 14:02:18,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:02:18,634 INFO L225 Difference]: With dead ends: 13838 [2022-10-16 14:02:18,634 INFO L226 Difference]: Without dead ends: 7544 [2022-10-16 14:02:18,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:02:18,653 INFO L413 NwaCegarLoop]: 1080 mSDtfsCounter, 977 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 937 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 4970 SdHoareTripleChecker+Invalid, 3538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:02:18,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 4970 Invalid, 3538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [937 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-10-16 14:02:18,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-10-16 14:02:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 6358. [2022-10-16 14:02:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6358 states, 4543 states have (on average 1.2683248954435395) internal successors, (5762), 4646 states have internal predecessors, (5762), 1333 states have call successors, (1333), 419 states have call predecessors, (1333), 465 states have return successors, (1440), 1344 states have call predecessors, (1440), 1333 states have call successors, (1440) [2022-10-16 14:02:19,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6358 states to 6358 states and 8535 transitions. [2022-10-16 14:02:19,726 INFO L78 Accepts]: Start accepts. Automaton has 6358 states and 8535 transitions. Word has length 461 [2022-10-16 14:02:19,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:02:19,726 INFO L495 AbstractCegarLoop]: Abstraction has 6358 states and 8535 transitions. [2022-10-16 14:02:19,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-10-16 14:02:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 6358 states and 8535 transitions. [2022-10-16 14:02:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-10-16 14:02:19,734 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:02:19,734 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 12, 12, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 14:02:19,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 14:02:19,735 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:02:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:02:19,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1252364617, now seen corresponding path program 2 times [2022-10-16 14:02:19,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:02:19,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527223772] [2022-10-16 14:02:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:19,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:02:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:02:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:02:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:02:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:02:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:02:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:02:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:02:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:02:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:02:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:02:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:02:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:02:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 14:02:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-10-16 14:02:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-10-16 14:02:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-10-16 14:02:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-10-16 14:02:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-10-16 14:02:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-10-16 14:02:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-10-16 14:02:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-10-16 14:02:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-10-16 14:02:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-10-16 14:02:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-10-16 14:02:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2022-10-16 14:02:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-10-16 14:02:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-10-16 14:02:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1920 trivial. 0 not checked. [2022-10-16 14:02:21,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:02:21,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527223772] [2022-10-16 14:02:21,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527223772] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:02:21,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:02:21,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:02:21,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306038056] [2022-10-16 14:02:21,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:02:21,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:02:21,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:02:21,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:02:21,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:02:21,781 INFO L87 Difference]: Start difference. First operand 6358 states and 8535 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-10-16 14:02:24,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:02:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:02:29,208 INFO L93 Difference]: Finished difference Result 13858 states and 18852 transitions. [2022-10-16 14:02:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:02:29,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 518 [2022-10-16 14:02:29,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:02:29,232 INFO L225 Difference]: With dead ends: 13858 [2022-10-16 14:02:29,232 INFO L226 Difference]: Without dead ends: 7565 [2022-10-16 14:02:29,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:02:29,243 INFO L413 NwaCegarLoop]: 1077 mSDtfsCounter, 1156 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 1146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 4415 SdHoareTripleChecker+Invalid, 3481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:02:29,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 4415 Invalid, 3481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1146 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-10-16 14:02:29,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-10-16 14:02:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 6378. [2022-10-16 14:02:30,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 4563 states have (on average 1.2686828840674995) internal successors, (5789), 4666 states have internal predecessors, (5789), 1333 states have call successors, (1333), 419 states have call predecessors, (1333), 465 states have return successors, (1440), 1344 states have call predecessors, (1440), 1333 states have call successors, (1440) [2022-10-16 14:02:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 8562 transitions. [2022-10-16 14:02:30,133 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 8562 transitions. Word has length 518 [2022-10-16 14:02:30,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:02:30,134 INFO L495 AbstractCegarLoop]: Abstraction has 6378 states and 8562 transitions. [2022-10-16 14:02:30,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (41), 7 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-10-16 14:02:30,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 8562 transitions. [2022-10-16 14:02:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-10-16 14:02:30,140 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:02:30,141 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 12, 12, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:02:30,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 14:02:30,141 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:02:30,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:02:30,142 INFO L85 PathProgramCache]: Analyzing trace with hash 13183835, now seen corresponding path program 1 times [2022-10-16 14:02:30,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:02:30,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596070905] [2022-10-16 14:02:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:30,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:02:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:02:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:02:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:02:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:02:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:02:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:02:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:02:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:02:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:02:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:02:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:02:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:02:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-10-16 14:02:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-10-16 14:02:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-10-16 14:02:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-10-16 14:02:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-10-16 14:02:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-10-16 14:02:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-10-16 14:02:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-10-16 14:02:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-10-16 14:02:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-10-16 14:02:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-10-16 14:02:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-10-16 14:02:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-10-16 14:02:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-10-16 14:02:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2022-10-16 14:02:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1931 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1917 trivial. 0 not checked. [2022-10-16 14:02:32,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:02:32,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596070905] [2022-10-16 14:02:32,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596070905] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:02:32,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139753975] [2022-10-16 14:02:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:32,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:02:32,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:02:32,368 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:02:32,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:02:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:40,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 3371 conjuncts, 52 conjunts are in the unsatisfiable core [2022-10-16 14:02:40,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:02:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1931 backedges. 748 proven. 0 refuted. 0 times theorem prover too weak. 1183 trivial. 0 not checked. [2022-10-16 14:02:40,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:02:40,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139753975] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:02:40,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:02:40,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 15 [2022-10-16 14:02:40,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340810133] [2022-10-16 14:02:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:02:40,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:02:40,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:02:40,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:02:40,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:02:40,952 INFO L87 Difference]: Start difference. First operand 6378 states and 8562 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 8 states have internal predecessors, (151), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (50), 5 states have call predecessors, (50), 3 states have call successors, (50) [2022-10-16 14:02:42,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:02:42,467 INFO L93 Difference]: Finished difference Result 11479 states and 15679 transitions. [2022-10-16 14:02:42,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:02:42,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 8 states have internal predecessors, (151), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (50), 5 states have call predecessors, (50), 3 states have call successors, (50) Word has length 527 [2022-10-16 14:02:42,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:02:42,500 INFO L225 Difference]: With dead ends: 11479 [2022-10-16 14:02:42,500 INFO L226 Difference]: Without dead ends: 8036 [2022-10-16 14:02:42,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 695 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:02:42,515 INFO L413 NwaCegarLoop]: 1468 mSDtfsCounter, 691 mSDsluCounter, 10846 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 12314 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:02:42,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 12314 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:02:42,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-10-16 14:02:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 6387. [2022-10-16 14:02:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6387 states, 4568 states have (on average 1.2683887915936953) internal successors, (5794), 4670 states have internal predecessors, (5794), 1337 states have call successors, (1337), 419 states have call predecessors, (1337), 465 states have return successors, (1444), 1349 states have call predecessors, (1444), 1337 states have call successors, (1444) [2022-10-16 14:02:43,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 8575 transitions. [2022-10-16 14:02:43,662 INFO L78 Accepts]: Start accepts. Automaton has 6387 states and 8575 transitions. Word has length 527 [2022-10-16 14:02:43,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:02:43,663 INFO L495 AbstractCegarLoop]: Abstraction has 6387 states and 8575 transitions. [2022-10-16 14:02:43,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 8 states have internal predecessors, (151), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (50), 5 states have call predecessors, (50), 3 states have call successors, (50) [2022-10-16 14:02:43,663 INFO L276 IsEmpty]: Start isEmpty. Operand 6387 states and 8575 transitions. [2022-10-16 14:02:43,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2022-10-16 14:02:43,670 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:02:43,671 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:02:43,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-10-16 14:02:43,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:02:43,879 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:02:43,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:02:43,879 INFO L85 PathProgramCache]: Analyzing trace with hash -766358973, now seen corresponding path program 2 times [2022-10-16 14:02:43,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:02:43,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269792216] [2022-10-16 14:02:43,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:43,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:02:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:02:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:02:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:02:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:02:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:02:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:02:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:02:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:02:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:02:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:02:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:02:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:02:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-10-16 14:02:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 14:02:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-10-16 14:02:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-10-16 14:02:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-10-16 14:02:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-10-16 14:02:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-10-16 14:02:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-10-16 14:02:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-10-16 14:02:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-10-16 14:02:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:02:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:02:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 14:02:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-10-16 14:02:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2022-10-16 14:02:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-10-16 14:02:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-10-16 14:02:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-10-16 14:02:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:45,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2022-10-16 14:02:45,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:02:45,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269792216] [2022-10-16 14:02:45,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269792216] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:02:45,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390184724] [2022-10-16 14:02:45,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:02:45,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:02:45,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:02:45,829 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:02:45,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:02:48,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:02:48,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:02:48,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 56 conjunts are in the unsatisfiable core [2022-10-16 14:02:48,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:02:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1465 trivial. 0 not checked. [2022-10-16 14:02:48,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:02:48,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390184724] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:02:48,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:02:48,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2022-10-16 14:02:48,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637174937] [2022-10-16 14:02:48,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:02:48,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:02:48,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:02:48,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:02:48,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:02:48,802 INFO L87 Difference]: Start difference. First operand 6387 states and 8575 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 9 states have internal predecessors, (123), 4 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (44), 6 states have call predecessors, (44), 4 states have call successors, (44) [2022-10-16 14:02:50,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:02:50,599 INFO L93 Difference]: Finished difference Result 11755 states and 16112 transitions. [2022-10-16 14:02:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:02:50,600 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 9 states have internal predecessors, (123), 4 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (44), 6 states have call predecessors, (44), 4 states have call successors, (44) Word has length 495 [2022-10-16 14:02:50,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:02:50,625 INFO L225 Difference]: With dead ends: 11755 [2022-10-16 14:02:50,626 INFO L226 Difference]: Without dead ends: 8379 [2022-10-16 14:02:50,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:02:50,638 INFO L413 NwaCegarLoop]: 1468 mSDtfsCounter, 697 mSDsluCounter, 12284 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 13752 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:02:50,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 13752 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:02:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2022-10-16 14:02:52,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 6363. [2022-10-16 14:02:52,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6363 states, 4552 states have (on average 1.2682337434094904) internal successors, (5773), 4653 states have internal predecessors, (5773), 1330 states have call successors, (1330), 419 states have call predecessors, (1330), 464 states have return successors, (1436), 1341 states have call predecessors, (1436), 1330 states have call successors, (1436) [2022-10-16 14:02:52,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 8539 transitions. [2022-10-16 14:02:52,049 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 8539 transitions. Word has length 495 [2022-10-16 14:02:52,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:02:52,049 INFO L495 AbstractCegarLoop]: Abstraction has 6363 states and 8539 transitions. [2022-10-16 14:02:52,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 9 states have internal predecessors, (123), 4 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (44), 6 states have call predecessors, (44), 4 states have call successors, (44) [2022-10-16 14:02:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 8539 transitions. [2022-10-16 14:02:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-10-16 14:02:52,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:02:52,057 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:02:52,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 14:02:52,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:02:52,272 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tower_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tower_disconnectErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 14:02:52,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:02:52,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2041590329, now seen corresponding path program 1 times [2022-10-16 14:02:52,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:02:52,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967174283] [2022-10-16 14:02:52,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:52,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:02:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:02:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:02:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 14:02:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 14:02:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 14:02:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 14:02:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 14:02:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 14:02:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:02:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:02:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 14:02:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 14:02:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:02:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 14:02:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 14:02:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 14:02:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 14:02:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 14:02:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 14:02:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-10-16 14:02:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-10-16 14:02:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-10-16 14:02:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 14:02:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 14:02:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 14:02:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 14:02:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 14:02:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-10-16 14:02:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-10-16 14:02:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-10-16 14:02:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-10-16 14:02:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 14:02:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-10-16 14:02:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-10-16 14:02:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-10-16 14:02:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2022-10-16 14:02:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-10-16 14:02:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:02:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-10-16 14:02:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:02:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 6 proven. 106 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-10-16 14:02:54,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:02:54,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967174283] [2022-10-16 14:02:54,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967174283] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:02:54,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072889529] [2022-10-16 14:02:54,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:02:54,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:02:54,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:02:54,689 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:02:54,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:02:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:02:55,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 14:02:55,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:02:55,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 577 proven. 3 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-10-16 14:02:55,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:02:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 18 proven. 87 refuted. 0 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-10-16 14:02:56,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072889529] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:02:56,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:02:56,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 8] total 22 [2022-10-16 14:02:56,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733738276] [2022-10-16 14:02:56,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:02:56,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 14:02:56,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:02:56,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 14:02:56,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:02:56,482 INFO L87 Difference]: Start difference. First operand 6363 states and 8539 transitions. Second operand has 22 states, 21 states have (on average 10.476190476190476) internal successors, (220), 13 states have internal predecessors, (220), 5 states have call successors, (120), 8 states have call predecessors, (120), 5 states have return successors, (101), 7 states have call predecessors, (101), 5 states have call successors, (101)