./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/unreach-call.prp --file /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678b828e 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 /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_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 448a89b655935d993b192d73af26c9e5a3a7ef62 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-678b828 [2020-12-07 17:12:58,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-07 17:12:58,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-07 17:12:58,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-07 17:12:58,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-07 17:12:58,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-07 17:12:58,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-07 17:12:58,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-07 17:12:58,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-07 17:12:58,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-07 17:12:58,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-07 17:12:58,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-07 17:12:58,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-07 17:12:58,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-07 17:12:58,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-07 17:12:58,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-07 17:12:58,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-07 17:12:58,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-07 17:12:58,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-07 17:12:58,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-07 17:12:58,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-07 17:12:58,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-07 17:12:58,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-07 17:12:58,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-07 17:12:58,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-07 17:12:58,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-07 17:12:58,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-07 17:12:58,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-07 17:12:58,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-07 17:12:58,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-07 17:12:58,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-07 17:12:58,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-07 17:12:58,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-07 17:12:58,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-07 17:12:58,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-07 17:12:58,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-07 17:12:58,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-07 17:12:58,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-07 17:12:58,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-07 17:12:58,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-07 17:12:58,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-07 17:12:58,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-07 17:12:58,301 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-07 17:12:58,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-07 17:12:58,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-07 17:12:58,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-07 17:12:58,311 INFO L138 SettingsManager]: * Use SBE=true [2020-12-07 17:12:58,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-07 17:12:58,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-07 17:12:58,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-07 17:12:58,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-07 17:12:58,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-07 17:12:58,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-07 17:12:58,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-07 17:12:58,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-07 17:12:58,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-07 17:12:58,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-07 17:12:58,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-07 17:12:58,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-07 17:12:58,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 17:12:58,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-07 17:12:58,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-07 17:12:58,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-07 17:12:58,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-07 17:12:58,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-07 17:12:58,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-07 17:12:58,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-07 17:12:58,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 448a89b655935d993b192d73af26c9e5a3a7ef62 [2020-12-07 17:12:58,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-07 17:12:58,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-07 17:12:58,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-07 17:12:58,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-07 17:12:58,917 INFO L275 PluginConnector]: CDTParser initialized [2020-12-07 17:12:58,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i [2020-12-07 17:12:59,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d11c8d0/81e6e852246d4ea79e499822149e4d76/FLAG777e63b6c [2020-12-07 17:13:00,344 INFO L306 CDTParser]: Found 1 translation units. [2020-12-07 17:13:00,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i [2020-12-07 17:13:00,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d11c8d0/81e6e852246d4ea79e499822149e4d76/FLAG777e63b6c [2020-12-07 17:13:00,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d11c8d0/81e6e852246d4ea79e499822149e4d76 [2020-12-07 17:13:00,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-07 17:13:00,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-07 17:13:00,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-07 17:13:00,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-07 17:13:00,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-07 17:13:00,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:00" (1/1) ... [2020-12-07 17:13:00,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f837e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:00, skipping insertion in model container [2020-12-07 17:13:00,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:00" (1/1) ... [2020-12-07 17:13:00,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-07 17:13:00,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-07 17:13:01,173 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i[4505,4518] [2020-12-07 17:13:01,187 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i[4565,4578] [2020-12-07 17:13:01,230 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 17:13:01,245 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 17:13:02,642 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,646 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,649 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,651 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,655 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,690 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,692 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,695 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:02,696 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 17:13:03,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 17:13:03,382 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 17:13:03,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 17:13:03,402 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 17:13:03,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 17:13:03,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 17:13:03,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 17:13:03,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 17:13:03,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 17:13:03,735 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 17:13:03,948 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:03,949 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 17:13:04,112 INFO L203 MainTranslator]: Completed pre-run [2020-12-07 17:13:04,134 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i[4505,4518] [2020-12-07 17:13:04,135 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i[4565,4578] [2020-12-07 17:13:04,139 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 17:13:04,141 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 17:13:04,228 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,229 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,229 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,230 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,233 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,252 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,254 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,260 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,263 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 17:13:04,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 17:13:04,313 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 17:13:04,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 17:13:04,317 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 17:13:04,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 17:13:04,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 17:13:04,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 17:13:04,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 17:13:04,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 17:13:04,351 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 17:13:04,606 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,607 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:04,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 17:13:06,274 INFO L208 MainTranslator]: Completed translation [2020-12-07 17:13:06,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06 WrapperNode [2020-12-07 17:13:06,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-07 17:13:06,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-07 17:13:06,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-07 17:13:06,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-07 17:13:06,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-07 17:13:06,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-07 17:13:06,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-07 17:13:06,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-07 17:13:06,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... [2020-12-07 17:13:06,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-07 17:13:06,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-07 17:13:06,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-07 17:13:06,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-07 17:13:06,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 17:13:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-07 17:13:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-07 17:13:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-07 17:13:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-07 17:13:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-07 17:13:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-07 17:13:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-07 17:13:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-07 17:13:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-07 17:13:07,955 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-07 17:13:07,956 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2020-12-07 17:13:07,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:07 BoogieIcfgContainer [2020-12-07 17:13:07,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-07 17:13:07,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-07 17:13:07,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-07 17:13:07,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-07 17:13:07,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:13:00" (1/3) ... [2020-12-07 17:13:07,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38daa87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:07, skipping insertion in model container [2020-12-07 17:13:07,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:06" (2/3) ... [2020-12-07 17:13:07,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38daa87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:07, skipping insertion in model container [2020-12-07 17:13:07,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:07" (3/3) ... [2020-12-07 17:13:07,973 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_ignore_case_harness.i [2020-12-07 17:13:07,995 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-07 17:13:08,003 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-07 17:13:08,019 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-07 17:13:08,055 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-07 17:13:08,056 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-07 17:13:08,056 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-07 17:13:08,056 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-07 17:13:08,056 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-07 17:13:08,056 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-07 17:13:08,057 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-07 17:13:08,057 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-07 17:13:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-12-07 17:13:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-07 17:13:08,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:08,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:08,088 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:08,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:08,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1267490943, now seen corresponding path program 1 times [2020-12-07 17:13:08,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:08,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826861037] [2020-12-07 17:13:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:08,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:08,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826861037] [2020-12-07 17:13:08,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:08,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-07 17:13:08,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998636454] [2020-12-07 17:13:08,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-07 17:13:08,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:08,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-07 17:13:08,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 17:13:08,735 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2020-12-07 17:13:08,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:08,785 INFO L93 Difference]: Finished difference Result 142 states and 190 transitions. [2020-12-07 17:13:08,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-07 17:13:08,787 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2020-12-07 17:13:08,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:08,804 INFO L225 Difference]: With dead ends: 142 [2020-12-07 17:13:08,805 INFO L226 Difference]: Without dead ends: 69 [2020-12-07 17:13:08,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 17:13:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-07 17:13:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-07 17:13:08,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-07 17:13:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2020-12-07 17:13:08,903 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 22 [2020-12-07 17:13:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:08,905 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2020-12-07 17:13:08,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-07 17:13:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2020-12-07 17:13:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-07 17:13:08,909 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:08,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:08,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-07 17:13:08,911 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:08,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:08,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1009325505, now seen corresponding path program 1 times [2020-12-07 17:13:08,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:08,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918931417] [2020-12-07 17:13:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:09,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918931417] [2020-12-07 17:13:09,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:09,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 17:13:09,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401813472] [2020-12-07 17:13:09,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 17:13:09,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:09,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 17:13:09,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:09,214 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand 4 states. [2020-12-07 17:13:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:09,269 INFO L93 Difference]: Finished difference Result 122 states and 144 transitions. [2020-12-07 17:13:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 17:13:09,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-07 17:13:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:09,273 INFO L225 Difference]: With dead ends: 122 [2020-12-07 17:13:09,273 INFO L226 Difference]: Without dead ends: 69 [2020-12-07 17:13:09,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-07 17:13:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-07 17:13:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-07 17:13:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2020-12-07 17:13:09,287 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 22 [2020-12-07 17:13:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:09,293 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2020-12-07 17:13:09,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 17:13:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2020-12-07 17:13:09,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-07 17:13:09,295 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:09,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:09,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-07 17:13:09,296 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:09,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:09,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2090456739, now seen corresponding path program 1 times [2020-12-07 17:13:09,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:09,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730262785] [2020-12-07 17:13:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:09,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730262785] [2020-12-07 17:13:09,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:09,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-07 17:13:09,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415821713] [2020-12-07 17:13:09,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-07 17:13:09,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:09,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-07 17:13:09,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:09,631 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 9 states. [2020-12-07 17:13:09,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:09,883 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2020-12-07 17:13:09,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-07 17:13:09,885 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-12-07 17:13:09,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:09,886 INFO L225 Difference]: With dead ends: 88 [2020-12-07 17:13:09,887 INFO L226 Difference]: Without dead ends: 69 [2020-12-07 17:13:09,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-12-07 17:13:09,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-07 17:13:09,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-07 17:13:09,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-07 17:13:09,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2020-12-07 17:13:09,902 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 33 [2020-12-07 17:13:09,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:09,903 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2020-12-07 17:13:09,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-07 17:13:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2020-12-07 17:13:09,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-07 17:13:09,905 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:09,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:09,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-07 17:13:09,906 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:09,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1931203523, now seen corresponding path program 1 times [2020-12-07 17:13:09,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:09,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399421961] [2020-12-07 17:13:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:10,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399421961] [2020-12-07 17:13:10,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:10,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 17:13:10,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794577] [2020-12-07 17:13:10,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 17:13:10,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:10,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 17:13:10,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:10,098 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand 4 states. [2020-12-07 17:13:10,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:10,139 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2020-12-07 17:13:10,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 17:13:10,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-07 17:13:10,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:10,141 INFO L225 Difference]: With dead ends: 110 [2020-12-07 17:13:10,143 INFO L226 Difference]: Without dead ends: 69 [2020-12-07 17:13:10,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:10,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-07 17:13:10,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-07 17:13:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-07 17:13:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-12-07 17:13:10,167 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 34 [2020-12-07 17:13:10,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:10,168 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-12-07 17:13:10,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 17:13:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2020-12-07 17:13:10,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-07 17:13:10,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:10,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:10,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-07 17:13:10,173 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:10,174 INFO L82 PathProgramCache]: Analyzing trace with hash 268760160, now seen corresponding path program 1 times [2020-12-07 17:13:10,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:10,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157000938] [2020-12-07 17:13:10,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:10,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157000938] [2020-12-07 17:13:10,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:10,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-07 17:13:10,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119328047] [2020-12-07 17:13:10,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-07 17:13:10,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:10,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-07 17:13:10,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:10,494 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand 9 states. [2020-12-07 17:13:10,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:10,762 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2020-12-07 17:13:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-07 17:13:10,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-12-07 17:13:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:10,767 INFO L225 Difference]: With dead ends: 103 [2020-12-07 17:13:10,769 INFO L226 Difference]: Without dead ends: 69 [2020-12-07 17:13:10,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-12-07 17:13:10,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-07 17:13:10,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-07 17:13:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-07 17:13:10,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2020-12-07 17:13:10,805 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 43 [2020-12-07 17:13:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:10,806 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2020-12-07 17:13:10,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-07 17:13:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-12-07 17:13:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-07 17:13:10,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:10,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:10,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-07 17:13:10,814 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:10,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:10,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1742888769, now seen corresponding path program 1 times [2020-12-07 17:13:10,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:10,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993810119] [2020-12-07 17:13:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:11,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993810119] [2020-12-07 17:13:11,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:11,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-07 17:13:11,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197403550] [2020-12-07 17:13:11,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-07 17:13:11,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:11,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-07 17:13:11,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-12-07 17:13:11,173 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand 12 states. [2020-12-07 17:13:11,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:11,623 INFO L93 Difference]: Finished difference Result 108 states and 122 transitions. [2020-12-07 17:13:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-07 17:13:11,624 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2020-12-07 17:13:11,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:11,628 INFO L225 Difference]: With dead ends: 108 [2020-12-07 17:13:11,628 INFO L226 Difference]: Without dead ends: 72 [2020-12-07 17:13:11,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-12-07 17:13:11,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-07 17:13:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-12-07 17:13:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-07 17:13:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2020-12-07 17:13:11,654 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 48 [2020-12-07 17:13:11,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:11,654 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2020-12-07 17:13:11,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-07 17:13:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2020-12-07 17:13:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-07 17:13:11,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:11,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:11,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-07 17:13:11,656 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:11,657 INFO L82 PathProgramCache]: Analyzing trace with hash -156387909, now seen corresponding path program 1 times [2020-12-07 17:13:11,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:11,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226744772] [2020-12-07 17:13:11,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:12,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226744772] [2020-12-07 17:13:12,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:12,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-07 17:13:12,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466412176] [2020-12-07 17:13:12,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-07 17:13:12,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:12,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-07 17:13:12,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-12-07 17:13:12,051 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand 14 states. [2020-12-07 17:13:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:12,495 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-12-07 17:13:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-07 17:13:12,497 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2020-12-07 17:13:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:12,498 INFO L225 Difference]: With dead ends: 90 [2020-12-07 17:13:12,498 INFO L226 Difference]: Without dead ends: 71 [2020-12-07 17:13:12,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2020-12-07 17:13:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-07 17:13:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-12-07 17:13:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-07 17:13:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2020-12-07 17:13:12,509 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 48 [2020-12-07 17:13:12,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:12,510 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2020-12-07 17:13:12,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-07 17:13:12,510 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2020-12-07 17:13:12,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-07 17:13:12,511 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:12,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 17:13:12,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-07 17:13:12,512 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:12,513 INFO L82 PathProgramCache]: Analyzing trace with hash -168490957, now seen corresponding path program 1 times [2020-12-07 17:13:12,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:12,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138958803] [2020-12-07 17:13:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 17:13:13,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138958803] [2020-12-07 17:13:13,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:13,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-07 17:13:13,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016521928] [2020-12-07 17:13:13,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 17:13:13,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:13,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 17:13:13,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-07 17:13:13,106 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 6 states. [2020-12-07 17:13:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:13,207 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2020-12-07 17:13:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-07 17:13:13,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-12-07 17:13:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:13,208 INFO L225 Difference]: With dead ends: 71 [2020-12-07 17:13:13,209 INFO L226 Difference]: Without dead ends: 0 [2020-12-07 17:13:13,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-07 17:13:13,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-07 17:13:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-07 17:13:13,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-07 17:13:13,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-12-07 17:13:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:13,211 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-07 17:13:13,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 17:13:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-07 17:13:13,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-07 17:13:13,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-07 17:13:13,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-07 17:13:13,427 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,427 INFO L262 CegarLoopResult]: For program point L7617(lines 7617 7625) no Hoare annotation was computed. [2020-12-07 17:13:13,428 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-07 17:13:13,428 INFO L258 CegarLoopResult]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2020-12-07 17:13:13,428 INFO L265 CegarLoopResult]: At program point L8924(line 8924) the Hoare annotation is: true [2020-12-07 17:13:13,432 INFO L258 CegarLoopResult]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)) [2020-12-07 17:13:13,433 INFO L262 CegarLoopResult]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:13,433 INFO L262 CegarLoopResult]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:13,433 INFO L262 CegarLoopResult]: For program point L8067(lines 8067 8071) no Hoare annotation was computed. [2020-12-07 17:13:13,433 INFO L262 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:13,433 INFO L262 CegarLoopResult]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:13,434 INFO L262 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:13,434 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-07 17:13:13,434 INFO L262 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,434 INFO L262 CegarLoopResult]: For program point L223-1(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,434 INFO L262 CegarLoopResult]: For program point L223-3(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,434 INFO L262 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,434 INFO L262 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,435 INFO L262 CegarLoopResult]: For program point L223-7(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,435 INFO L262 CegarLoopResult]: For program point L8911(lines 8911 8923) no Hoare annotation was computed. [2020-12-07 17:13:13,435 INFO L262 CegarLoopResult]: For program point L7607(line 7607) no Hoare annotation was computed. [2020-12-07 17:13:13,435 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,435 INFO L262 CegarLoopResult]: For program point L7607-2(line 7607) no Hoare annotation was computed. [2020-12-07 17:13:13,436 INFO L262 CegarLoopResult]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2020-12-07 17:13:13,436 INFO L262 CegarLoopResult]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2020-12-07 17:13:13,436 INFO L262 CegarLoopResult]: For program point L7608(lines 7608 7616) no Hoare annotation was computed. [2020-12-07 17:13:13,436 INFO L258 CegarLoopResult]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2020-12-07 17:13:13,436 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-07 17:13:13,437 INFO L262 CegarLoopResult]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,437 INFO L262 CegarLoopResult]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,437 INFO L262 CegarLoopResult]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,437 INFO L262 CegarLoopResult]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,437 INFO L262 CegarLoopResult]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,437 INFO L262 CegarLoopResult]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,438 INFO L258 CegarLoopResult]: At program point L7626(lines 7605 7627) the Hoare annotation is: (let ((.cse0 (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str.base)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)))) [2020-12-07 17:13:13,438 INFO L262 CegarLoopResult]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,438 INFO L262 CegarLoopResult]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:13,439 INFO L258 CegarLoopResult]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2020-12-07 17:13:13,440 INFO L262 CegarLoopResult]: For program point L8915(lines 8915 8916) no Hoare annotation was computed. [2020-12-07 17:13:13,440 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,440 INFO L262 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,440 INFO L262 CegarLoopResult]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,440 INFO L262 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,440 INFO L262 CegarLoopResult]: For program point L8915-2(lines 8915 8916) no Hoare annotation was computed. [2020-12-07 17:13:13,441 INFO L262 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,441 INFO L262 CegarLoopResult]: For program point L211-10(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,441 INFO L262 CegarLoopResult]: For program point L211-12(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,441 INFO L265 CegarLoopResult]: At program point L261(line 261) the Hoare annotation is: true [2020-12-07 17:13:13,441 INFO L262 CegarLoopResult]: For program point L211-14(line 211) no Hoare annotation was computed. [2020-12-07 17:13:13,442 INFO L258 CegarLoopResult]: At program point L261-1(line 261) the Hoare annotation is: false [2020-12-07 17:13:13,442 INFO L258 CegarLoopResult]: At program point L261-2(line 261) the Hoare annotation is: (and (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)) [2020-12-07 17:13:13,442 INFO L262 CegarLoopResult]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,442 INFO L262 CegarLoopResult]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,442 INFO L262 CegarLoopResult]: For program point L6257(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,444 INFO L258 CegarLoopResult]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (let ((.cse0 (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str.base)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)))) [2020-12-07 17:13:13,445 INFO L258 CegarLoopResult]: At program point L8074(lines 8042 8075) the Hoare annotation is: (let ((.cse0 (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str.base)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)))) [2020-12-07 17:13:13,446 INFO L262 CegarLoopResult]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,446 INFO L262 CegarLoopResult]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,446 INFO L262 CegarLoopResult]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,446 INFO L262 CegarLoopResult]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,446 INFO L262 CegarLoopResult]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:13,447 INFO L258 CegarLoopResult]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: false [2020-12-07 17:13:13,447 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-07 17:13:13,447 INFO L262 CegarLoopResult]: For program point L8059-4(lines 8059 8072) no Hoare annotation was computed. [2020-12-07 17:13:13,447 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:13,448 INFO L258 CegarLoopResult]: At program point L8059-3(lines 8059 8072) the Hoare annotation is: (let ((.cse0 (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str.base)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)))) [2020-12-07 17:13:13,448 INFO L262 CegarLoopResult]: For program point L8059-2(lines 8059 8072) no Hoare annotation was computed. [2020-12-07 17:13:13,448 INFO L258 CegarLoopResult]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2020-12-07 17:13:13,448 INFO L262 CegarLoopResult]: For program point L8918(lines 8918 8922) no Hoare annotation was computed. [2020-12-07 17:13:13,449 INFO L258 CegarLoopResult]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)) [2020-12-07 17:13:13,449 INFO L258 CegarLoopResult]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2020-12-07 17:13:13,449 INFO L262 CegarLoopResult]: For program point L8061(lines 8061 8065) no Hoare annotation was computed. [2020-12-07 17:13:13,449 INFO L258 CegarLoopResult]: At program point L266(line 266) the Hoare annotation is: (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 16) [2020-12-07 17:13:13,450 INFO L258 CegarLoopResult]: At program point L266-1(line 266) the Hoare annotation is: (and (= 0 ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.base) (= ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3.offset 0)) [2020-12-07 17:13:13,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:13:13 BoogieIcfgContainer [2020-12-07 17:13:13,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-07 17:13:13,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-07 17:13:13,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-07 17:13:13,513 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-07 17:13:13,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:07" (3/4) ... [2020-12-07 17:13:13,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-07 17:13:13,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2020-12-07 17:13:13,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-07 17:13:13,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-07 17:13:13,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-07 17:13:13,623 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) [2020-12-07 17:13:13,627 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) [2020-12-07 17:13:13,628 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) [2020-12-07 17:13:13,628 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) [2020-12-07 17:13:14,022 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-07 17:13:14,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-07 17:13:14,025 INFO L168 Benchmark]: Toolchain (without parser) took 13413.82 ms. Allocated memory was 50.3 MB in the beginning and 245.4 MB in the end (delta: 195.0 MB). Free memory was 28.6 MB in the beginning and 157.9 MB in the end (delta: -129.3 MB). Peak memory consumption was 138.4 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:14,026 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 39.8 MB. Free memory was 20.2 MB in the beginning and 20.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-07 17:13:14,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5660.27 ms. Allocated memory was 50.3 MB in the beginning and 121.6 MB in the end (delta: 71.3 MB). Free memory was 28.4 MB in the beginning and 48.5 MB in the end (delta: -20.1 MB). Peak memory consumption was 88.0 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:14,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 265.33 ms. Allocated memory is still 121.6 MB. Free memory was 48.5 MB in the beginning and 39.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:14,028 INFO L168 Benchmark]: Boogie Preprocessor took 151.09 ms. Allocated memory is still 121.6 MB. Free memory was 39.0 MB in the beginning and 33.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:14,029 INFO L168 Benchmark]: RCFGBuilder took 1263.99 ms. Allocated memory is still 121.6 MB. Free memory was 33.8 MB in the beginning and 25.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:14,029 INFO L168 Benchmark]: TraceAbstraction took 5549.57 ms. Allocated memory was 121.6 MB in the beginning and 192.9 MB in the end (delta: 71.3 MB). Free memory was 25.7 MB in the beginning and 75.1 MB in the end (delta: -49.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:14,030 INFO L168 Benchmark]: Witness Printer took 509.96 ms. Allocated memory was 192.9 MB in the beginning and 245.4 MB in the end (delta: 52.4 MB). Free memory was 75.1 MB in the beginning and 157.9 MB in the end (delta: -82.8 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:14,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 39.8 MB. Free memory was 20.2 MB in the beginning and 20.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5660.27 ms. Allocated memory was 50.3 MB in the beginning and 121.6 MB in the end (delta: 71.3 MB). Free memory was 28.4 MB in the beginning and 48.5 MB in the end (delta: -20.1 MB). Peak memory consumption was 88.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 265.33 ms. Allocated memory is still 121.6 MB. Free memory was 48.5 MB in the beginning and 39.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 151.09 ms. Allocated memory is still 121.6 MB. Free memory was 39.0 MB in the beginning and 33.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1263.99 ms. Allocated memory is still 121.6 MB. Free memory was 33.8 MB in the beginning and 25.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5549.57 ms. Allocated memory was 121.6 MB in the beginning and 192.9 MB in the end (delta: 71.3 MB). Free memory was 25.7 MB in the beginning and 75.1 MB in the end (delta: -49.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * Witness Printer took 509.96 ms. Allocated memory was 192.9 MB in the beginning and 245.4 MB in the end (delta: 52.4 MB). Free memory was 75.1 MB in the beginning and 157.9 MB in the end (delta: -82.8 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: 0 == str && str == 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) - InvariantResult [Line: 7605]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8042]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 == str && str == 0 - InvariantResult [Line: 8059]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(0 == str)) && !(0 == str)) && c_str == 0) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (0 == str && str == 0) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: max_size == 16 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 == str && str == 0 - InvariantResult [Line: 8924]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 == str && str == 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 496 SDtfs, 1567 SDslu, 1139 SDs, 0 SdLazy, 306 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 32 NumberOfFragments, 196 HoareAnnotationTreeSize, 18 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 297 ConstructedInterpolants, 0 QuantifiedInterpolants, 33218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...