./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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_new_from_string_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 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:04:15,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:04:15,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:04:15,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:04:15,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:04:15,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:04:15,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:04:15,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:04:15,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:04:15,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:04:15,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:04:15,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:04:15,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:04:15,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:04:15,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:04:15,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:04:15,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:04:15,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:04:15,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:04:15,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:04:15,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:04:15,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:04:15,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:04:15,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:04:15,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:04:15,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:04:15,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:04:15,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:04:15,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:04:15,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:04:15,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:04:15,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:04:15,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:04:15,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:04:15,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:04:15,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:04:15,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:04:15,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:04:15,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:04:15,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:04:15,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:04:15,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:04:15,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:04:15,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:04:15,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:04:15,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:04:15,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:04:15,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:04:15,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:04:15,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:04:15,267 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:04:15,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:04:15,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:04:15,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:04:15,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:04:15,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:04:15,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:04:15,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:04:15,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:04:15,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:04:15,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:04:15,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:04:15,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:04:15,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:04:15,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:04:15,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:04:15,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:04:15,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:04:15,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:04:15,271 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:04:15,271 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:04:15,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:04:15,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:04:15,271 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 [2021-12-22 14:04:15,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:04:15,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:04:15,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:04:15,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:04:15,487 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:04:15,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-12-22 14:04:15,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e68a489a1/acd350f073cd40428532a8c83af40a1e/FLAG714c3749e [2021-12-22 14:04:16,147 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:04:16,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-12-22 14:04:16,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e68a489a1/acd350f073cd40428532a8c83af40a1e/FLAG714c3749e [2021-12-22 14:04:16,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e68a489a1/acd350f073cd40428532a8c83af40a1e [2021-12-22 14:04:16,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:04:16,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:04:16,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:04:16,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:04:16,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:04:16,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:04:16" (1/1) ... [2021-12-22 14:04:16,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3c50af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:16, skipping insertion in model container [2021-12-22 14:04:16,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:04:16" (1/1) ... [2021-12-22 14:04:16,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:04:16,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:04:16,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-12-22 14:04:16,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-12-22 14:04:17,335 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,336 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,336 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,337 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,343 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,354 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,354 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,355 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,356 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,582 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 14:04:17,583 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 14:04:17,584 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 14:04:17,584 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 14:04:17,585 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 14:04:17,588 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 14:04:17,589 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 14:04:17,589 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 14:04:17,591 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 14:04:17,592 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 14:04:17,713 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 14:04:17,817 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,818 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:04:17,929 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:04:17,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-12-22 14:04:17,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-12-22 14:04:17,995 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,996 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:17,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:18,003 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:18,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:18,005 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:18,006 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:18,031 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 14:04:18,031 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 14:04:18,032 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 14:04:18,032 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 14:04:18,032 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 14:04:18,033 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 14:04:18,033 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 14:04:18,033 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 14:04:18,034 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 14:04:18,034 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 14:04:18,046 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 14:04:18,111 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:18,112 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:04:18,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:04:18,312 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:04:18,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18 WrapperNode [2021-12-22 14:04:18,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:04:18,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:04:18,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:04:18,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:04:18,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,474 INFO L137 Inliner]: procedures = 690, calls = 2740, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 831 [2021-12-22 14:04:18,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:04:18,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:04:18,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:04:18,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:04:18,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:04:18,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:04:18,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:04:18,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:04:18,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (1/1) ... [2021-12-22 14:04:18,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:04:18,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:18,604 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) [2021-12-22 14:04:18,651 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 [2021-12-22 14:04:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-22 14:04:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-22 14:04:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:04:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-22 14:04:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-22 14:04:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-12-22 14:04:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-22 14:04:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-22 14:04:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:04:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:04:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:04:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:04:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:04:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-22 14:04:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-22 14:04:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-22 14:04:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-22 14:04:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:04:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:04:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:04:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:04:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:04:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-22 14:04:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-22 14:04:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:04:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:04:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-22 14:04:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-22 14:04:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:04:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:04:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-22 14:04:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-22 14:04:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:04:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-22 14:04:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-22 14:04:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:04:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:04:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2021-12-22 14:04:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2021-12-22 14:04:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-22 14:04:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-22 14:04:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-22 14:04:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-22 14:04:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-22 14:04:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-22 14:04:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:04:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-12-22 14:04:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_string [2021-12-22 14:04:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_string [2021-12-22 14:04:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:04:18,930 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:04:18,931 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:04:19,042 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2021-12-22 14:04:19,657 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:04:19,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:04:19,665 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 14:04:19,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:04:19 BoogieIcfgContainer [2021-12-22 14:04:19,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:04:19,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:04:19,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:04:19,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:04:19,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:04:16" (1/3) ... [2021-12-22 14:04:19,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d3e37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:04:19, skipping insertion in model container [2021-12-22 14:04:19,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:18" (2/3) ... [2021-12-22 14:04:19,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d3e37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:04:19, skipping insertion in model container [2021-12-22 14:04:19,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:04:19" (3/3) ... [2021-12-22 14:04:19,673 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_string_harness.i [2021-12-22 14:04:19,680 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:04:19,680 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:04:19,717 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:04:19,722 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 [2021-12-22 14:04:19,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:04:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 97 states have (on average 1.175257731958763) internal successors, (114), 97 states have internal predecessors, (114), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-12-22 14:04:19,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-22 14:04:19,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:19,743 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:19,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:19,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1670706302, now seen corresponding path program 1 times [2021-12-22 14:04:19,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:19,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713039339] [2021-12-22 14:04:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:19,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:04:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:04:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 14:04:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:04:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:04:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:04:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-22 14:04:20,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:20,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713039339] [2021-12-22 14:04:20,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713039339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:20,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:20,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:04:20,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814744755] [2021-12-22 14:04:20,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:20,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:04:20,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:20,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:04:20,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:04:20,346 INFO L87 Difference]: Start difference. First operand has 153 states, 97 states have (on average 1.175257731958763) internal successors, (114), 97 states have internal predecessors, (114), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 14:04:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:20,709 INFO L93 Difference]: Finished difference Result 317 states and 419 transitions. [2021-12-22 14:04:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:04:20,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2021-12-22 14:04:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:20,718 INFO L225 Difference]: With dead ends: 317 [2021-12-22 14:04:20,718 INFO L226 Difference]: Without dead ends: 164 [2021-12-22 14:04:20,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:04:20,724 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:20,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 264 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:04:20,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-22 14:04:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 147. [2021-12-22 14:04:20,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 91 states have (on average 1.164835164835165) internal successors, (106), 92 states have internal predecessors, (106), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-12-22 14:04:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 183 transitions. [2021-12-22 14:04:20,759 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 183 transitions. Word has length 80 [2021-12-22 14:04:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:20,759 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 183 transitions. [2021-12-22 14:04:20,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 14:04:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 183 transitions. [2021-12-22 14:04:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-22 14:04:20,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:20,762 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:20,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:04:20,763 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:20,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:20,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2065694084, now seen corresponding path program 1 times [2021-12-22 14:04:20,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:20,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571142510] [2021-12-22 14:04:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:20,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:04:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:04:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 14:04:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:04:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:04:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:04:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-22 14:04:21,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:21,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571142510] [2021-12-22 14:04:21,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571142510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:21,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:21,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 14:04:21,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893077726] [2021-12-22 14:04:21,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:21,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 14:04:21,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:21,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 14:04:21,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-22 14:04:21,237 INFO L87 Difference]: Start difference. First operand 147 states and 183 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-22 14:04:22,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:22,137 INFO L93 Difference]: Finished difference Result 246 states and 315 transitions. [2021-12-22 14:04:22,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 14:04:22,138 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 80 [2021-12-22 14:04:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:22,140 INFO L225 Difference]: With dead ends: 246 [2021-12-22 14:04:22,140 INFO L226 Difference]: Without dead ends: 199 [2021-12-22 14:04:22,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-12-22 14:04:22,141 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 84 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:22,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1157 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 14:04:22,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-22 14:04:22,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 160. [2021-12-22 14:04:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 102 states have internal predecessors, (114), 42 states have call successors, (42), 16 states have call predecessors, (42), 18 states have return successors, (43), 41 states have call predecessors, (43), 41 states have call successors, (43) [2021-12-22 14:04:22,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 199 transitions. [2021-12-22 14:04:22,170 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 199 transitions. Word has length 80 [2021-12-22 14:04:22,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:22,170 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 199 transitions. [2021-12-22 14:04:22,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-22 14:04:22,171 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 199 transitions. [2021-12-22 14:04:22,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-22 14:04:22,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:22,172 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:22,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:04:22,173 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:22,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash -305918410, now seen corresponding path program 1 times [2021-12-22 14:04:22,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:22,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094822302] [2021-12-22 14:04:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:22,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:04:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:04:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 14:04:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:04:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 14:04:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:04:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:04:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-22 14:04:22,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:22,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094822302] [2021-12-22 14:04:22,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094822302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:22,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:22,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 14:04:22,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522914120] [2021-12-22 14:04:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:22,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 14:04:22,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 14:04:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:04:22,527 INFO L87 Difference]: Start difference. First operand 160 states and 199 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-22 14:04:23,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:23,171 INFO L93 Difference]: Finished difference Result 256 states and 325 transitions. [2021-12-22 14:04:23,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 14:04:23,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2021-12-22 14:04:23,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:23,177 INFO L225 Difference]: With dead ends: 256 [2021-12-22 14:04:23,177 INFO L226 Difference]: Without dead ends: 216 [2021-12-22 14:04:23,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:04:23,179 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 141 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:23,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 873 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 14:04:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-12-22 14:04:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 170. [2021-12-22 14:04:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 106 states have (on average 1.1415094339622642) internal successors, (121), 109 states have internal predecessors, (121), 42 states have call successors, (42), 16 states have call predecessors, (42), 21 states have return successors, (48), 44 states have call predecessors, (48), 41 states have call successors, (48) [2021-12-22 14:04:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 211 transitions. [2021-12-22 14:04:23,219 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 211 transitions. Word has length 95 [2021-12-22 14:04:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:23,220 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 211 transitions. [2021-12-22 14:04:23,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-22 14:04:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 211 transitions. [2021-12-22 14:04:23,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-22 14:04:23,221 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:23,222 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:23,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:04:23,222 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:23,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1176778786, now seen corresponding path program 1 times [2021-12-22 14:04:23,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:23,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744732044] [2021-12-22 14:04:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:23,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:04:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:04:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 14:04:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:04:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:04:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:04:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:04:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:04:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-22 14:04:23,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:23,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744732044] [2021-12-22 14:04:23,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744732044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:23,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:23,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-22 14:04:23,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587034647] [2021-12-22 14:04:23,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:23,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 14:04:23,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:23,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 14:04:23,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-22 14:04:23,512 INFO L87 Difference]: Start difference. First operand 170 states and 211 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-22 14:04:24,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:24,609 INFO L93 Difference]: Finished difference Result 282 states and 362 transitions. [2021-12-22 14:04:24,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-22 14:04:24,609 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 99 [2021-12-22 14:04:24,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:24,611 INFO L225 Difference]: With dead ends: 282 [2021-12-22 14:04:24,611 INFO L226 Difference]: Without dead ends: 226 [2021-12-22 14:04:24,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-12-22 14:04:24,613 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 264 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:24,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 1095 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-22 14:04:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-12-22 14:04:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 162. [2021-12-22 14:04:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 103 states have internal predecessors, (116), 41 states have call successors, (41), 16 states have call predecessors, (41), 19 states have return successors, (42), 42 states have call predecessors, (42), 39 states have call successors, (42) [2021-12-22 14:04:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 199 transitions. [2021-12-22 14:04:24,627 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 199 transitions. Word has length 99 [2021-12-22 14:04:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:24,628 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 199 transitions. [2021-12-22 14:04:24,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-22 14:04:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 199 transitions. [2021-12-22 14:04:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-22 14:04:24,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:24,630 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:24,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:04:24,630 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:24,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1965360267, now seen corresponding path program 1 times [2021-12-22 14:04:24,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:24,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951052594] [2021-12-22 14:04:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:24,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:04:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:04:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:24,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:24,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 14:04:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:04:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 14:04:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-22 14:04:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:04:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 14:04:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-22 14:04:25,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:25,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951052594] [2021-12-22 14:04:25,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951052594] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:25,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004680730] [2021-12-22 14:04:25,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:25,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:25,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:25,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:04:25,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:04:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:25,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 2690 conjuncts, 104 conjunts are in the unsatisfiable core [2021-12-22 14:04:25,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:25,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-22 14:04:27,939 INFO L353 Elim1Store]: treesize reduction 120, result has 21.6 percent of original size [2021-12-22 14:04:27,939 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 163 [2021-12-22 14:04:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-22 14:04:28,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:04:30,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004680730] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:30,424 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-22 14:04:30,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 30] total 40 [2021-12-22 14:04:30,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001176354] [2021-12-22 14:04:30,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-22 14:04:30,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-22 14:04:30,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:30,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-22 14:04:30,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2209, Unknown=0, NotChecked=0, Total=2352 [2021-12-22 14:04:30,426 INFO L87 Difference]: Start difference. First operand 162 states and 199 transitions. Second operand has 40 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 29 states have internal predecessors, (107), 14 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2021-12-22 14:04:30,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:30,857 INFO L93 Difference]: Finished difference Result 174 states and 209 transitions. [2021-12-22 14:04:30,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 14:04:30,859 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 29 states have internal predecessors, (107), 14 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) Word has length 103 [2021-12-22 14:04:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:30,860 INFO L225 Difference]: With dead ends: 174 [2021-12-22 14:04:30,860 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 14:04:30,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=200, Invalid=2880, Unknown=0, NotChecked=0, Total=3080 [2021-12-22 14:04:30,861 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:30,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 190 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 294 Invalid, 0 Unknown, 56 Unchecked, 0.2s Time] [2021-12-22 14:04:30,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 14:04:30,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 14:04:30,862 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) [2021-12-22 14:04:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 14:04:30,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2021-12-22 14:04:30,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:30,863 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 14:04:30,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 29 states have internal predecessors, (107), 14 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2021-12-22 14:04:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 14:04:30,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 14:04:30,865 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 14:04:30,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:31,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:31,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 14:04:31,172 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (or (not (= 195 |~#s_can_fail_allocator_static~0.base|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-22 14:04:31,172 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-12-22 14:04:31,172 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-12-22 14:04:31,172 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-12-22 14:04:31,172 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (or (not (= 195 |~#s_can_fail_allocator_static~0.base|)) (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-22 14:04:31,173 INFO L861 garLoopResultBuilder]: At program point aws_mem_acquireENTRY(lines 6928 6938) the Hoare annotation is: true [2021-12-22 14:04:31,173 INFO L858 garLoopResultBuilder]: For program point L6934(lines 6934 6936) no Hoare annotation was computed. [2021-12-22 14:04:31,173 INFO L858 garLoopResultBuilder]: For program point L6935-1(line 6935) no Hoare annotation was computed. [2021-12-22 14:04:31,173 INFO L861 garLoopResultBuilder]: At program point L6935(line 6935) the Hoare annotation is: true [2021-12-22 14:04:31,173 INFO L858 garLoopResultBuilder]: For program point aws_mem_acquireEXIT(lines 6928 6938) no Hoare annotation was computed. [2021-12-22 14:04:31,173 INFO L861 garLoopResultBuilder]: At program point L6931-1(line 6931) the Hoare annotation is: true [2021-12-22 14:04:31,173 INFO L861 garLoopResultBuilder]: At program point L6931(line 6931) the Hoare annotation is: true [2021-12-22 14:04:31,173 INFO L858 garLoopResultBuilder]: For program point L6934-2(lines 6934 6936) no Hoare annotation was computed. [2021-12-22 14:04:31,173 INFO L858 garLoopResultBuilder]: For program point L6933(line 6933) no Hoare annotation was computed. [2021-12-22 14:04:31,174 INFO L858 garLoopResultBuilder]: For program point L6929-2(line 6929) no Hoare annotation was computed. [2021-12-22 14:04:31,174 INFO L861 garLoopResultBuilder]: At program point L6929-1(line 6929) the Hoare annotation is: true [2021-12-22 14:04:31,174 INFO L861 garLoopResultBuilder]: At program point L6929(line 6929) the Hoare annotation is: true [2021-12-22 14:04:31,174 INFO L858 garLoopResultBuilder]: For program point aws_mem_acquireFINAL(lines 6928 6938) no Hoare annotation was computed. [2021-12-22 14:04:31,174 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-22 14:04:31,174 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-22 14:04:31,174 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-22 14:04:31,174 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2021-12-22 14:04:31,174 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L858 garLoopResultBuilder]: For program point aws_allocator_is_validFINAL(lines 6923 6926) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L858 garLoopResultBuilder]: For program point L6925-1(line 6925) no Hoare annotation was computed. [2021-12-22 14:04:31,175 INFO L861 garLoopResultBuilder]: At program point L6925(line 6925) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point aws_allocator_is_validENTRY(lines 6923 6926) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point aws_allocator_is_validEXIT(lines 6923 6926) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point __CPROVER_overflow_plusENTRY(lines 248 251) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_plusFINAL(lines 248 251) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_plusEXIT(lines 248 251) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point L8989(line 8989) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point L8990-1(line 8990) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point L8989-1(line 8989) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point L8989-2(line 8989) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point aws_string_new_from_stringENTRY(lines 8988 8991) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point L8990(line 8990) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point L8989-4(line 8989) the Hoare annotation is: true [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point L8989-5(line 8989) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_stringEXIT(lines 8988 8991) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_stringFINAL(lines 8988 8991) no Hoare annotation was computed. [2021-12-22 14:04:31,176 INFO L861 garLoopResultBuilder]: At program point can_fail_mallocENTRY(lines 6899 6903) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L6900-3(lines 6900 6902) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L6902(line 6902) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point can_fail_mallocFINAL(lines 6899 6903) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L6900-1(lines 6900 6902) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point can_fail_mallocEXIT(lines 6899 6903) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L6900(line 6900) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L6902-1(line 6902) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point aws_string_new_from_arrayENTRY(lines 8964 8986) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L8985-4(line 8985) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L8985-1(line 8985) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L8983(line 8983) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L8985-2(line 8985) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L8983-1(line 8983) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L8985-3(line 8985) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L8973(line 8973) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L8973-1(line 8973) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L8965(line 8965) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_arrayFINAL(lines 8964 8986) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L861 garLoopResultBuilder]: At program point L8965-1(line 8965) the Hoare annotation is: true [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_arrayEXIT(lines 8964 8986) no Hoare annotation was computed. [2021-12-22 14:04:31,177 INFO L858 garLoopResultBuilder]: For program point L8974(lines 8974 8978) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L861 garLoopResultBuilder]: At program point L8968(line 8968) the Hoare annotation is: true [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point L8968-1(line 8968) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point L8966(line 8966) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point L8968-2(lines 8968 8972) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L861 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-12-22 14:04:31,178 INFO L861 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: true [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memcpyFINAL(line -1) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L861 garLoopResultBuilder]: At program point #Ultimate.C_memcpyENTRY(line -1) the Hoare annotation is: true [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memcpyEXIT(line -1) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L861 garLoopResultBuilder]: At program point aws_raise_errorENTRY(lines 1988 1999) the Hoare annotation is: true [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point aws_raise_errorFINAL(lines 1988 1999) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point aws_raise_errorEXIT(lines 1988 1999) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point L7317(lines 7317 7319) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-12-22 14:04:31,178 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-12-22 14:04:31,179 INFO L861 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: true [2021-12-22 14:04:31,179 INFO L861 garLoopResultBuilder]: At program point aws_add_size_checkedENTRY(lines 2613 2621) the Hoare annotation is: true [2021-12-22 14:04:31,179 INFO L861 garLoopResultBuilder]: At program point L2542(line 2542) the Hoare annotation is: true [2021-12-22 14:04:31,179 INFO L858 garLoopResultBuilder]: For program point L2543-1(line 2543) no Hoare annotation was computed. [2021-12-22 14:04:31,179 INFO L861 garLoopResultBuilder]: At program point L2543(line 2543) the Hoare annotation is: true [2021-12-22 14:04:31,179 INFO L858 garLoopResultBuilder]: For program point L2542-1(lines 2542 2543) no Hoare annotation was computed. [2021-12-22 14:04:31,179 INFO L858 garLoopResultBuilder]: For program point aws_add_size_checkedFINAL(lines 2613 2621) no Hoare annotation was computed. [2021-12-22 14:04:31,179 INFO L858 garLoopResultBuilder]: For program point aws_add_size_checkedEXIT(lines 2613 2621) no Hoare annotation was computed. [2021-12-22 14:04:31,179 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: false [2021-12-22 14:04:31,179 INFO L858 garLoopResultBuilder]: For program point L9338(lines 9338 9344) no Hoare annotation was computed. [2021-12-22 14:04:31,179 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-12-22 14:04:31,179 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2021-12-22 14:04:31,179 INFO L858 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2021-12-22 14:04:31,179 INFO L854 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (and (let ((.cse0 (* (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 18446744073709551616))) (<= (+ 18446744073709551616 .cse0) (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1|) 18446744073710786164 .cse0) 18446744073709551616))))) (= 195 |~#s_can_fail_allocator_static~0.base|) (<= 18446744073709551616 (+ |ULTIMATE.start_ensure_string_is_allocated_~len#1| (* 18446744073709551616 (div (+ 18446744073710786164 (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_~len#1|)) 18446744073709551616)))) (= (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| (- 18446744073710786165)) 0)) [2021-12-22 14:04:31,179 INFO L854 garLoopResultBuilder]: At program point L6803(lines 6800 6804) the Hoare annotation is: false [2021-12-22 14:04:31,179 INFO L854 garLoopResultBuilder]: At program point L9338-2(lines 9338 9344) the Hoare annotation is: false [2021-12-22 14:04:31,179 INFO L854 garLoopResultBuilder]: At program point L6795(lines 6793 6798) the Hoare annotation is: false [2021-12-22 14:04:31,179 INFO L861 garLoopResultBuilder]: At program point L9347(line 9347) the Hoare annotation is: true [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L9343-2(line 9343) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L9339(line 9339) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L9339-1(line 9339) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L9343(line 9343) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L9343-1(line 9343) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L9335(line 9335) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L9335-1(line 9335) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L9340(line 9340) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L9340-1(line 9340) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L9332(line 9332) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L9332-2(line 9332) the Hoare annotation is: false [2021-12-22 14:04:31,180 INFO L858 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2021-12-22 14:04:31,180 INFO L854 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (and (= 195 |~#s_can_fail_allocator_static~0.base|) (= (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| (- 18446744073710786165)) 0)) [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L9332-3(line 9332) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L9332-4(line 9332) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2021-12-22 14:04:31,181 INFO L854 garLoopResultBuilder]: At program point L9341(line 9341) the Hoare annotation is: false [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L9341-1(line 9341) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L854 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: false [2021-12-22 14:04:31,181 INFO L854 garLoopResultBuilder]: At program point L9345(line 9345) the Hoare annotation is: false [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L9345-1(line 9345) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L854 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: false [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= 195 |~#s_can_fail_allocator_static~0.base|) (= (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| (- 18446744073710786165)) 0)) [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L9329(lines 9329 9346) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-22 14:04:31,181 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-22 14:04:31,181 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-22 14:04:31,182 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-22 14:04:31,182 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-22 14:04:31,182 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-22 14:04:31,184 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-22 14:04:31,185 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 14:04:31,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 02:04:31 BoogieIcfgContainer [2021-12-22 14:04:31,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 14:04:31,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 14:04:31,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 14:04:31,207 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 14:04:31,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:04:19" (3/4) ... [2021-12-22 14:04:31,209 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_malloc [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_acquire [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_new_from_array [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-22 14:04:31,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2021-12-22 14:04:31,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-22 14:04:31,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-22 14:04:31,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_allocator_is_valid [2021-12-22 14:04:31,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2021-12-22 14:04:31,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-22 14:04:31,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-22 14:04:31,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2021-12-22 14:04:31,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_new_from_string [2021-12-22 14:04:31,226 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 154 nodes and edges [2021-12-22 14:04:31,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2021-12-22 14:04:31,228 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-12-22 14:04:31,228 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-12-22 14:04:31,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-22 14:04:31,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-22 14:04:31,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 14:04:31,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 14:04:31,765 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 14:04:31,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 14:04:31,766 INFO L158 Benchmark]: Toolchain (without parser) took 15191.04ms. Allocated memory was 102.8MB in the beginning and 362.8MB in the end (delta: 260.0MB). Free memory was 75.5MB in the beginning and 247.0MB in the end (delta: -171.5MB). Peak memory consumption was 264.3MB. Max. memory is 16.1GB. [2021-12-22 14:04:31,766 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 14:04:31,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1736.25ms. Allocated memory was 102.8MB in the beginning and 197.1MB in the end (delta: 94.4MB). Free memory was 75.2MB in the beginning and 141.6MB in the end (delta: -66.3MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2021-12-22 14:04:31,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 161.73ms. Allocated memory is still 197.1MB. Free memory was 141.6MB in the beginning and 130.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 14:04:31,767 INFO L158 Benchmark]: Boogie Preprocessor took 90.47ms. Allocated memory is still 197.1MB. Free memory was 130.0MB in the beginning and 122.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 14:04:31,767 INFO L158 Benchmark]: RCFGBuilder took 1100.40ms. Allocated memory is still 197.1MB. Free memory was 122.7MB in the beginning and 110.6MB in the end (delta: 12.1MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2021-12-22 14:04:31,767 INFO L158 Benchmark]: TraceAbstraction took 11538.15ms. Allocated memory was 197.1MB in the beginning and 302.0MB in the end (delta: 104.9MB). Free memory was 109.9MB in the beginning and 203.6MB in the end (delta: -93.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-12-22 14:04:31,767 INFO L158 Benchmark]: Witness Printer took 558.47ms. Allocated memory was 302.0MB in the beginning and 362.8MB in the end (delta: 60.8MB). Free memory was 203.6MB in the beginning and 247.0MB in the end (delta: -43.4MB). Peak memory consumption was 194.7MB. Max. memory is 16.1GB. [2021-12-22 14:04:31,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1736.25ms. Allocated memory was 102.8MB in the beginning and 197.1MB in the end (delta: 94.4MB). Free memory was 75.2MB in the beginning and 141.6MB in the end (delta: -66.3MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 161.73ms. Allocated memory is still 197.1MB. Free memory was 141.6MB in the beginning and 130.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.47ms. Allocated memory is still 197.1MB. Free memory was 130.0MB in the beginning and 122.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1100.40ms. Allocated memory is still 197.1MB. Free memory was 122.7MB in the beginning and 110.6MB in the end (delta: 12.1MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11538.15ms. Allocated memory was 197.1MB in the beginning and 302.0MB in the end (delta: 104.9MB). Free memory was 109.9MB in the beginning and 203.6MB in the end (delta: -93.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 558.47ms. Allocated memory was 302.0MB in the beginning and 362.8MB in the end (delta: 60.8MB). Free memory was 203.6MB in the beginning and 247.0MB in the end (delta: -43.4MB). Peak memory consumption was 194.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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 17 procedures, 153 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 646 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 580 mSDsluCounter, 3579 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 56 IncrementalHoareTripleChecker+Unchecked, 2874 mSDsCounter, 412 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2655 IncrementalHoareTripleChecker+Invalid, 3123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 412 mSolverCounterUnsat, 705 mSDtfsCounter, 2655 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=3, InterpolantAutomatonStates: 58, 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, 5 MinimizatonAttempts, 166 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 191 PreInvPairs, 193 NumberOfFragments, 148 HoareAnnotationTreeSize, 191 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 62 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 554 ConstructedInterpolants, 7 QuantifiedInterpolants, 3542 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2690 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 233/254 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: 1 - InvariantResult [Line: 6793]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8985]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9347]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2541]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6800]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-22 14:04:31,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE