./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:45:11,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:45:11,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:45:11,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:45:11,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:45:11,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:45:11,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:45:11,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:45:11,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:45:11,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:45:11,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:45:11,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:45:11,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:45:11,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:45:11,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:45:11,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:45:11,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:45:11,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:45:11,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:45:11,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:45:11,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:45:11,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:45:11,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:45:11,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:45:11,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:45:11,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:45:11,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:45:11,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:45:11,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:45:11,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:45:11,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:45:11,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:45:11,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:45:11,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:45:11,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:45:11,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:45:11,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:45:11,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:45:11,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:45:11,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:45:11,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:45:11,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:45:11,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:45:11,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:45:11,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:45:11,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:45:11,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:45:11,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:45:11,204 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:45:11,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:45:11,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:45:11,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:45:11,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:45:11,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:45:11,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:45:11,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:45:11,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:45:11,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:45:11,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:45:11,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:45:11,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:45:11,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:45:11,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:45:11,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:45:11,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:45:11,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:45:11,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:45:11,207 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:45:11,207 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:45:11,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:45:11,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:45:11,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2021-11-05 13:45:11,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:45:11,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:45:11,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:45:11,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:45:11,505 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:45:11,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-11-05 13:45:11,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a653c06/1e7b09f5914446d3aa72caa47cd99817/FLAGb293ff370 [2021-11-05 13:45:12,264 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:45:12,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-11-05 13:45:12,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a653c06/1e7b09f5914446d3aa72caa47cd99817/FLAGb293ff370 [2021-11-05 13:45:12,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a653c06/1e7b09f5914446d3aa72caa47cd99817 [2021-11-05 13:45:12,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:45:12,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:45:12,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:45:12,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:45:12,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:45:12,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:45:12" (1/1) ... [2021-11-05 13:45:12,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7817e0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:12, skipping insertion in model container [2021-11-05 13:45:12,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:45:12" (1/1) ... [2021-11-05 13:45:12,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:45:12,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:45:12,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-11-05 13:45:12,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-11-05 13:45:12,899 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:45:12,903 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:45:13,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,659 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:13,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:45:13,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:45:13,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:45:13,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:45:13,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:45:13,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:45:13,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:45:13,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:45:13,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:45:13,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:45:14,045 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:45:14,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:45:14,236 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:45:14,251 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-11-05 13:45:14,251 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-11-05 13:45:14,252 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:45:14,253 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:45:14,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,276 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,284 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,284 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:45:14,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:45:14,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:45:14,317 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:45:14,317 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:45:14,317 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:45:14,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:45:14,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:45:14,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:45:14,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:45:14,335 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:45:14,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:45:14,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:45:14,602 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:45:14,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14 