/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-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:08:37,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:08:37,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:08:37,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:08:37,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:08:37,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:08:37,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:08:37,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:08:37,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:08:37,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:08:37,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:08:37,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:08:37,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:08:37,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:08:37,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:08:37,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:08:37,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:08:37,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:08:37,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:08:37,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:08:37,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:08:37,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:08:37,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:08:37,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:08:37,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:08:37,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:08:37,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:08:37,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:08:37,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:08:37,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:08:37,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:08:37,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:08:37,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:08:37,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:08:37,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:08:37,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:08:37,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:08:37,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:08:37,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:08:37,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:08:37,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:08:37,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:08:37,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:08:37,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:08:37,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:08:37,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:08:37,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:08:37,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:08:37,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:08:37,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:08:37,505 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:08:37,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:08:37,506 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:08:37,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:08:37,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:08:37,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:08:37,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:08:37,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:08:37,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:08:37,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:08:37,508 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:08:37,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:08:37,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:08:37,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:08:37,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:08:37,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:08:37,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:08:37,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:08:37,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:08:37,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:08:37,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:08:37,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:08:37,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:08:37,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:08:37,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:08:37,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:08:37,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:08:38,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:08:38,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:08:38,037 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:08:38,038 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:08:38,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-10-15 21:08:38,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a229553b/6ae555a4e5e748549a0664170b714062/FLAGc873ebbaa [2022-10-15 21:08:39,296 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:08:39,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-10-15 21:08:39,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a229553b/6ae555a4e5e748549a0664170b714062/FLAGc873ebbaa [2022-10-15 21:08:39,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a229553b/6ae555a4e5e748549a0664170b714062 [2022-10-15 21:08:39,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:08:39,765 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:08:39,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:08:39,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:08:39,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:08:39,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:08:39" (1/1) ... [2022-10-15 21:08:39,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d4b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:39, skipping insertion in model container [2022-10-15 21:08:39,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:08:39" (1/1) ... [2022-10-15 21:08:39,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:08:39,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:08:41,565 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-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-10-15 21:08:41,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:08:41,666 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:08:42,073 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-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-10-15 21:08:42,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:08:42,261 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:08:42,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42 WrapperNode [2022-10-15 21:08:42,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:08:42,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:08:42,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:08:42,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:08:42,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,693 INFO L138 Inliner]: procedures = 191, calls = 829, calls flagged for inlining = 88, calls inlined = 74, statements flattened = 2160 [2022-10-15 21:08:42,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:08:42,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:08:42,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:08:42,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:08:42,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:08:42,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:08:42,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:08:42,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:08:42,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (1/1) ... [2022-10-15 21:08:42,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:08:43,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:08:43,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:08:43,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:08:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:08:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2022-10-15 21:08:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2022-10-15 21:08:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:08:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:08:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:08:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-10-15 21:08:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-10-15 21:08:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:08:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:08:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-10-15 21:08:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-10-15 21:08:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:08:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:08:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2022-10-15 21:08:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2022-10-15 21:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:08:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 21:08:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 21:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:08:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:08:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2022-10-15 21:08:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2022-10-15 21:08:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:08:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:08:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:08:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-15 21:08:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-15 21:08:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:08:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:08:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2022-10-15 21:08:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2022-10-15 21:08:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-15 21:08:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-15 21:08:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:08:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:08:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2022-10-15 21:08:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2022-10-15 21:08:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-10-15 21:08:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-10-15 21:08:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:08:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2022-10-15 21:08:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2022-10-15 21:08:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:08:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:08:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:08:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2022-10-15 21:08:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2022-10-15 21:08:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:08:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:08:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:08:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2022-10-15 21:08:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2022-10-15 21:08:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2022-10-15 21:08:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2022-10-15 21:08:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:08:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2022-10-15 21:08:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2022-10-15 21:08:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-15 21:08:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-15 21:08:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-15 21:08:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-15 21:08:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-15 21:08:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-15 21:08:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-10-15 21:08:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-10-15 21:08:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2022-10-15 21:08:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2022-10-15 21:08:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:08:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:08:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2022-10-15 21:08:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2022-10-15 21:08:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:08:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:08:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-15 21:08:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-15 21:08:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:08:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:08:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-15 21:08:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-15 21:08:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-15 21:08:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-15 21:08:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-15 21:08:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-15 21:08:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:08:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:08:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:08:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-15 21:08:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-15 21:08:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-15 21:08:43,134 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-15 21:08:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:08:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:08:43,135 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:08:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-15 21:08:43,136 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-15 21:08:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:08:43,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:08:43,137 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:08:43,137 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:08:43,723 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:08:43,731 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:08:54,281 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:08:54,310 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:08:54,311 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:08:54,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:08:54 BoogieIcfgContainer [2022-10-15 21:08:54,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:08:54,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:08:54,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:08:54,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:08:54,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:08:39" (1/3) ... [2022-10-15 21:08:54,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfffa1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:08:54, skipping insertion in model container [2022-10-15 21:08:54,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:42" (2/3) ... [2022-10-15 21:08:54,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfffa1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:08:54, skipping insertion in model container [2022-10-15 21:08:54,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:08:54" (3/3) ... [2022-10-15 21:08:54,335 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-10-15 21:08:54,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:08:54,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-15 21:08:54,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:08:54,558 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;@a07172d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:08:54,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-15 21:08:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 708 states, 512 states have (on average 1.373046875) internal successors, (703), 539 states have internal predecessors, (703), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-15 21:08:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 21:08:54,591 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:08:54,592 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:08:54,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:08:54,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:08:54,603 INFO L85 PathProgramCache]: Analyzing trace with hash 174738616, now seen corresponding path program 1 times [2022-10-15 21:08:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:08:54,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426205055] [2022-10-15 21:08:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:08:54,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:08:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:08:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:55,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:08:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:55,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:08:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:08:55,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:08:55,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426205055] [2022-10-15 21:08:55,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426205055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:08:55,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:08:55,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:08:55,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275480564] [2022-10-15 21:08:55,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:08:55,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:08:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:08:55,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:08:55,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:08:55,337 INFO L87 Difference]: Start difference. First operand has 708 states, 512 states have (on average 1.373046875) internal successors, (703), 539 states have internal predecessors, (703), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:08:55,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:08:55,812 INFO L93 Difference]: Finished difference Result 1452 states and 2038 transitions. [2022-10-15 21:08:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:08:55,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-10-15 21:08:55,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:08:55,847 INFO L225 Difference]: With dead ends: 1452 [2022-10-15 21:08:55,847 INFO L226 Difference]: Without dead ends: 719 [2022-10-15 21:08:55,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:08:55,870 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 63 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:08:55,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1882 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:08:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-15 21:08:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2022-10-15 21:08:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 530 states have (on average 1.3528301886792453) internal successors, (717), 547 states have internal predecessors, (717), 136 states have call successors, (136), 41 states have call predecessors, (136), 41 states have return successors, (136), 134 states have call predecessors, (136), 136 states have call successors, (136) [2022-10-15 21:08:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 989 transitions. [2022-10-15 21:08:56,022 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 989 transitions. Word has length 29 [2022-10-15 21:08:56,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:08:56,025 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 989 transitions. [2022-10-15 21:08:56,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:08:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 989 transitions. [2022-10-15 21:08:56,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 21:08:56,035 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:08:56,035 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:08:56,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:08:56,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:08:56,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:08:56,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1021274348, now seen corresponding path program 1 times [2022-10-15 21:08:56,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:08:56,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165202468] [2022-10-15 21:08:56,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:08:56,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:08:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:08:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:56,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:08:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:56,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 21:08:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:08:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-15 21:08:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:08:56,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:08:56,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165202468] [2022-10-15 21:08:56,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165202468] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:08:56,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:08:56,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:08:56,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531744142] [2022-10-15 21:08:56,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:08:56,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:08:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:08:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:08:56,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:08:56,469 INFO L87 Difference]: Start difference. First operand 719 states and 989 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:08:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:08:58,646 INFO L93 Difference]: Finished difference Result 1606 states and 2269 transitions. [2022-10-15 21:08:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:08:58,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2022-10-15 21:08:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:08:58,659 INFO L225 Difference]: With dead ends: 1606 [2022-10-15 21:08:58,659 INFO L226 Difference]: Without dead ends: 895 [2022-10-15 21:08:58,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:08:58,667 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 423 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:08:58,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 2310 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-15 21:08:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-10-15 21:08:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 725. [2022-10-15 21:08:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 535 states have (on average 1.3514018691588785) internal successors, (723), 553 states have internal predecessors, (723), 137 states have call successors, (137), 41 states have call predecessors, (137), 41 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-15 21:08:58,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 997 transitions. [2022-10-15 21:08:58,733 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 997 transitions. Word has length 58 [2022-10-15 21:08:58,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:08:58,734 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 997 transitions. [2022-10-15 21:08:58,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:08:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 997 transitions. [2022-10-15 21:08:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 21:08:58,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:08:58,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:08:58,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:08:58,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:08:58,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:08:58,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1804668731, now seen corresponding path program 1 times [2022-10-15 21:08:58,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:08:58,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775415858] [2022-10-15 21:08:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:08:58,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:08:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:58,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:08:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:08:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:08:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:58,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:08:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:58,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:08:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:59,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-15 21:08:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 21:08:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:08:59,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:08:59,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775415858] [2022-10-15 21:08:59,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775415858] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:08:59,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:08:59,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:08:59,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246981504] [2022-10-15 21:08:59,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:08:59,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:08:59,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:08:59,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:08:59,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:08:59,052 INFO L87 Difference]: Start difference. First operand 725 states and 997 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 21:09:01,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:01,450 INFO L93 Difference]: Finished difference Result 1461 states and 2013 transitions. [2022-10-15 21:09:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:09:01,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2022-10-15 21:09:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:01,460 INFO L225 Difference]: With dead ends: 1461 [2022-10-15 21:09:01,461 INFO L226 Difference]: Without dead ends: 741 [2022-10-15 21:09:01,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:01,467 INFO L413 NwaCegarLoop]: 914 mSDtfsCounter, 190 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:01,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 2633 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-15 21:09:01,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2022-10-15 21:09:01,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 725. [2022-10-15 21:09:01,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 535 states have (on average 1.3495327102803738) internal successors, (722), 553 states have internal predecessors, (722), 137 states have call successors, (137), 41 states have call predecessors, (137), 41 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-15 21:09:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 996 transitions. [2022-10-15 21:09:01,523 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 996 transitions. Word has length 60 [2022-10-15 21:09:01,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:01,523 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 996 transitions. [2022-10-15 21:09:01,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 21:09:01,524 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 996 transitions. [2022-10-15 21:09:01,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 21:09:01,531 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:01,531 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:09:01,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:09:01,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:01,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash -905660176, now seen corresponding path program 1 times [2022-10-15 21:09:01,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:01,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345383361] [2022-10-15 21:09:01,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:01,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:01,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:09:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:09:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:01,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:09:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:09:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:09:01,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:01,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345383361] [2022-10-15 21:09:01,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345383361] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:01,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:01,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:01,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755798454] [2022-10-15 21:09:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:01,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:01,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:01,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:01,863 INFO L87 Difference]: Start difference. First operand 725 states and 996 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:09:03,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:03,659 INFO L93 Difference]: Finished difference Result 895 states and 1276 transitions. [2022-10-15 21:09:03,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:03,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 65 [2022-10-15 21:09:03,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:03,669 INFO L225 Difference]: With dead ends: 895 [2022-10-15 21:09:03,670 INFO L226 Difference]: Without dead ends: 894 [2022-10-15 21:09:03,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:03,673 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 418 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:03,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 2314 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 21:09:03,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-10-15 21:09:03,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 724. [2022-10-15 21:09:03,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 535 states have (on average 1.347663551401869) internal successors, (721), 552 states have internal predecessors, (721), 137 states have call successors, (137), 41 states have call predecessors, (137), 41 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-10-15 21:09:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 995 transitions. [2022-10-15 21:09:03,728 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 995 transitions. Word has length 65 [2022-10-15 21:09:03,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:03,729 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 995 transitions. [2022-10-15 21:09:03,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:09:03,730 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 995 transitions. [2022-10-15 21:09:03,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 21:09:03,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:03,733 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:09:03,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:09:03,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:03,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1753658184, now seen corresponding path program 1 times [2022-10-15 21:09:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:03,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656560105] [2022-10-15 21:09:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:03,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:03,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:03,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:04,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 21:09:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:09:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:04,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-15 21:09:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:04,037 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:09:04,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:04,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656560105] [2022-10-15 21:09:04,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656560105] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:04,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309285395] [2022-10-15 21:09:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:04,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:04,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:04,044 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) [2022-10-15 21:09:04,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:09:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:04,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:09:04,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:09:04,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:09:04,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309285395] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:04,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:09:04,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 21:09:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755943547] [2022-10-15 21:09:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:04,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:04,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:04,551 INFO L87 Difference]: Start difference. First operand 724 states and 995 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:09:04,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:04,656 INFO L93 Difference]: Finished difference Result 729 states and 1004 transitions. [2022-10-15 21:09:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:04,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2022-10-15 21:09:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:04,665 INFO L225 Difference]: With dead ends: 729 [2022-10-15 21:09:04,665 INFO L226 Difference]: Without dead ends: 728 [2022-10-15 21:09:04,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:04,668 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 12 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:04,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1873 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:04,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-10-15 21:09:04,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 718. [2022-10-15 21:09:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 531 states have (on average 1.3465160075329567) internal successors, (715), 546 states have internal predecessors, (715), 136 states have call successors, (136), 41 states have call predecessors, (136), 41 states have return successors, (136), 134 states have call predecessors, (136), 136 states have call successors, (136) [2022-10-15 21:09:04,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 987 transitions. [2022-10-15 21:09:04,720 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 987 transitions. Word has length 64 [2022-10-15 21:09:04,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:04,721 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 987 transitions. [2022-10-15 21:09:04,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:09:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 987 transitions. [2022-10-15 21:09:04,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 21:09:04,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:04,726 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-15 21:09:04,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:09:04,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:04,942 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:04,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2078096913, now seen corresponding path program 1 times [2022-10-15 21:09:04,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:04,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029790533] [2022-10-15 21:09:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:04,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:09:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:09:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:09:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:09:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 21:09:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:09:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:09:05,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:05,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029790533] [2022-10-15 21:09:05,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029790533] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:05,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366046194] [2022-10-15 21:09:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:05,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:05,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:05,353 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) [2022-10-15 21:09:05,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:09:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:05,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:09:05,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 21:09:05,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:09:05,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366046194] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:05,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:09:05,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 21:09:05,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966487818] [2022-10-15 21:09:05,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:05,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:05,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:05,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:05,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:05,785 INFO L87 Difference]: Start difference. First operand 718 states and 987 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:09:05,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:05,905 INFO L93 Difference]: Finished difference Result 718 states and 987 transitions. [2022-10-15 21:09:05,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:05,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-10-15 21:09:05,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:05,914 INFO L225 Difference]: With dead ends: 718 [2022-10-15 21:09:05,914 INFO L226 Difference]: Without dead ends: 716 [2022-10-15 21:09:05,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:05,920 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 237 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:05,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1589 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:09:05,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-10-15 21:09:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-10-15 21:09:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 531 states have (on average 1.3427495291902072) internal successors, (713), 544 states have internal predecessors, (713), 136 states have call successors, (136), 41 states have call predecessors, (136), 41 states have return successors, (136), 134 states have call predecessors, (136), 136 states have call successors, (136) [2022-10-15 21:09:05,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 985 transitions. [2022-10-15 21:09:05,971 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 985 transitions. Word has length 73 [2022-10-15 21:09:05,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:05,971 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 985 transitions. [2022-10-15 21:09:05,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:09:05,972 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 985 transitions. [2022-10-15 21:09:05,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 21:09:05,978 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:05,979 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-15 21:09:06,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:09:06,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:09:06,193 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:06,194 INFO L85 PathProgramCache]: Analyzing trace with hash 3506549, now seen corresponding path program 1 times [2022-10-15 21:09:06,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:06,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570633815] [2022-10-15 21:09:06,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:06,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:09:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:09:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:09:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:09:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 21:09:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-15 21:09:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:09:06,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:06,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570633815] [2022-10-15 21:09:06,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570633815] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:06,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986895432] [2022-10-15 21:09:06,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:06,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:06,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:06,524 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) [2022-10-15 21:09:06,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:09:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:06,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:09:06,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 21:09:06,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:09:06,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986895432] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:06,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:09:06,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 21:09:06,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787428620] [2022-10-15 21:09:06,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:06,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:06,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:06,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:06,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:06,968 INFO L87 Difference]: Start difference. First operand 716 states and 985 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:09:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:07,123 INFO L93 Difference]: Finished difference Result 1458 states and 2016 transitions. [2022-10-15 21:09:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:07,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2022-10-15 21:09:07,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:07,132 INFO L225 Difference]: With dead ends: 1458 [2022-10-15 21:09:07,133 INFO L226 Difference]: Without dead ends: 750 [2022-10-15 21:09:07,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:07,148 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 153 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:07,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1742 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:09:07,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-10-15 21:09:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2022-10-15 21:09:07,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 561 states have (on average 1.3458110516934045) internal successors, (755), 573 states have internal predecessors, (755), 141 states have call successors, (141), 41 states have call predecessors, (141), 41 states have return successors, (141), 139 states have call predecessors, (141), 141 states have call successors, (141) [2022-10-15 21:09:07,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1037 transitions. [2022-10-15 21:09:07,213 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1037 transitions. Word has length 74 [2022-10-15 21:09:07,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:07,215 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1037 transitions. [2022-10-15 21:09:07,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:09:07,215 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1037 transitions. [2022-10-15 21:09:07,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-15 21:09:07,220 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:07,220 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-15 21:09:07,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:09:07,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:07,435 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:07,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2020881478, now seen corresponding path program 1 times [2022-10-15 21:09:07,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:07,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738251979] [2022-10-15 21:09:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:07,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:09:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:09:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:09:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:09:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:09:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:09:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:09:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 21:09:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:07,975 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 21:09:07,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:07,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738251979] [2022-10-15 21:09:07,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738251979] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:07,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:07,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:09:07,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508354670] [2022-10-15 21:09:07,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:07,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:09:07,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:07,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:09:07,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:09:07,979 INFO L87 Difference]: Start difference. First operand 750 states and 1037 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:09:15,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:17,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:18,622 INFO L93 Difference]: Finished difference Result 2006 states and 2871 transitions. [2022-10-15 21:09:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 21:09:18,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2022-10-15 21:09:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:18,650 INFO L225 Difference]: With dead ends: 2006 [2022-10-15 21:09:18,651 INFO L226 Difference]: Without dead ends: 1264 [2022-10-15 21:09:18,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:09:18,659 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 921 mSDsluCounter, 5238 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 363 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 6660 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:18,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 6660 Invalid, 2777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [363 Valid, 2412 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2022-10-15 21:09:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-10-15 21:09:18,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 756. [2022-10-15 21:09:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 566 states have (on average 1.342756183745583) internal successors, (760), 578 states have internal predecessors, (760), 141 states have call successors, (141), 41 states have call predecessors, (141), 42 states have return successors, (144), 140 states have call predecessors, (144), 141 states have call successors, (144) [2022-10-15 21:09:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1045 transitions. [2022-10-15 21:09:18,776 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1045 transitions. Word has length 89 [2022-10-15 21:09:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:18,777 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 1045 transitions. [2022-10-15 21:09:18,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:09:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1045 transitions. [2022-10-15 21:09:18,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-15 21:09:18,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:18,782 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-15 21:09:18,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:09:18,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:18,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1768527193, now seen corresponding path program 1 times [2022-10-15 21:09:18,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:18,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971272083] [2022-10-15 21:09:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:18,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:09:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:09:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:09:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:09:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:09:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:09:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:09:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 21:09:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 21:09:19,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:19,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971272083] [2022-10-15 21:09:19,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971272083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:19,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:19,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:09:19,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984290433] [2022-10-15 21:09:19,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:19,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:09:19,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:19,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:09:19,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:19,114 INFO L87 Difference]: Start difference. First operand 756 states and 1045 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:09:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:21,849 INFO L93 Difference]: Finished difference Result 1722 states and 2444 transitions. [2022-10-15 21:09:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:09:21,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2022-10-15 21:09:21,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:21,861 INFO L225 Difference]: With dead ends: 1722 [2022-10-15 21:09:21,861 INFO L226 Difference]: Without dead ends: 974 [2022-10-15 21:09:21,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:21,868 INFO L413 NwaCegarLoop]: 1120 mSDtfsCounter, 818 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:21,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 2750 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-15 21:09:21,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-10-15 21:09:21,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 790. [2022-10-15 21:09:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 596 states have (on average 1.3473154362416107) internal successors, (803), 607 states have internal predecessors, (803), 146 states have call successors, (146), 41 states have call predecessors, (146), 42 states have return successors, (149), 145 states have call predecessors, (149), 146 states have call successors, (149) [2022-10-15 21:09:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1098 transitions. [2022-10-15 21:09:21,938 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1098 transitions. Word has length 89 [2022-10-15 21:09:21,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:21,939 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1098 transitions. [2022-10-15 21:09:21,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:09:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1098 transitions. [2022-10-15 21:09:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-15 21:09:21,948 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:21,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-10-15 21:09:21,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:09:21,949 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:21,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:21,950 INFO L85 PathProgramCache]: Analyzing trace with hash 268713619, now seen corresponding path program 1 times [2022-10-15 21:09:21,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:21,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415078910] [2022-10-15 21:09:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:21,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:09:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:09:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:09:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:09:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 21:09:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:09:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:09:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-15 21:09:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:09:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:09:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:09:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 21:09:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-15 21:09:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-15 21:09:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,491 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:09:22,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:22,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415078910] [2022-10-15 21:09:22,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415078910] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:22,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11627881] [2022-10-15 21:09:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:22,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:22,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:22,494 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) [2022-10-15 21:09:22,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:09:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:22,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:09:22,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-15 21:09:22,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:09:22,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11627881] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:22,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:09:22,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-15 21:09:22,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055304937] [2022-10-15 21:09:22,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:22,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:22,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:22,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:22,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:09:22,999 INFO L87 Difference]: Start difference. First operand 790 states and 1098 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-15 21:09:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:23,116 INFO L93 Difference]: Finished difference Result 1592 states and 2218 transitions. [2022-10-15 21:09:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:23,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2022-10-15 21:09:23,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:23,125 INFO L225 Difference]: With dead ends: 1592 [2022-10-15 21:09:23,125 INFO L226 Difference]: Without dead ends: 810 [2022-10-15 21:09:23,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:09:23,133 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 20 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:23,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1846 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-10-15 21:09:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 809. [2022-10-15 21:09:23,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 622 states have internal predecessors, (822), 150 states have call successors, (150), 41 states have call predecessors, (150), 42 states have return successors, (153), 149 states have call predecessors, (153), 150 states have call successors, (153) [2022-10-15 21:09:23,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1125 transitions. [2022-10-15 21:09:23,195 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1125 transitions. Word has length 142 [2022-10-15 21:09:23,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:23,196 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1125 transitions. [2022-10-15 21:09:23,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-15 21:09:23,196 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1125 transitions. [2022-10-15 21:09:23,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-15 21:09:23,204 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:23,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:23,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:09:23,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:23,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:23,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:23,420 INFO L85 PathProgramCache]: Analyzing trace with hash -249761747, now seen corresponding path program 1 times [2022-10-15 21:09:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:23,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268415151] [2022-10-15 21:09:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:23,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:09:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:09:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:09:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:09:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 21:09:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:09:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:09:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-15 21:09:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:09:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:09:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:09:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:09:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-15 21:09:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-15 21:09:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-15 21:09:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-15 21:09:23,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:23,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268415151] [2022-10-15 21:09:23,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268415151] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:23,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752156476] [2022-10-15 21:09:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:23,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:23,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:23,901 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) [2022-10-15 21:09:23,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:09:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:24,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:09:24,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-15 21:09:24,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:09:24,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752156476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:24,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:09:24,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-15 21:09:24,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443288000] [2022-10-15 21:09:24,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:24,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:24,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:24,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:24,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:09:24,545 INFO L87 Difference]: Start difference. First operand 809 states and 1125 transitions. Second operand has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-15 21:09:24,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:24,674 INFO L93 Difference]: Finished difference Result 1072 states and 1518 transitions. [2022-10-15 21:09:24,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:24,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2022-10-15 21:09:24,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:24,687 INFO L225 Difference]: With dead ends: 1072 [2022-10-15 21:09:24,687 INFO L226 Difference]: Without dead ends: 1071 [2022-10-15 21:09:24,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:09:24,690 INFO L413 NwaCegarLoop]: 1150 mSDtfsCounter, 205 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:24,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 2029 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2022-10-15 21:09:24,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 808. [2022-10-15 21:09:24,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 611 states have (on average 1.3436988543371522) internal successors, (821), 621 states have internal predecessors, (821), 150 states have call successors, (150), 41 states have call predecessors, (150), 42 states have return successors, (153), 149 states have call predecessors, (153), 150 states have call successors, (153) [2022-10-15 21:09:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1124 transitions. [2022-10-15 21:09:24,763 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1124 transitions. Word has length 149 [2022-10-15 21:09:24,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:24,764 INFO L495 AbstractCegarLoop]: Abstraction has 808 states and 1124 transitions. [2022-10-15 21:09:24,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-15 21:09:24,764 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1124 transitions. [2022-10-15 21:09:24,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-15 21:09:24,776 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:24,776 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2022-10-15 21:09:24,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:09:24,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 21:09:24,991 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [uinput_destroy_deviceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uinput_destroy_deviceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 21:09:24,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:24,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1789415313, now seen corresponding path program 1 times [2022-10-15 21:09:24,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:24,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869390468] [2022-10-15 21:09:24,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:09:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:09:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:09:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:09:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 21:09:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:09:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:09:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-15 21:09:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:09:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:09:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:09:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:09:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 21:09:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-15 21:09:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-15 21:09:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-15 21:09:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-15 21:09:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-15 21:09:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-15 21:09:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-15 21:09:25,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869390468] [2022-10-15 21:09:25,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869390468] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958471673] [2022-10-15 21:09:25,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:25,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:25,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:25,610 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) [2022-10-15 21:09:25,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:09:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:26,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:09:26,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-15 21:09:26,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:09:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-15 21:09:26,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958471673] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:09:26,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:09:26,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 8 [2022-10-15 21:09:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190818327] [2022-10-15 21:09:26,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:09:26,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:09:26,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:26,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:09:26,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:09:26,693 INFO L87 Difference]: Start difference. First operand 808 states and 1124 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 5 states have internal predecessors, (165), 4 states have call successors, (48), 5 states have call predecessors, (48), 2 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43)