./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_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_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 27380948315b42666094574aa2eff6b44da17707 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:12:54,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-07 17:12:54,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-07 17:12:54,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-07 17:12:54,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-07 17:12:54,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-07 17:12:54,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-07 17:12:54,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-07 17:12:54,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-07 17:12:54,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-07 17:12:54,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-07 17:12:54,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-07 17:12:54,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-07 17:12:54,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-07 17:12:54,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-07 17:12:54,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-07 17:12:54,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-07 17:12:54,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-07 17:12:54,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-07 17:12:54,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-07 17:12:54,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-07 17:12:54,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-07 17:12:54,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-07 17:12:54,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-07 17:12:54,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-07 17:12:54,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-07 17:12:54,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-07 17:12:54,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-07 17:12:54,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-07 17:12:54,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-07 17:12:54,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-07 17:12:54,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-07 17:12:54,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-07 17:12:54,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-07 17:12:54,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-07 17:12:54,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-07 17:12:54,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-07 17:12:54,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-07 17:12:54,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-07 17:12:54,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-07 17:12:54,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-07 17:12:54,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-07 17:12:54,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-07 17:12:54,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-07 17:12:54,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-07 17:12:54,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-07 17:12:54,943 INFO L138 SettingsManager]: * Use SBE=true [2020-12-07 17:12:54,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-07 17:12:54,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-07 17:12:54,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-07 17:12:54,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-07 17:12:54,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-07 17:12:54,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-07 17:12:54,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-07 17:12:54,945 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-07 17:12:54,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-07 17:12:54,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-07 17:12:54,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-07 17:12:54,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-07 17:12:54,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 17:12:54,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-07 17:12:54,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-07 17:12:54,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-07 17:12:54,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-07 17:12:54,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-07 17:12:54,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-07 17:12:54,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-07 17:12:54,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27380948315b42666094574aa2eff6b44da17707 [2020-12-07 17:12:55,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-07 17:12:55,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-07 17:12:55,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-07 17:12:55,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-07 17:12:55,501 INFO L275 PluginConnector]: CDTParser initialized [2020-12-07 17:12:55,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_harness.i [2020-12-07 17:12:55,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c6b61a1/e2634191fc36440ca1a20e93d311a0ad/FLAGdfc030fdc [2020-12-07 17:12:56,961 INFO L306 CDTParser]: Found 1 translation units. [2020-12-07 17:12:56,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_c_str_harness.i [2020-12-07 17:12:57,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c6b61a1/e2634191fc36440ca1a20e93d311a0ad/FLAGdfc030fdc [2020-12-07 17:12:57,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c6b61a1/e2634191fc36440ca1a20e93d311a0ad [2020-12-07 17:12:57,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-07 17:12:57,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-07 17:12:57,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-07 17:12:57,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-07 17:12:57,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-07 17:12:57,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:12:57" (1/1) ... [2020-12-07 17:12:57,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed50756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:12:57, skipping insertion in model container [2020-12-07 17:12:57,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:12:57" (1/1) ... [2020-12-07 17:12:57,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-07 17:12:57,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-07 17:12:58,020 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_harness.i[4493,4506] [2020-12-07 17:12:58,048 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_harness.i[4553,4566] [2020-12-07 17:12:58,088 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 17:12:58,101 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 17:12:59,517 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,519 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,520 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,521 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,523 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,546 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,547 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,551 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:12:59,552 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:00,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 17:13:00,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 17:13:00,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 17:13:00,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 17:13:00,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 17:13:00,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 17:13:00,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 17:13:00,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 17:13:00,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 17:13:00,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 17:13:00,705 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 17:13:00,937 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:00,938 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 17:13:01,093 INFO L203 MainTranslator]: Completed pre-run [2020-12-07 17:13:01,116 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_harness.i[4493,4506] [2020-12-07 17:13:01,117 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_harness.i[4553,4566] [2020-12-07 17:13:01,120 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 17:13:01,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 17:13:01,189 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,191 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,192 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,193 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,196 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,222 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,225 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,228 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,233 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 17:13:01,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 17:13:01,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 17:13:01,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 17:13:01,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 17:13:01,349 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 17:13:01,350 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 17:13:01,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 17:13:01,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 17:13:01,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 17:13:01,406 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 17:13:01,603 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,604 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 17:13:01,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 17:13:03,251 INFO L208 MainTranslator]: Completed translation [2020-12-07 17:13:03,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03 WrapperNode [2020-12-07 17:13:03,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-07 17:13:03,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-07 17:13:03,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-07 17:13:03,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-07 17:13:03,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-07 17:13:03,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-07 17:13:03,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-07 17:13:03,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-07 17:13:03,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (1/1) ... [2020-12-07 17:13:03,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-07 17:13:03,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-07 17:13:03,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-07 17:13:03,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-07 17:13:03,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (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 17:13:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-07 17:13:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-07 17:13:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-07 17:13:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-07 17:13:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-07 17:13:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-07 17:13:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-07 17:13:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-07 17:13:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-07 17:13:04,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-07 17:13:04,799 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2020-12-07 17:13:04,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:04 BoogieIcfgContainer [2020-12-07 17:13:04,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-07 17:13:04,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-07 17:13:04,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-07 17:13:04,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-07 17:13:04,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:12:57" (1/3) ... [2020-12-07 17:13:04,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66de2b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:04, skipping insertion in model container [2020-12-07 17:13:04,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:03" (2/3) ... [2020-12-07 17:13:04,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66de2b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:04, skipping insertion in model container [2020-12-07 17:13:04,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:04" (3/3) ... [2020-12-07 17:13:04,815 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2020-12-07 17:13:04,835 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-07 17:13:04,842 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-07 17:13:04,860 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-07 17:13:04,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-07 17:13:04,897 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-07 17:13:04,897 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-07 17:13:04,897 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-07 17:13:04,897 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-07 17:13:04,898 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-07 17:13:04,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-07 17:13:04,898 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-07 17:13:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-12-07 17:13:04,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-07 17:13:04,929 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:04,930 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 17:13:04,931 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:04,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:04,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1267490943, now seen corresponding path program 1 times [2020-12-07 17:13:04,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:04,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893973124] [2020-12-07 17:13:04,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:05,508 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 17:13:05,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893973124] [2020-12-07 17:13:05,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:05,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-07 17:13:05,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121223824] [2020-12-07 17:13:05,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-07 17:13:05,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:05,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-07 17:13:05,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 17:13:05,537 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2020-12-07 17:13:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:05,567 INFO L93 Difference]: Finished difference Result 166 states and 222 transitions. [2020-12-07 17:13:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-07 17:13:05,569 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2020-12-07 17:13:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:05,580 INFO L225 Difference]: With dead ends: 166 [2020-12-07 17:13:05,580 INFO L226 Difference]: Without dead ends: 80 [2020-12-07 17:13:05,584 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 17:13:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-07 17:13:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-07 17:13:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-07 17:13:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2020-12-07 17:13:05,634 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 22 [2020-12-07 17:13:05,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:05,635 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2020-12-07 17:13:05,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-07 17:13:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2020-12-07 17:13:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-07 17:13:05,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:05,637 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 17:13:05,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-07 17:13:05,638 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:05,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1009325505, now seen corresponding path program 1 times [2020-12-07 17:13:05,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:05,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056219157] [2020-12-07 17:13:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:05,894 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 17:13:05,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056219157] [2020-12-07 17:13:05,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:05,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 17:13:05,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907590520] [2020-12-07 17:13:05,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 17:13:05,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:05,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 17:13:05,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:05,910 INFO L87 Difference]: Start difference. First operand 80 states and 92 transitions. Second operand 4 states. [2020-12-07 17:13:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:05,986 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2020-12-07 17:13:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 17:13:05,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-07 17:13:05,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:05,989 INFO L225 Difference]: With dead ends: 144 [2020-12-07 17:13:05,989 INFO L226 Difference]: Without dead ends: 80 [2020-12-07 17:13:05,991 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 17:13:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-07 17:13:05,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-07 17:13:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-07 17:13:06,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2020-12-07 17:13:06,002 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 22 [2020-12-07 17:13:06,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:06,002 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2020-12-07 17:13:06,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 17:13:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2020-12-07 17:13:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-07 17:13:06,005 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:06,006 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 17:13:06,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-07 17:13:06,008 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:06,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:06,009 INFO L82 PathProgramCache]: Analyzing trace with hash 2090456739, now seen corresponding path program 1 times [2020-12-07 17:13:06,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:06,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126139664] [2020-12-07 17:13:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:06,208 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 17:13:06,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126139664] [2020-12-07 17:13:06,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:06,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-07 17:13:06,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818965613] [2020-12-07 17:13:06,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-07 17:13:06,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:06,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-07 17:13:06,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:06,212 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 9 states. [2020-12-07 17:13:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:06,450 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2020-12-07 17:13:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-07 17:13:06,451 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-12-07 17:13:06,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:06,452 INFO L225 Difference]: With dead ends: 110 [2020-12-07 17:13:06,453 INFO L226 Difference]: Without dead ends: 80 [2020-12-07 17:13:06,454 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 17:13:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-07 17:13:06,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-07 17:13:06,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-07 17:13:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2020-12-07 17:13:06,465 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 33 [2020-12-07 17:13:06,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:06,466 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2020-12-07 17:13:06,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-07 17:13:06,466 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2020-12-07 17:13:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-07 17:13:06,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:06,468 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 17:13:06,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-07 17:13:06,469 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:06,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:06,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1931203523, now seen corresponding path program 1 times [2020-12-07 17:13:06,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:06,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331373064] [2020-12-07 17:13:06,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:06,618 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 17:13:06,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331373064] [2020-12-07 17:13:06,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:06,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 17:13:06,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120632456] [2020-12-07 17:13:06,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 17:13:06,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:06,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 17:13:06,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 17:13:06,622 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 4 states. [2020-12-07 17:13:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:06,653 INFO L93 Difference]: Finished difference Result 132 states and 150 transitions. [2020-12-07 17:13:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 17:13:06,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-07 17:13:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:06,655 INFO L225 Difference]: With dead ends: 132 [2020-12-07 17:13:06,656 INFO L226 Difference]: Without dead ends: 80 [2020-12-07 17:13:06,657 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 17:13:06,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-07 17:13:06,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-07 17:13:06,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-07 17:13:06,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2020-12-07 17:13:06,667 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 34 [2020-12-07 17:13:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:06,667 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2020-12-07 17:13:06,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 17:13:06,668 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2020-12-07 17:13:06,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-07 17:13:06,670 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:06,670 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 17:13:06,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-07 17:13:06,671 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:06,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:06,671 INFO L82 PathProgramCache]: Analyzing trace with hash 268760160, now seen corresponding path program 1 times [2020-12-07 17:13:06,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:06,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423130501] [2020-12-07 17:13:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:06,854 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 17:13:06,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423130501] [2020-12-07 17:13:06,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:06,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-07 17:13:06,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986790820] [2020-12-07 17:13:06,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-07 17:13:06,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:06,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-07 17:13:06,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:06,870 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand 9 states. [2020-12-07 17:13:07,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:07,053 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2020-12-07 17:13:07,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-07 17:13:07,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-12-07 17:13:07,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:07,055 INFO L225 Difference]: With dead ends: 125 [2020-12-07 17:13:07,056 INFO L226 Difference]: Without dead ends: 80 [2020-12-07 17:13:07,057 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 17:13:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-07 17:13:07,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-07 17:13:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-07 17:13:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-12-07 17:13:07,066 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 43 [2020-12-07 17:13:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:07,066 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-12-07 17:13:07,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-07 17:13:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-12-07 17:13:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-07 17:13:07,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:07,069 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 17:13:07,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-07 17:13:07,069 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:07,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:07,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1742888769, now seen corresponding path program 1 times [2020-12-07 17:13:07,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:07,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135545062] [2020-12-07 17:13:07,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:07,377 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 17:13:07,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135545062] [2020-12-07 17:13:07,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:07,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-07 17:13:07,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720968039] [2020-12-07 17:13:07,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-07 17:13:07,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:07,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-07 17:13:07,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-12-07 17:13:07,382 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 12 states. [2020-12-07 17:13:07,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:07,765 INFO L93 Difference]: Finished difference Result 130 states and 144 transitions. [2020-12-07 17:13:07,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-07 17:13:07,766 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2020-12-07 17:13:07,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:07,767 INFO L225 Difference]: With dead ends: 130 [2020-12-07 17:13:07,768 INFO L226 Difference]: Without dead ends: 83 [2020-12-07 17:13:07,769 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 17:13:07,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-07 17:13:07,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-12-07 17:13:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-07 17:13:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-12-07 17:13:07,780 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 48 [2020-12-07 17:13:07,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:07,780 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-12-07 17:13:07,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-07 17:13:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-12-07 17:13:07,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-07 17:13:07,782 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:07,782 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 17:13:07,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-07 17:13:07,783 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash -156387909, now seen corresponding path program 1 times [2020-12-07 17:13:07,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:07,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231497140] [2020-12-07 17:13:07,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:08,141 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 17:13:08,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231497140] [2020-12-07 17:13:08,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:08,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-07 17:13:08,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993128096] [2020-12-07 17:13:08,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-07 17:13:08,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:08,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-07 17:13:08,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-12-07 17:13:08,157 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 14 states. [2020-12-07 17:13:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:08,638 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2020-12-07 17:13:08,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-07 17:13:08,638 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2020-12-07 17:13:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:08,642 INFO L225 Difference]: With dead ends: 112 [2020-12-07 17:13:08,643 INFO L226 Difference]: Without dead ends: 82 [2020-12-07 17:13:08,644 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 17:13:08,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-07 17:13:08,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-12-07 17:13:08,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-07 17:13:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2020-12-07 17:13:08,676 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 48 [2020-12-07 17:13:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:08,679 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2020-12-07 17:13:08,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-07 17:13:08,679 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2020-12-07 17:13:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-07 17:13:08,681 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 17:13:08,682 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 17:13:08,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-07 17:13:08,683 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 17:13:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 17:13:08,684 INFO L82 PathProgramCache]: Analyzing trace with hash -168490957, now seen corresponding path program 1 times [2020-12-07 17:13:08,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 17:13:08,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494261732] [2020-12-07 17:13:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 17:13:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 17:13:09,294 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 17:13:09,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494261732] [2020-12-07 17:13:09,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 17:13:09,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-07 17:13:09,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340207783] [2020-12-07 17:13:09,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 17:13:09,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 17:13:09,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 17:13:09,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-07 17:13:09,299 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 6 states. [2020-12-07 17:13:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 17:13:09,381 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2020-12-07 17:13:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-07 17:13:09,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-12-07 17:13:09,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 17:13:09,382 INFO L225 Difference]: With dead ends: 82 [2020-12-07 17:13:09,383 INFO L226 Difference]: Without dead ends: 0 [2020-12-07 17:13:09,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-07 17:13:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-07 17:13:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-07 17:13:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-07 17:13:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-07 17:13:09,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-12-07 17:13:09,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 17:13:09,388 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-07 17:13:09,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 17:13:09,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-07 17:13:09,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-07 17:13:09,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-07 17:13:09,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-07 17:13:09,577 INFO L262 CegarLoopResult]: For program point L8095-4(lines 8095 8108) no Hoare annotation was computed. [2020-12-07 17:13:09,577 INFO L258 CegarLoopResult]: At program point L8095-3(lines 8095 8108) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 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_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2020-12-07 17:13:09,578 INFO L262 CegarLoopResult]: For program point L8095-2(lines 8095 8108) no Hoare annotation was computed. [2020-12-07 17:13:09,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,580 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-07 17:13:09,580 INFO L258 CegarLoopResult]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2020-12-07 17:13:09,580 INFO L262 CegarLoopResult]: For program point L8097(lines 8097 8101) no Hoare annotation was computed. [2020-12-07 17:13:09,580 INFO L258 CegarLoopResult]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2020-12-07 17:13:09,580 INFO L265 CegarLoopResult]: At program point L8925(line 8925) the Hoare annotation is: true [2020-12-07 17:13:09,580 INFO L262 CegarLoopResult]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:09,581 INFO L262 CegarLoopResult]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2020-12-07 17:13:09,581 INFO L262 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:09,581 INFO L262 CegarLoopResult]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:09,581 INFO L262 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:09,581 INFO L262 CegarLoopResult]: For program point L222-3(lines 7102 7112) no Hoare annotation was computed. [2020-12-07 17:13:09,582 INFO L262 CegarLoopResult]: For program point L222-4(lines 222 224) no Hoare annotation was computed. [2020-12-07 17:13:09,582 INFO L262 CegarLoopResult]: For program point L7589(lines 7589 7597) no Hoare annotation was computed. [2020-12-07 17:13:09,582 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-07 17:13:09,582 INFO L262 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,583 INFO L262 CegarLoopResult]: For program point L223-1(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,583 INFO L262 CegarLoopResult]: For program point L223-3(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,583 INFO L262 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,583 INFO L262 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,583 INFO L262 CegarLoopResult]: For program point L223-7(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,583 INFO L262 CegarLoopResult]: For program point L223-9(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,584 INFO L262 CegarLoopResult]: For program point L223-10(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,584 INFO L262 CegarLoopResult]: For program point L223-12(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,584 INFO L262 CegarLoopResult]: For program point L223-13(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,584 INFO L262 CegarLoopResult]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2020-12-07 17:13:09,585 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,585 INFO L262 CegarLoopResult]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2020-12-07 17:13:09,585 INFO L262 CegarLoopResult]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2020-12-07 17:13:09,585 INFO L262 CegarLoopResult]: For program point L8103(lines 8103 8107) no Hoare annotation was computed. [2020-12-07 17:13:09,585 INFO L258 CegarLoopResult]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2020-12-07 17:13:09,585 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,585 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-07 17:13:09,586 INFO L262 CegarLoopResult]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,586 INFO L262 CegarLoopResult]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,586 INFO L262 CegarLoopResult]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,586 INFO L262 CegarLoopResult]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,586 INFO L262 CegarLoopResult]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,586 INFO L262 CegarLoopResult]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,586 INFO L262 CegarLoopResult]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,587 INFO L262 CegarLoopResult]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,587 INFO L262 CegarLoopResult]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2020-12-07 17:13:09,587 INFO L258 CegarLoopResult]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2020-12-07 17:13:09,587 INFO L262 CegarLoopResult]: For program point L8915(lines 8915 8916) no Hoare annotation was computed. [2020-12-07 17:13:09,587 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,587 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,587 INFO L262 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,588 INFO L262 CegarLoopResult]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,588 INFO L262 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,588 INFO L262 CegarLoopResult]: For program point L8915-2(lines 8915 8916) no Hoare annotation was computed. [2020-12-07 17:13:09,588 INFO L262 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,588 INFO L262 CegarLoopResult]: For program point L211-10(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,588 INFO L262 CegarLoopResult]: For program point L211-12(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,588 INFO L265 CegarLoopResult]: At program point L261(line 261) the Hoare annotation is: true [2020-12-07 17:13:09,589 INFO L262 CegarLoopResult]: For program point L211-14(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,589 INFO L258 CegarLoopResult]: At program point L261-1(line 261) the Hoare annotation is: false [2020-12-07 17:13:09,589 INFO L258 CegarLoopResult]: At program point L261-2(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2020-12-07 17:13:09,589 INFO L262 CegarLoopResult]: For program point L211-16(line 211) no Hoare annotation was computed. [2020-12-07 17:13:09,589 INFO L262 CegarLoopResult]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,589 INFO L262 CegarLoopResult]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,589 INFO L262 CegarLoopResult]: For program point L6257(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,591 INFO L258 CegarLoopResult]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 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_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2020-12-07 17:13:09,591 INFO L262 CegarLoopResult]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,591 INFO L262 CegarLoopResult]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,591 INFO L262 CegarLoopResult]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,592 INFO L262 CegarLoopResult]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,592 INFO L262 CegarLoopResult]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2020-12-07 17:13:09,592 INFO L258 CegarLoopResult]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: false [2020-12-07 17:13:09,592 INFO L262 CegarLoopResult]: For program point L7579(line 7579) no Hoare annotation was computed. [2020-12-07 17:13:09,592 INFO L262 CegarLoopResult]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2020-12-07 17:13:09,592 INFO L262 CegarLoopResult]: For program point L7579-2(line 7579) no Hoare annotation was computed. [2020-12-07 17:13:09,592 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-07 17:13:09,593 INFO L262 CegarLoopResult]: For program point L7580(lines 7580 7588) no Hoare annotation was computed. [2020-12-07 17:13:09,593 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 17:13:09,593 INFO L258 CegarLoopResult]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2020-12-07 17:13:09,593 INFO L262 CegarLoopResult]: For program point L8918(lines 8918 8923) no Hoare annotation was computed. [2020-12-07 17:13:09,593 INFO L258 CegarLoopResult]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2020-12-07 17:13:09,593 INFO L258 CegarLoopResult]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2020-12-07 17:13:09,594 INFO L258 CegarLoopResult]: At program point L8110(lines 8078 8111) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 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_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2020-12-07 17:13:09,594 INFO L258 CegarLoopResult]: At program point L7598(lines 7577 7599) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not .cse0) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 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_harness_~c_str~0.base 0)) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2020-12-07 17:13:09,594 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 17:13:09,594 INFO L258 CegarLoopResult]: At program point L266-1(line 266) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2020-12-07 17:13:09,594 INFO L258 CegarLoopResult]: At program point L266-2(line 266) the Hoare annotation is: false [2020-12-07 17:13:09,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:13:09 BoogieIcfgContainer [2020-12-07 17:13:09,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-07 17:13:09,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-07 17:13:09,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-07 17:13:09,623 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-07 17:13:09,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:04" (3/4) ... [2020-12-07 17:13:09,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-07 17:13:09,650 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2020-12-07 17:13:09,651 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-07 17:13:09,653 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-07 17:13:09,654 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-07 17:13:09,693 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) [2020-12-07 17:13:09,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) [2020-12-07 17:13:09,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) [2020-12-07 17:13:09,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) [2020-12-07 17:13:09,920 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-07 17:13:09,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-07 17:13:09,922 INFO L168 Benchmark]: Toolchain (without parser) took 12595.83 ms. Allocated memory was 41.9 MB in the beginning and 218.1 MB in the end (delta: 176.2 MB). Free memory was 19.7 MB in the beginning and 48.0 MB in the end (delta: -28.3 MB). Peak memory consumption was 146.2 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:09,922 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 41.9 MB. Free memory was 23.0 MB in the beginning and 22.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-07 17:13:09,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5920.58 ms. Allocated memory was 41.9 MB in the beginning and 111.1 MB in the end (delta: 69.2 MB). Free memory was 19.4 MB in the beginning and 61.9 MB in the end (delta: -42.4 MB). Peak memory consumption was 71.2 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:09,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 268.05 ms. Allocated memory is still 111.1 MB. Free memory was 61.9 MB in the beginning and 51.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:09,924 INFO L168 Benchmark]: Boogie Preprocessor took 144.63 ms. Allocated memory is still 111.1 MB. Free memory was 51.4 MB in the beginning and 47.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:09,924 INFO L168 Benchmark]: RCFGBuilder took 1134.72 ms. Allocated memory is still 111.1 MB. Free memory was 47.2 MB in the beginning and 27.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:09,924 INFO L168 Benchmark]: TraceAbstraction took 4816.94 ms. Allocated memory was 111.1 MB in the beginning and 218.1 MB in the end (delta: 107.0 MB). Free memory was 27.1 MB in the beginning and 123.1 MB in the end (delta: -95.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:09,925 INFO L168 Benchmark]: Witness Printer took 297.32 ms. Allocated memory is still 218.1 MB. Free memory was 123.1 MB in the beginning and 48.0 MB in the end (delta: 75.0 MB). Peak memory consumption was 73.4 MB. Max. memory is 16.1 GB. [2020-12-07 17:13:09,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 41.9 MB. Free memory was 23.0 MB in the beginning and 22.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5920.58 ms. Allocated memory was 41.9 MB in the beginning and 111.1 MB in the end (delta: 69.2 MB). Free memory was 19.4 MB in the beginning and 61.9 MB in the end (delta: -42.4 MB). Peak memory consumption was 71.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 268.05 ms. Allocated memory is still 111.1 MB. Free memory was 61.9 MB in the beginning and 51.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 144.63 ms. Allocated memory is still 111.1 MB. Free memory was 51.4 MB in the beginning and 47.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1134.72 ms. Allocated memory is still 111.1 MB. Free memory was 47.2 MB in the beginning and 27.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4816.94 ms. Allocated memory was 111.1 MB in the beginning and 218.1 MB in the end (delta: 107.0 MB). Free memory was 27.1 MB in the beginning and 123.1 MB in the end (delta: -95.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Witness Printer took 297.32 ms. Allocated memory is still 218.1 MB. Free memory was 123.1 MB in the beginning and 48.0 MB in the end (delta: 75.0 MB). Peak memory consumption was 73.4 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 - 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 5 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: str == 0 && str == 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7577]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8078]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: str == 0 && str == 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: max_size == 16 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: str == 0 && str == 0 - InvariantResult [Line: 8095]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) || (str == 0 && str == 0) - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str == 0 && 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, 86 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 571 SDtfs, 1805 SDslu, 1307 SDs, 0 SdLazy, 336 SolverSat, 65 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, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred 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, 19 LocationsWithAnnotation, 19 PreInvPairs, 33 NumberOfFragments, 197 HoareAnnotationTreeSize, 19 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s 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...