WrapperNode [2021-11-05 13:45:14,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:45:14,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:45:14,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:45:14,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:45:14,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:45:14,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:45:14,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:45:14,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:45:14,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:45:14,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:45:14,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:45:14,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:45:14,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (1/1) ... [2021-11-05 13:45:14,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:45:14,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:45:14,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:45:14,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:45:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:45:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:45:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 13:45:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:45:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:45:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:45:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 13:45:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:45:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 13:45:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:45:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:45:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:45:22,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:45:22,351 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-11-05 13:45:22,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:45:22 BoogieIcfgContainer [2021-11-05 13:45:22,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:45:22,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:45:22,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:45:22,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:45:22,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:45:12" (1/3) ... [2021-11-05 13:45:22,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b33768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:45:22, skipping insertion in model container [2021-11-05 13:45:22,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:45:14" (2/3) ... [2021-11-05 13:45:22,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b33768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:45:22, skipping insertion in model container [2021-11-05 13:45:22,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:45:22" (3/3) ... [2021-11-05 13:45:22,360 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2021-11-05 13:45:22,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:45:22,365 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-05 13:45:22,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:45:22,414 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:45:22,414 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-05 13:45:22,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:45:22,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:45:22,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:45:22,439 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:45:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:45:22,447 INFO L85 PathProgramCache]: Analyzing trace with hash 254888643, now seen corresponding path program 1 times [2021-11-05 13:45:22,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:45:22,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598761886] [2021-11-05 13:45:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:45:22,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:45:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:45:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:45:22,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:45:22,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598761886] [2021-11-05 13:45:22,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598761886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:45:22,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:45:22,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:45:22,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396146349] [2021-11-05 13:45:22,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:45:22,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:45:22,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:45:22,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:45:22,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:45:22,942 INFO L87 Difference]: Start difference. First operand has 59 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:22,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:45:22,961 INFO L93 Difference]: Finished difference Result 114 states and 153 transitions. [2021-11-05 13:45:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:45:22,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-05 13:45:22,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:45:22,968 INFO L225 Difference]: With dead ends: 114 [2021-11-05 13:45:22,968 INFO L226 Difference]: Without dead ends: 54 [2021-11-05 13:45:22,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:45:22,975 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:45:22,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.95ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:45:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-05 13:45:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-05 13:45:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 53 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-11-05 13:45:23,003 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 29 [2021-11-05 13:45:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:45:23,004 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-11-05 13:45:23,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-11-05 13:45:23,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:45:23,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:45:23,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:45:23,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:45:23,009 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:45:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:45:23,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1018052417, now seen corresponding path program 1 times [2021-11-05 13:45:23,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:45:23,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917716874] [2021-11-05 13:45:23,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:45:23,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:45:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:45:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:45:23,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:45:23,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917716874] [2021-11-05 13:45:23,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917716874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:45:23,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:45:23,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 13:45:23,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046083674] [2021-11-05 13:45:23,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:45:23,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 13:45:23,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:45:23,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 13:45:23,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:45:23,479 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:24,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:45:24,095 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2021-11-05 13:45:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:45:24,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-05 13:45:24,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:45:24,096 INFO L225 Difference]: With dead ends: 101 [2021-11-05 13:45:24,096 INFO L226 Difference]: Without dead ends: 92 [2021-11-05 13:45:24,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 568.77ms TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-11-05 13:45:24,098 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 522 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 179.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.87ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 197.97ms IncrementalHoareTripleChecker+Time [2021-11-05 13:45:24,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 216 Invalid, 43 Unknown, 0 Unchecked, 4.87ms Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 197.97ms Time] [2021-11-05 13:45:24,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-05 13:45:24,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 65. [2021-11-05 13:45:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.21875) internal successors, (78), 64 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2021-11-05 13:45:24,105 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 29 [2021-11-05 13:45:24,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:45:24,106 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2021-11-05 13:45:24,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2021-11-05 13:45:24,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:45:24,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:45:24,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:45:24,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:45:24,110 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:45:24,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:45:24,112 INFO L85 PathProgramCache]: Analyzing trace with hash -261811261, now seen corresponding path program 1 times [2021-11-05 13:45:24,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:45:24,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162946109] [2021-11-05 13:45:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:45:24,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:45:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:45:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:45:24,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:45:24,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162946109] [2021-11-05 13:45:24,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162946109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:45:24,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:45:24,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 13:45:24,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043372535] [2021-11-05 13:45:24,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:45:24,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:45:24,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:45:24,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:45:24,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:45:24,314 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:24,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:45:24,342 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2021-11-05 13:45:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:45:24,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-05 13:45:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:45:24,344 INFO L225 Difference]: With dead ends: 92 [2021-11-05 13:45:24,344 INFO L226 Difference]: Without dead ends: 54 [2021-11-05 13:45:24,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:45:24,346 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 32 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.01ms IncrementalHoareTripleChecker+Time [2021-11-05 13:45:24,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 159 Invalid, 4 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 14.01ms Time] [2021-11-05 13:45:24,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-05 13:45:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-05 13:45:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-11-05 13:45:24,352 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 29 [2021-11-05 13:45:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:45:24,353 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-11-05 13:45:24,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-11-05 13:45:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 13:45:24,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:45:24,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:45:24,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:45:24,356 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:45:24,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:45:24,357 INFO L85 PathProgramCache]: Analyzing trace with hash -262226708, now seen corresponding path program 1 times [2021-11-05 13:45:24,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:45:24,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896377633] [2021-11-05 13:45:24,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:45:24,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:45:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:45:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:45:24,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:45:24,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896377633] [2021-11-05 13:45:24,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896377633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:45:24,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:45:24,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 13:45:24,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410385448] [2021-11-05 13:45:24,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:45:24,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 13:45:24,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:45:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 13:45:24,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:45:24,723 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:25,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:45:25,049 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2021-11-05 13:45:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 13:45:25,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-05 13:45:25,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:45:25,053 INFO L225 Difference]: With dead ends: 85 [2021-11-05 13:45:25,053 INFO L226 Difference]: Without dead ends: 54 [2021-11-05 13:45:25,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 361.48ms TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-11-05 13:45:25,054 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 288 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.60ms IncrementalHoareTripleChecker+Time [2021-11-05 13:45:25,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 158 Invalid, 32 Unknown, 0 Unchecked, 1.36ms Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 95.60ms Time] [2021-11-05 13:45:25,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-05 13:45:25,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-05 13:45:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:25,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-11-05 13:45:25,058 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 41 [2021-11-05 13:45:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:45:25,058 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-11-05 13:45:25,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-11-05 13:45:25,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-05 13:45:25,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:45:25,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:45:25,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 13:45:25,059 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:45:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:45:25,060 INFO L85 PathProgramCache]: Analyzing trace with hash 737232577, now seen corresponding path program 1 times [2021-11-05 13:45:25,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:45:25,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832431056] [2021-11-05 13:45:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:45:25,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:45:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:45:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:45:25,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:45:25,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832431056] [2021-11-05 13:45:25,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832431056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:45:25,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:45:25,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:45:25,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62376489] [2021-11-05 13:45:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:45:25,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:45:25,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:45:25,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:45:25,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:45:25,755 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:25,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:45:25,886 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2021-11-05 13:45:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 13:45:25,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-05 13:45:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:45:25,887 INFO L225 Difference]: With dead ends: 54 [2021-11-05 13:45:25,887 INFO L226 Difference]: Without dead ends: 0 [2021-11-05 13:45:25,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 222.55ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:45:25,888 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.85ms IncrementalHoareTripleChecker+Time [2021-11-05 13:45:25,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 8 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 26.85ms Time] [2021-11-05 13:45:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-05 13:45:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-05 13:45:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:25,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-05 13:45:25,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-11-05 13:45:25,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:45:25,889 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-05 13:45:25,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:45:25,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-05 13:45:25,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-05 13:45:25,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-05 13:45:25,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 13:45:25,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-05 13:45:25,913 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: false [2021-11-05 13:45:25,914 INFO L858 garLoopResultBuilder]: For program point L9210(lines 9210 9215) no Hoare annotation was computed. [2021-11-05 13:45:25,914 INFO L858 garLoopResultBuilder]: For program point L9549(lines 9549 9551) no Hoare annotation was computed. [2021-11-05 13:45:25,914 INFO L854 garLoopResultBuilder]: At program point L6890(lines 6889 6891) the Hoare annotation is: false [2021-11-05 13:45:25,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-05 13:45:25,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-05 13:45:25,914 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:45:25,914 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L235(line 235) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L9212(lines 9212 9214) no Hoare annotation was computed. [2021-11-05 13:45:25,915 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-05 13:45:25,916 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-05 13:45:25,916 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,916 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-05 13:45:25,916 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,916 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,916 INFO L858 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-05 13:45:25,916 INFO L854 garLoopResultBuilder]: At program point L6256-6(lines 6252 6257) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256))) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) [2021-11-05 13:45:25,916 INFO L858 garLoopResultBuilder]: For program point L7115(lines 7115 7121) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L858 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L858 garLoopResultBuilder]: For program point L6256-9(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L858 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L858 garLoopResultBuilder]: For program point L6256-10(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L858 garLoopResultBuilder]: For program point L6256-7(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L858 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-11-05 13:45:25,917 INFO L854 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-11-05 13:45:25,918 INFO L854 garLoopResultBuilder]: At program point L6256-13(lines 6252 6257) the Hoare annotation is: (and (let ((.cse0 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse1 (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0))) (.cse2 (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0))) (.cse3 (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0))) (.cse4 (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)))) (or (and .cse0 (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_#t~ite1547.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_~str.base 0)) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4))) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256)))) [2021-11-05 13:45:25,918 INFO L858 garLoopResultBuilder]: For program point L6256-12(line 6256) no Hoare annotation was computed. [2021-11-05 13:45:25,918 INFO L858 garLoopResultBuilder]: For program point L6810(lines 6810 6811) no Hoare annotation was computed. [2021-11-05 13:45:25,918 INFO L858 garLoopResultBuilder]: For program point L8734(lines 8734 8751) no Hoare annotation was computed. [2021-11-05 13:45:25,918 INFO L858 garLoopResultBuilder]: For program point L6810-2(lines 6810 6811) no Hoare annotation was computed. [2021-11-05 13:45:25,918 INFO L854 garLoopResultBuilder]: At program point L6803(lines 6800 6804) the Hoare annotation is: false [2021-11-05 13:45:25,918 INFO L861 garLoopResultBuilder]: At program point L9553(line 9553) the Hoare annotation is: true [2021-11-05 13:45:25,918 INFO L854 garLoopResultBuilder]: At program point L6886(lines 6882 6887) the Hoare annotation is: false [2021-11-05 13:45:25,919 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-05 13:45:25,919 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-05 13:45:25,919 INFO L854 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (let ((.cse0 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse1 (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0))) (.cse2 (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0))) (.cse3 (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0))) (.cse4 (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)))) (or (and .cse0 (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_#t~ite1547.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_~str.base 0)) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4))) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256)))) [2021-11-05 13:45:25,919 INFO L858 garLoopResultBuilder]: For program point L9537(lines 9537 9552) no Hoare annotation was computed. [2021-11-05 13:45:25,919 INFO L858 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-11-05 13:45:25,919 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-05 13:45:25,919 INFO L858 garLoopResultBuilder]: For program point L9546(lines 9546 9547) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L9546-2(lines 9546 9547) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L7069(lines 7069 7073) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L9208(lines 9208 9216) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L7061(lines 7061 7074) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L9209(line 9209) no Hoare annotation was computed. [2021-11-05 13:45:25,920 INFO L858 garLoopResultBuilder]: For program point L9209-2(line 9209) no Hoare annotation was computed. [2021-11-05 13:45:25,921 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-11-05 13:45:25,921 INFO L854 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: false [2021-11-05 13:45:25,921 INFO L854 garLoopResultBuilder]: At program point L6245(lines 6242 6246) the Hoare annotation is: (and (let ((.cse0 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse1 (not (= ULTIMATE.start_aws_string_destroy_secure_harness_~str~3.base 0))) (.cse2 (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0))) (.cse3 (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0))) (.cse4 (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)))) (or (and .cse0 (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_#t~ite1547.base| 0)) (not (= ULTIMATE.start_aws_string_destroy_secure_~str.base 0)) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4))) (= ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 (* 256 (div ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0 256)))) [2021-11-05 13:45:25,923 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-05 13:45:25,924 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 13:45:25,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 01:45:25 BoogieIcfgContainer [2021-11-05 13:45:25,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 13:45:25,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 13:45:25,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 13:45:25,936 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 13:45:25,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:45:22" (3/4) ... [2021-11-05 13:45:25,938 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-05 13:45:25,950 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 131 nodes and edges [2021-11-05 13:45:25,951 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-11-05 13:45:25,951 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-05 13:45:25,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-05 13:45:25,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-05 13:45:25,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-05 13:45:25,954 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-05 13:45:25,955 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-05 13:45:25,972 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) [2021-11-05 13:45:25,973 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(nondet_parameter ? str : ((void *)0) == 0)) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) || ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0))) && nondet_parameter == 256 * (nondet_parameter / 256) [2021-11-05 13:45:25,973 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(nondet_parameter ? str : ((void *)0) == 0)) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) || ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0))) && nondet_parameter == 256 * (nondet_parameter / 256) [2021-11-05 13:45:25,974 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(nondet_parameter ? str : ((void *)0) == 0)) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) || ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0))) && nondet_parameter == 256 * (nondet_parameter / 256) [2021-11-05 13:45:26,583 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-05 13:45:26,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 13:45:26,584 INFO L158 Benchmark]: Toolchain (without parser) took 14042.20ms. Allocated memory was 56.6MB in the beginning and 453.0MB in the end (delta: 396.4MB). Free memory was 26.2MB in the beginning and 303.0MB in the end (delta: -276.8MB). Peak memory consumption was 301.9MB. Max. memory is 16.1GB. [2021-11-05 13:45:26,584 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 56.6MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:45:26,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2057.27ms. Allocated memory was 56.6MB in the beginning and 104.9MB in the end (delta: 48.2MB). Free memory was 26.0MB in the beginning and 43.5MB in the end (delta: -17.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2021-11-05 13:45:26,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 174.84ms. Allocated memory is still 104.9MB. Free memory was 43.5MB in the beginning and 31.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-05 13:45:26,585 INFO L158 Benchmark]: Boogie Preprocessor took 104.66ms. Allocated memory is still 104.9MB. Free memory was 31.5MB in the beginning and 50.6MB in the end (delta: -19.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-11-05 13:45:26,585 INFO L158 Benchmark]: RCFGBuilder took 7468.74ms. Allocated memory was 104.9MB in the beginning and 377.5MB in the end (delta: 272.6MB). Free memory was 50.6MB in the beginning and 120.0MB in the end (delta: -69.4MB). Peak memory consumption was 223.1MB. Max. memory is 16.1GB. [2021-11-05 13:45:26,585 INFO L158 Benchmark]: TraceAbstraction took 3581.51ms. Allocated memory is still 377.5MB. Free memory was 120.0MB in the beginning and 291.7MB in the end (delta: -171.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:45:26,586 INFO L158 Benchmark]: Witness Printer took 647.62ms. Allocated memory was 377.5MB in the beginning and 453.0MB in the end (delta: 75.5MB). Free memory was 291.7MB in the beginning and 303.0MB in the end (delta: -11.3MB). Peak memory consumption was 245.8MB. Max. memory is 16.1GB. [2021-11-05 13:45:26,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 56.6MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2057.27ms. Allocated memory was 56.6MB in the beginning and 104.9MB in the end (delta: 48.2MB). Free memory was 26.0MB in the beginning and 43.5MB in the end (delta: -17.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 174.84ms. Allocated memory is still 104.9MB. Free memory was 43.5MB in the beginning and 31.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.66ms. Allocated memory is still 104.9MB. Free memory was 31.5MB in the beginning and 50.6MB in the end (delta: -19.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * RCFGBuilder took 7468.74ms. Allocated memory was 104.9MB in the beginning and 377.5MB in the end (delta: 272.6MB). Free memory was 50.6MB in the beginning and 120.0MB in the end (delta: -69.4MB). Peak memory consumption was 223.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3581.51ms. Allocated memory is still 377.5MB. Free memory was 120.0MB in the beginning and 291.7MB in the end (delta: -171.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 647.62ms. Allocated memory was 377.5MB in the beginning and 453.0MB in the end (delta: 75.5MB). Free memory was 291.7MB in the beginning and 303.0MB in the end (delta: -11.3MB). Peak memory consumption was 245.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3517.09ms, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 16.56ms, AutomataDifference: 1175.63ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 22.00ms, InitialAbstractionConstructionTime: 8.15ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 847 SdHoareTripleChecker+Valid, 334.43ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 847 mSDsluCounter, 611 SdHoareTripleChecker+Invalid, 305.49ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 289 mSDtfsCounter, 87 mSolverCounterSat, 9.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1169.78ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=2, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 32.44ms AutomataMinimizationTime, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 215 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 6.95ms HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.26ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 67.68ms SsaConstructionTime, 695.46ms SatisfiabilityAnalysisTime, 1277.31ms InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(nondet_parameter ? str : ((void *)0) == 0)) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) || ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0))) && nondet_parameter == 256 * (nondet_parameter / 256) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 9553]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6889]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6242]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(nondet_parameter ? str : ((void *)0) == 0)) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) || ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0))) && nondet_parameter == 256 * (nondet_parameter / 256) - InvariantResult [Line: 6882]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && nondet_parameter == 256 * (nondet_parameter / 256)) && !(str == 0) - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(nondet_parameter ? str : ((void *)0) == 0)) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) || ((((!(\result == 0) && !(str == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0))) && nondet_parameter == 256 * (nondet_parameter / 256) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6800]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-05 13:45:26,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE