/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:40:21,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:40:21,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:40:21,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:40:21,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:40:21,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:40:21,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:40:21,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:40:21,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:40:21,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:40:21,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:40:21,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:40:21,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:40:21,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:40:21,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:40:21,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:40:21,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:40:21,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:40:21,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:40:22,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:40:22,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:40:22,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:40:22,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:40:22,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:40:22,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:40:22,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:40:22,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:40:22,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:40:22,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:40:22,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:40:22,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:40:22,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:40:22,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:40:22,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:40:22,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:40:22,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:40:22,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:40:22,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:40:22,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:40:22,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:40:22,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:40:22,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:40:22,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:40:22,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:40:22,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:40:22,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:40:22,073 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:40:22,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:40:22,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:40:22,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:40:22,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:40:22,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:40:22,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:40:22,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:40:22,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:40:22,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:40:22,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:40:22,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:40:22,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:40:22,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:40:22,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:40:22,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:40:22,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:40:22,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:40:22,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:40:22,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:40:22,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:40:22,077 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:40:22,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:40:22,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:40:22,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:40:22,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:40:22,500 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:40:22,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2020-12-22 11:40:22,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8e36adb/a20a287e56c145e89637219d64542697/FLAG209693cc1 [2020-12-22 11:40:23,671 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:40:23,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2020-12-22 11:40:23,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8e36adb/a20a287e56c145e89637219d64542697/FLAG209693cc1 [2020-12-22 11:40:24,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8e36adb/a20a287e56c145e89637219d64542697 [2020-12-22 11:40:24,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:40:24,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:40:24,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:40:24,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:40:24,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:40:24,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:40:24" (1/1) ... [2020-12-22 11:40:24,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d73fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:24, skipping insertion in model container [2020-12-22 11:40:24,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:40:24" (1/1) ... [2020-12-22 11:40:24,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:40:24,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:40:24,593 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2020-12-22 11:40:24,602 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2020-12-22 11:40:24,635 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:40:24,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:40:26,188 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,189 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,190 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,191 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,192 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,214 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,215 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,220 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:26,223 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:40:27,100 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:40:27,103 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:40:27,105 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:40:27,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:40:27,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:40:27,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:40:27,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:40:27,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:40:27,125 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:40:27,334 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:40:27,448 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,449 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:40:27,588 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:40:27,605 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2020-12-22 11:40:27,606 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2020-12-22 11:40:27,608 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-22 11:40:27,609 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-22 11:40:27,644 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,645 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,645 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,646 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,646 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,653 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,654 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,655 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,655 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-22 11:40:27,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-22 11:40:27,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-22 11:40:27,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-22 11:40:27,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-22 11:40:27,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-22 11:40:27,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-22 11:40:27,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-22 11:40:27,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-22 11:40:27,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-22 11:40:27,761 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-22 11:40:27,845 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,847 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-22 11:40:27,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:40:28,918 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:40:28,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28 WrapperNode [2020-12-22 11:40:28,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:40:28,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:40:28,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:40:28,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:40:28,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:40:29,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:40:29,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:40:29,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:40:29,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... [2020-12-22 11:40:29,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:40:29,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:40:29,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:40:29,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:40:29,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:40:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:40:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:40:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 11:40:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:40:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:40:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:40:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:40:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 11:40:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 11:40:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:40:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:40:39,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:40:39,333 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2020-12-22 11:40:39,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:40:39 BoogieIcfgContainer [2020-12-22 11:40:39,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:40:39,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:40:39,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:40:39,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:40:39,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:40:24" (1/3) ... [2020-12-22 11:40:39,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7775e9a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:40:39, skipping insertion in model container [2020-12-22 11:40:39,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:28" (2/3) ... [2020-12-22 11:40:39,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7775e9a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:40:39, skipping insertion in model container [2020-12-22 11:40:39,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:40:39" (3/3) ... [2020-12-22 11:40:39,344 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2020-12-22 11:40:39,351 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:40:39,357 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-22 11:40:39,377 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:40:39,406 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:40:39,406 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:40:39,406 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:40:39,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:40:39,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:40:39,407 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:40:39,407 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:40:39,407 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:40:39,426 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-12-22 11:40:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:40:39,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:39,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:39,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:39,442 INFO L82 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2020-12-22 11:40:39,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:39,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16795498] [2020-12-22 11:40:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:40,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16795498] [2020-12-22 11:40:40,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:40,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:40:40,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670867652] [2020-12-22 11:40:40,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:40:40,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:40,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:40:40,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:40:40,459 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2020-12-22 11:40:40,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:40,507 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2020-12-22 11:40:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:40:40,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2020-12-22 11:40:40,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:40,524 INFO L225 Difference]: With dead ends: 141 [2020-12-22 11:40:40,524 INFO L226 Difference]: Without dead ends: 69 [2020-12-22 11:40:40,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:40:40,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-22 11:40:40,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-22 11:40:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-22 11:40:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2020-12-22 11:40:40,587 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2020-12-22 11:40:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:40,588 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2020-12-22 11:40:40,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:40:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2020-12-22 11:40:40,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:40:40,590 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:40,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:40,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:40:40,591 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:40,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:40,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2020-12-22 11:40:40,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:40,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091283421] [2020-12-22 11:40:40,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:41,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091283421] [2020-12-22 11:40:41,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:41,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:40:41,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346085156] [2020-12-22 11:40:41,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:40:41,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:41,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:40:41,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:40:41,052 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand 4 states. [2020-12-22 11:40:41,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:41,156 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2020-12-22 11:40:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:40:41,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-22 11:40:41,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:41,161 INFO L225 Difference]: With dead ends: 115 [2020-12-22 11:40:41,162 INFO L226 Difference]: Without dead ends: 69 [2020-12-22 11:40:41,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:40:41,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-22 11:40:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-22 11:40:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-22 11:40:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2020-12-22 11:40:41,189 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2020-12-22 11:40:41,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:41,190 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2020-12-22 11:40:41,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:40:41,190 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2020-12-22 11:40:41,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 11:40:41,192 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:41,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:41,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:40:41,193 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:41,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:41,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2020-12-22 11:40:41,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:41,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398180736] [2020-12-22 11:40:41,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:41,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398180736] [2020-12-22 11:40:41,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:41,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:40:41,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006521477] [2020-12-22 11:40:41,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:40:41,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:41,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:40:41,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:40:41,633 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand 4 states. [2020-12-22 11:40:41,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:41,745 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2020-12-22 11:40:41,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:40:41,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-22 11:40:41,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:41,751 INFO L225 Difference]: With dead ends: 168 [2020-12-22 11:40:41,751 INFO L226 Difference]: Without dead ends: 113 [2020-12-22 11:40:41,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:40:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-22 11:40:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2020-12-22 11:40:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-22 11:40:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2020-12-22 11:40:41,765 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2020-12-22 11:40:41,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:41,766 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2020-12-22 11:40:41,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:40:41,766 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2020-12-22 11:40:41,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 11:40:41,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:41,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:41,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:40:41,771 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:41,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2020-12-22 11:40:41,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:41,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537804929] [2020-12-22 11:40:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:42,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:42,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537804929] [2020-12-22 11:40:42,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:42,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:40:42,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935081467] [2020-12-22 11:40:42,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:40:42,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:42,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:40:42,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:40:42,151 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 4 states. [2020-12-22 11:40:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:42,230 INFO L93 Difference]: Finished difference Result 142 states and 173 transitions. [2020-12-22 11:40:42,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:40:42,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-22 11:40:42,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:42,234 INFO L225 Difference]: With dead ends: 142 [2020-12-22 11:40:42,234 INFO L226 Difference]: Without dead ends: 93 [2020-12-22 11:40:42,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:40:42,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-22 11:40:42,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2020-12-22 11:40:42,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-22 11:40:42,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2020-12-22 11:40:42,258 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2020-12-22 11:40:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:42,258 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2020-12-22 11:40:42,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:40:42,259 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2020-12-22 11:40:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 11:40:42,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:42,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:42,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:40:42,264 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:42,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:42,266 INFO L82 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2020-12-22 11:40:42,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:42,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206070286] [2020-12-22 11:40:42,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:46,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206070286] [2020-12-22 11:40:46,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:46,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:40:46,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889995156] [2020-12-22 11:40:46,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:40:46,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:46,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:40:46,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:40:46,236 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand 6 states. [2020-12-22 11:40:48,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:48,595 INFO L93 Difference]: Finished difference Result 77 states and 92 transitions. [2020-12-22 11:40:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:40:48,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-12-22 11:40:48,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:48,597 INFO L225 Difference]: With dead ends: 77 [2020-12-22 11:40:48,598 INFO L226 Difference]: Without dead ends: 75 [2020-12-22 11:40:48,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:40:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-12-22 11:40:48,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-12-22 11:40:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-12-22 11:40:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2020-12-22 11:40:48,612 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 37 [2020-12-22 11:40:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:48,612 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2020-12-22 11:40:48,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:40:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2020-12-22 11:40:48,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 11:40:48,619 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:48,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:48,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:40:48,620 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:48,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:48,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1363323995, now seen corresponding path program 1 times [2020-12-22 11:40:48,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:48,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640103561] [2020-12-22 11:40:48,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:53,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640103561] [2020-12-22 11:40:53,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:53,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:40:53,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945120339] [2020-12-22 11:40:53,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:40:53,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:53,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:40:53,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:40:53,251 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand 6 states. [2020-12-22 11:40:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:53,407 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2020-12-22 11:40:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:40:53,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-12-22 11:40:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:53,408 INFO L225 Difference]: With dead ends: 75 [2020-12-22 11:40:53,409 INFO L226 Difference]: Without dead ends: 73 [2020-12-22 11:40:53,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:40:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-22 11:40:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-22 11:40:53,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-22 11:40:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2020-12-22 11:40:53,414 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 39 [2020-12-22 11:40:53,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:53,414 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2020-12-22 11:40:53,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:40:53,415 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2020-12-22 11:40:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 11:40:53,415 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:53,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:53,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:40:53,416 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:53,417 INFO L82 PathProgramCache]: Analyzing trace with hash -189203641, now seen corresponding path program 1 times [2020-12-22 11:40:53,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:53,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658346490] [2020-12-22 11:40:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:54,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:54,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658346490] [2020-12-22 11:40:54,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:54,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:40:54,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958272127] [2020-12-22 11:40:54,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:40:54,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:54,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:40:54,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:40:54,028 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 5 states. [2020-12-22 11:40:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:40:56,339 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2020-12-22 11:40:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:40:56,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-22 11:40:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:40:56,341 INFO L225 Difference]: With dead ends: 73 [2020-12-22 11:40:56,341 INFO L226 Difference]: Without dead ends: 71 [2020-12-22 11:40:56,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:40:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-22 11:40:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-12-22 11:40:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-22 11:40:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2020-12-22 11:40:56,352 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 41 [2020-12-22 11:40:56,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:40:56,378 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2020-12-22 11:40:56,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:40:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2020-12-22 11:40:56,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 11:40:56,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:40:56,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:40:56,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:40:56,382 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:40:56,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:40:56,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1435942007, now seen corresponding path program 1 times [2020-12-22 11:40:56,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:40:56,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117619825] [2020-12-22 11:40:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:40:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:40:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:40:59,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117619825] [2020-12-22 11:40:59,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:40:59,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 11:40:59,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137885008] [2020-12-22 11:40:59,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:40:59,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:40:59,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:40:59,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:40:59,462 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 6 states. [2020-12-22 11:41:01,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:41:01,803 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2020-12-22 11:41:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:41:01,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-12-22 11:41:01,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:41:01,804 INFO L225 Difference]: With dead ends: 71 [2020-12-22 11:41:01,804 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:41:01,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:41:01,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:41:01,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:41:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:41:01,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:41:01,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-12-22 11:41:01,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:41:01,806 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:41:01,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:41:01,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:41:01,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:41:01,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:41:01,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 11:41:01,892 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,892 INFO L189 CegarLoopUtils]: For program point L7063(lines 7063 7067) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point L7055(lines 7055 7068) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point L6609(lines 6609 6614) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point L6610(lines 6610 6612) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-12-22 11:41:01,893 INFO L189 CegarLoopUtils]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point L6610-2(lines 6610 6612) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point L7205-2(lines 7205 7207) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point L7205(line 7205) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point L7205-4(lines 7205 7207) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,894 INFO L189 CegarLoopUtils]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L7181-3(line 7181) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L7181(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,895 INFO L189 CegarLoopUtils]: For program point L7181-7(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,896 INFO L189 CegarLoopUtils]: For program point L7181-6(lines 7181 7182) no Hoare annotation was computed. [2020-12-22 11:41:01,896 INFO L189 CegarLoopUtils]: For program point L7181-4(lines 7181 7182) no Hoare annotation was computed. [2020-12-22 11:41:01,896 INFO L185 CegarLoopUtils]: At program point L261(line 261) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) [2020-12-22 11:41:01,896 INFO L189 CegarLoopUtils]: For program point L7181-11(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,896 INFO L185 CegarLoopUtils]: At program point L6884(lines 6883 6885) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) [2020-12-22 11:41:01,897 INFO L189 CegarLoopUtils]: For program point L7181-9(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,897 INFO L189 CegarLoopUtils]: For program point L7181-14(line 7181) no Hoare annotation was computed. [2020-12-22 11:41:01,897 INFO L189 CegarLoopUtils]: For program point L7181-13(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,897 INFO L185 CegarLoopUtils]: At program point L7181-12(lines 7179 7185) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) [2020-12-22 11:41:01,897 INFO L189 CegarLoopUtils]: For program point L7181-19(lines 7181 7182) no Hoare annotation was computed. [2020-12-22 11:41:01,897 INFO L189 CegarLoopUtils]: For program point L7181-17(lines 7181 7182) no Hoare annotation was computed. [2020-12-22 11:41:01,897 INFO L189 CegarLoopUtils]: For program point L7181-16(line 7181) no Hoare annotation was computed. [2020-12-22 11:41:01,898 INFO L189 CegarLoopUtils]: For program point L7181-22(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,898 INFO L189 CegarLoopUtils]: For program point L7181-20(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,898 INFO L185 CegarLoopUtils]: At program point L7181-25(lines 7179 7185) the Hoare annotation is: (and (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.offset |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset|) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.offset 0) (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.base |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|)) [2020-12-22 11:41:01,898 INFO L189 CegarLoopUtils]: For program point L7181-24(lines 7181 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,898 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 11:41:01,898 INFO L189 CegarLoopUtils]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-12-22 11:41:01,898 INFO L189 CegarLoopUtils]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2020-12-22 11:41:01,899 INFO L189 CegarLoopUtils]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-12-22 11:41:01,899 INFO L189 CegarLoopUtils]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2020-12-22 11:41:01,899 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,899 INFO L189 CegarLoopUtils]: For program point L7184-2(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,899 INFO L189 CegarLoopUtils]: For program point L7184(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,899 INFO L189 CegarLoopUtils]: For program point L7184-6(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-4(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-3(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-9(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-8(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-13(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-12(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-11(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 11:41:01,900 INFO L189 CegarLoopUtils]: For program point L7184-17(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L7184-15(line 7184) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223-1(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223-3(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223-7(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223-9(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,901 INFO L189 CegarLoopUtils]: For program point L223-10(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,902 INFO L192 CegarLoopUtils]: At program point L8779(line 8779) the Hoare annotation is: true [2020-12-22 11:41:01,902 INFO L185 CegarLoopUtils]: At program point L6880(lines 6876 6881) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) [2020-12-22 11:41:01,902 INFO L189 CegarLoopUtils]: For program point L8763(lines 8763 8778) no Hoare annotation was computed. [2020-12-22 11:41:01,902 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-22 11:41:01,902 INFO L189 CegarLoopUtils]: For program point L7203(lines 7203 7216) no Hoare annotation was computed. [2020-12-22 11:41:01,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:41:01 BoogieIcfgContainer [2020-12-22 11:41:01,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:41:01,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:41:01,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:41:01,935 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:41:01,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:40:39" (3/4) ... [2020-12-22 11:41:01,939 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:41:01,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2020-12-22 11:41:01,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2020-12-22 11:41:01,978 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-12-22 11:41:01,979 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-22 11:41:01,981 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-22 11:41:01,982 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-22 11:41:01,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 11:41:01,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:41:03,107 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/aws-c-common/aws_byte_buf_clean_up_harness.i-witness.graphml [2020-12-22 11:41:03,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:41:03,110 INFO L168 Benchmark]: Toolchain (without parser) took 39027.49 ms. Allocated memory was 151.0 MB in the beginning and 587.2 MB in the end (delta: 436.2 MB). Free memory was 117.5 MB in the beginning and 228.2 MB in the end (delta: -110.7 MB). Peak memory consumption was 408.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:41:03,110 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.5 MB in the end (delta: 91.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:41:03,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4835.70 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 117.3 MB in the beginning and 122.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 115.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:41:03,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 330.87 ms. Allocated memory is still 183.5 MB. Free memory was 122.5 MB in the beginning and 110.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:41:03,112 INFO L168 Benchmark]: Boogie Preprocessor took 111.55 ms. Allocated memory is still 183.5 MB. Free memory was 110.9 MB in the beginning and 103.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:41:03,113 INFO L168 Benchmark]: RCFGBuilder took 9970.56 ms. Allocated memory was 183.5 MB in the beginning and 316.7 MB in the end (delta: 133.2 MB). Free memory was 103.1 MB in the beginning and 209.0 MB in the end (delta: -105.9 MB). Peak memory consumption was 165.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:41:03,113 INFO L168 Benchmark]: TraceAbstraction took 22596.83 ms. Allocated memory was 316.7 MB in the beginning and 587.2 MB in the end (delta: 270.5 MB). Free memory was 208.5 MB in the beginning and 365.6 MB in the end (delta: -157.1 MB). Peak memory consumption was 113.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:41:03,114 INFO L168 Benchmark]: Witness Printer took 1173.72 ms. Allocated memory is still 587.2 MB. Free memory was 365.6 MB in the beginning and 228.2 MB in the end (delta: 137.4 MB). Peak memory consumption was 219.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:41:03,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.5 MB in the end (delta: 91.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 4835.70 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 117.3 MB in the beginning and 122.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 115.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 330.87 ms. Allocated memory is still 183.5 MB. Free memory was 122.5 MB in the beginning and 110.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.55 ms. Allocated memory is still 183.5 MB. Free memory was 110.9 MB in the beginning and 103.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 9970.56 ms. Allocated memory was 183.5 MB in the beginning and 316.7 MB in the end (delta: 133.2 MB). Free memory was 103.1 MB in the beginning and 209.0 MB in the end (delta: -105.9 MB). Peak memory consumption was 165.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22596.83 ms. Allocated memory was 316.7 MB in the beginning and 587.2 MB in the end (delta: 270.5 MB). Free memory was 208.5 MB in the beginning and 365.6 MB in the end (delta: -157.1 MB). Peak memory consumption was 113.4 MB. Max. memory is 8.0 GB. * Witness Printer took 1173.72 ms. Allocated memory is still 587.2 MB. Free memory was 365.6 MB in the beginning and 228.2 MB in the end (delta: 137.4 MB). Peak memory consumption was 219.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 7179]: Loop Invariant Derived loop invariant: buf == 0 && !(buf == 0) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: buf == 0 && !(buf == 0) - InvariantResult [Line: 6876]: Loop Invariant Derived loop invariant: buf == 0 && !(buf == 0) - InvariantResult [Line: 8779]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: buf == 0 && !(buf == 0) - InvariantResult [Line: 7179]: Loop Invariant Derived loop invariant: ((buf == buf && !(buf == 0)) && buf == 0) && buf == buf - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 619 SDtfs, 572 SDslu, 912 SDs, 0 SdLazy, 239 SolverSat, 20 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 56 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 47 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 11.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 37214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...