./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_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 3329d9e8531812864307b8906e40c8ad94f37ab5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 15:10:23,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 15:10:23,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 15:10:24,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 15:10:24,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 15:10:24,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 15:10:24,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 15:10:24,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 15:10:24,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 15:10:24,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 15:10:24,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 15:10:24,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 15:10:24,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 15:10:24,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 15:10:24,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 15:10:24,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 15:10:24,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 15:10:24,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 15:10:24,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 15:10:24,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 15:10:24,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 15:10:24,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 15:10:24,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 15:10:24,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 15:10:24,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 15:10:24,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 15:10:24,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 15:10:24,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 15:10:24,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 15:10:24,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 15:10:24,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 15:10:24,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 15:10:24,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 15:10:24,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 15:10:24,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 15:10:24,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 15:10:24,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 15:10:24,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 15:10:24,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 15:10:24,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 15:10:24,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 15:10:24,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-08-26 15:10:24,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 15:10:24,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 15:10:24,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 15:10:24,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 15:10:24,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 15:10:24,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 15:10:24,121 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 15:10:24,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 15:10:24,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 15:10:24,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 15:10:24,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 15:10:24,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 15:10:24,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 15:10:24,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 15:10:24,123 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 15:10:24,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 15:10:24,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 15:10:24,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 15:10:24,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 15:10:24,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 15:10:24,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 15:10:24,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 15:10:24,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 15:10:24,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 15:10:24,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 15:10:24,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 15:10:24,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 15:10:24,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3329d9e8531812864307b8906e40c8ad94f37ab5 [2021-08-26 15:10:24,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 15:10:24,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 15:10:24,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 15:10:24,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 15:10:24,404 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 15:10:24,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-08-26 15:10:24,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c49cf0332/6e1eccdbb05d4209890fdd7196b8f55f/FLAG5f9a99c94 [2021-08-26 15:10:24,950 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 15:10:24,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-08-26 15:10:24,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c49cf0332/6e1eccdbb05d4209890fdd7196b8f55f/FLAG5f9a99c94 [2021-08-26 15:10:25,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c49cf0332/6e1eccdbb05d4209890fdd7196b8f55f [2021-08-26 15:10:25,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 15:10:25,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 15:10:25,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 15:10:25,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 15:10:25,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 15:10:25,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:10:25" (1/1) ... [2021-08-26 15:10:25,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59415875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:25, skipping insertion in model container [2021-08-26 15:10:25,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:10:25" (1/1) ... [2021-08-26 15:10:25,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 15:10:25,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 15:10:25,508 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-08-26 15:10:25,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-08-26 15:10:25,530 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-08-26 15:10:25,535 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-08-26 15:10:26,047 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,062 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,063 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,063 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,064 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,081 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,081 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,083 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,083 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,084 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,085 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,085 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,085 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-08-26 15:10:26,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-08-26 15:10:26,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-08-26 15:10:26,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-08-26 15:10:26,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-08-26 15:10:26,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-08-26 15:10:26,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-08-26 15:10:26,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-08-26 15:10:26,374 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-08-26 15:10:26,374 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-08-26 15:10:26,469 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-08-26 15:10:26,512 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,512 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 15:10:26,568 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 15:10:26,576 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-08-26 15:10:26,576 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-08-26 15:10:26,577 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-08-26 15:10:26,578 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-08-26 15:10:26,616 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,616 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,617 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,617 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,617 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,621 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,621 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,621 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,621 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,622 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,622 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,622 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,623 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-08-26 15:10:26,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-08-26 15:10:26,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-08-26 15:10:26,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-08-26 15:10:26,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-08-26 15:10:26,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-08-26 15:10:26,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-08-26 15:10:26,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-08-26 15:10:26,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-08-26 15:10:26,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-08-26 15:10:26,662 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-08-26 15:10:26,726 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,726 WARN L1507 CHandler]: Possible shadowing of function index [2021-08-26 15:10:26,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 15:10:26,913 INFO L208 MainTranslator]: Completed translation [2021-08-26 15:10:26,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26 WrapperNode [2021-08-26 15:10:26,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 15:10:26,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 15:10:26,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 15:10:26,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 15:10:26,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:26,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 15:10:27,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 15:10:27,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 15:10:27,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 15:10:27,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 15:10:27,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 15:10:27,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 15:10:27,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 15:10:27,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (1/1) ... [2021-08-26 15:10:27,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 15:10:27,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:10:27,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 15:10:27,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 15:10:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 15:10:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 15:10:27,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-26 15:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-26 15:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 15:10:27,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 15:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 15:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-26 15:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-26 15:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 15:10:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 15:10:33,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 15:10:33,776 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-08-26 15:10:33,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:10:33 BoogieIcfgContainer [2021-08-26 15:10:33,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 15:10:33,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 15:10:33,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 15:10:33,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 15:10:33,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:10:25" (1/3) ... [2021-08-26 15:10:33,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375683ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:10:33, skipping insertion in model container [2021-08-26 15:10:33,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:26" (2/3) ... [2021-08-26 15:10:33,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375683ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:10:33, skipping insertion in model container [2021-08-26 15:10:33,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:10:33" (3/3) ... [2021-08-26 15:10:33,785 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2021-08-26 15:10:33,789 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 15:10:33,789 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-26 15:10:33,821 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 15:10:33,825 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 15:10:33,825 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-26 15:10:33,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:33,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-26 15:10:33,839 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:33,839 INFO L512 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] [2021-08-26 15:10:33,840 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:33,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:33,843 INFO L82 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2021-08-26 15:10:33,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:33,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700629961] [2021-08-26 15:10:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:33,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:34,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:34,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700629961] [2021-08-26 15:10:34,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700629961] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:34,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:34,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 15:10:34,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487963107] [2021-08-26 15:10:34,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 15:10:34,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:34,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 15:10:34,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 15:10:34,418 INFO L87 Difference]: Start difference. First operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:34,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:34,476 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2021-08-26 15:10:34,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 15:10:34,477 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-26 15:10:34,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:34,482 INFO L225 Difference]: With dead ends: 141 [2021-08-26 15:10:34,482 INFO L226 Difference]: Without dead ends: 69 [2021-08-26 15:10:34,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 15:10:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-26 15:10:34,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-08-26 15:10:34,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.323076923076923) internal successors, (86), 68 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:34,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-08-26 15:10:34,516 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2021-08-26 15:10:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:34,516 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-08-26 15:10:34,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-08-26 15:10:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-26 15:10:34,518 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:34,518 INFO L512 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] [2021-08-26 15:10:34,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 15:10:34,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:34,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:34,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2021-08-26 15:10:34,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:34,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797310101] [2021-08-26 15:10:34,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:34,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:34,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:34,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797310101] [2021-08-26 15:10:34,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797310101] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:34,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:34,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:10:34,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050738829] [2021-08-26 15:10:34,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:10:34,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:34,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:10:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:10:34,807 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:34,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:34,884 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2021-08-26 15:10:34,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:10:34,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-26 15:10:34,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:34,885 INFO L225 Difference]: With dead ends: 115 [2021-08-26 15:10:34,885 INFO L226 Difference]: Without dead ends: 69 [2021-08-26 15:10:34,886 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:10:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-26 15:10:34,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-08-26 15:10:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 68 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2021-08-26 15:10:34,890 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2021-08-26 15:10:34,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:34,890 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2021-08-26 15:10:34,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:34,891 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2021-08-26 15:10:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-26 15:10:34,892 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:34,892 INFO L512 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] [2021-08-26 15:10:34,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 15:10:34,892 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:34,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:34,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2021-08-26 15:10:34,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:34,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858721687] [2021-08-26 15:10:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:34,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:35,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:35,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858721687] [2021-08-26 15:10:35,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858721687] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:35,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:35,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:10:35,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746990252] [2021-08-26 15:10:35,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:10:35,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:35,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:10:35,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:10:35,108 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:35,262 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2021-08-26 15:10:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 15:10:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-08-26 15:10:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:35,264 INFO L225 Difference]: With dead ends: 168 [2021-08-26 15:10:35,264 INFO L226 Difference]: Without dead ends: 113 [2021-08-26 15:10:35,265 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:10:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-08-26 15:10:35,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2021-08-26 15:10:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 72 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:35,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2021-08-26 15:10:35,270 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2021-08-26 15:10:35,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:35,270 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2021-08-26 15:10:35,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:35,270 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2021-08-26 15:10:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-26 15:10:35,271 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:35,271 INFO L512 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] [2021-08-26 15:10:35,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 15:10:35,272 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:35,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:35,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2021-08-26 15:10:35,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:35,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399622413] [2021-08-26 15:10:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:35,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:35,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:35,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:35,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399622413] [2021-08-26 15:10:35,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399622413] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:35,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:35,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:10:35,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060756978] [2021-08-26 15:10:35,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:10:35,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:35,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:10:35,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:10:35,509 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:35,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:35,657 INFO L93 Difference]: Finished difference Result 142 states and 173 transitions. [2021-08-26 15:10:35,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 15:10:35,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-08-26 15:10:35,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:35,659 INFO L225 Difference]: With dead ends: 142 [2021-08-26 15:10:35,659 INFO L226 Difference]: Without dead ends: 93 [2021-08-26 15:10:35,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:10:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-08-26 15:10:35,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2021-08-26 15:10:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 76 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2021-08-26 15:10:35,662 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2021-08-26 15:10:35,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:35,663 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2021-08-26 15:10:35,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2021-08-26 15:10:35,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-26 15:10:35,664 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:35,664 INFO L512 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] [2021-08-26 15:10:35,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 15:10:35,664 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:35,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:35,665 INFO L82 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2021-08-26 15:10:35,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:35,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450448239] [2021-08-26 15:10:35,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:35,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:37,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:37,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450448239] [2021-08-26 15:10:37,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450448239] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:37,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:37,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-26 15:10:37,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848053962] [2021-08-26 15:10:37,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 15:10:37,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:37,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 15:10:37,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-26 15:10:37,723 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:42,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:42,519 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-08-26 15:10:42,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 15:10:42,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-08-26 15:10:42,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:42,521 INFO L225 Difference]: With dead ends: 128 [2021-08-26 15:10:42,521 INFO L226 Difference]: Without dead ends: 77 [2021-08-26 15:10:42,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 392.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-26 15:10:42,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-08-26 15:10:42,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2021-08-26 15:10:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 72 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2021-08-26 15:10:42,532 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 37 [2021-08-26 15:10:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:42,533 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2021-08-26 15:10:42,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2021-08-26 15:10:42,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-26 15:10:42,534 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:42,534 INFO L512 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] [2021-08-26 15:10:42,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 15:10:42,534 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:42,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:42,535 INFO L82 PathProgramCache]: Analyzing trace with hash 70791141, now seen corresponding path program 1 times [2021-08-26 15:10:42,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:42,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067306593] [2021-08-26 15:10:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:42,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:43,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:43,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067306593] [2021-08-26 15:10:43,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067306593] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:43,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:43,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 15:10:43,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79549676] [2021-08-26 15:10:43,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 15:10:43,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:43,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 15:10:43,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:10:43,271 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:43,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:43,599 INFO L93 Difference]: Finished difference Result 128 states and 148 transitions. [2021-08-26 15:10:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 15:10:43,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-08-26 15:10:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:43,600 INFO L225 Difference]: With dead ends: 128 [2021-08-26 15:10:43,600 INFO L226 Difference]: Without dead ends: 73 [2021-08-26 15:10:43,601 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 214.7ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-08-26 15:10:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-08-26 15:10:43,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-08-26 15:10:43,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 72 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2021-08-26 15:10:43,604 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 45 [2021-08-26 15:10:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:43,604 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2021-08-26 15:10:43,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2021-08-26 15:10:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-26 15:10:43,605 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:43,605 INFO L512 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] [2021-08-26 15:10:43,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 15:10:43,605 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:43,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:43,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1141387003, now seen corresponding path program 1 times [2021-08-26 15:10:43,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:43,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91227387] [2021-08-26 15:10:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:43,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:43,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:43,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91227387] [2021-08-26 15:10:43,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91227387] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:43,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:43,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:10:43,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844279509] [2021-08-26 15:10:43,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:10:43,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:43,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:10:43,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:10:43,967 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:46,454 INFO L93 Difference]: Finished difference Result 176 states and 203 transitions. [2021-08-26 15:10:46,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 15:10:46,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-08-26 15:10:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:46,455 INFO L225 Difference]: With dead ends: 176 [2021-08-26 15:10:46,455 INFO L226 Difference]: Without dead ends: 122 [2021-08-26 15:10:46,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 119.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:10:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-08-26 15:10:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2021-08-26 15:10:46,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.2) internal successors, (90), 78 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2021-08-26 15:10:46,459 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 49 [2021-08-26 15:10:46,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:46,459 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2021-08-26 15:10:46,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:46,459 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2021-08-26 15:10:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-26 15:10:46,459 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:46,459 INFO L512 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] [2021-08-26 15:10:46,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 15:10:46,460 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:46,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:46,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1565232391, now seen corresponding path program 1 times [2021-08-26 15:10:46,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:46,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074905419] [2021-08-26 15:10:46,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:46,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:46,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:46,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:46,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074905419] [2021-08-26 15:10:46,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074905419] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:46,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:46,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:10:46,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774983334] [2021-08-26 15:10:46,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 15:10:46,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:46,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 15:10:46,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 15:10:46,651 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:46,819 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2021-08-26 15:10:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:10:46,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-08-26 15:10:46,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:46,821 INFO L225 Difference]: With dead ends: 138 [2021-08-26 15:10:46,821 INFO L226 Difference]: Without dead ends: 69 [2021-08-26 15:10:46,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:10:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-26 15:10:46,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-08-26 15:10:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 68 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-08-26 15:10:46,830 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 49 [2021-08-26 15:10:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:46,832 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-08-26 15:10:46,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-08-26 15:10:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-26 15:10:46,835 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:46,835 INFO L512 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] [2021-08-26 15:10:46,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 15:10:46,836 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:46,836 INFO L82 PathProgramCache]: Analyzing trace with hash -922532285, now seen corresponding path program 1 times [2021-08-26 15:10:46,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:46,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171302281] [2021-08-26 15:10:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:46,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:48,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:48,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171302281] [2021-08-26 15:10:48,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171302281] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:48,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:48,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 15:10:48,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036242800] [2021-08-26 15:10:48,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 15:10:48,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:48,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 15:10:48,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 15:10:48,692 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:51,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:51,083 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-08-26 15:10:51,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 15:10:51,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-08-26 15:10:51,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:51,084 INFO L225 Difference]: With dead ends: 69 [2021-08-26 15:10:51,085 INFO L226 Difference]: Without dead ends: 67 [2021-08-26 15:10:51,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 197.2ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-26 15:10:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-08-26 15:10:51,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-08-26 15:10:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 64 states have (on average 1.125) internal successors, (72), 66 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-08-26 15:10:51,088 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 49 [2021-08-26 15:10:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:51,089 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-08-26 15:10:51,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-08-26 15:10:51,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-26 15:10:51,090 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:51,090 INFO L512 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] [2021-08-26 15:10:51,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 15:10:51,090 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:51,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:51,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1790132923, now seen corresponding path program 1 times [2021-08-26 15:10:51,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:51,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536132291] [2021-08-26 15:10:51,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:51,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:53,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:53,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536132291] [2021-08-26 15:10:53,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536132291] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:53,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:53,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 15:10:53,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012069922] [2021-08-26 15:10:53,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 15:10:53,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 15:10:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 15:10:53,002 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:55,361 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2021-08-26 15:10:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 15:10:55,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-08-26 15:10:55,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:55,362 INFO L225 Difference]: With dead ends: 67 [2021-08-26 15:10:55,362 INFO L226 Difference]: Without dead ends: 65 [2021-08-26 15:10:55,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 173.8ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-26 15:10:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-08-26 15:10:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-08-26 15:10:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 64 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2021-08-26 15:10:55,367 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 51 [2021-08-26 15:10:55,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:55,367 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2021-08-26 15:10:55,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:55,368 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2021-08-26 15:10:55,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-26 15:10:55,368 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:55,368 INFO L512 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] [2021-08-26 15:10:55,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 15:10:55,368 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:55,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1964276967, now seen corresponding path program 1 times [2021-08-26 15:10:55,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:55,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989450240] [2021-08-26 15:10:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:55,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:10:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:10:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:10:55,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:10:55,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989450240] [2021-08-26 15:10:55,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989450240] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:10:55,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:10:55,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 15:10:55,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947446658] [2021-08-26 15:10:55,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:10:55,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:10:55,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:10:55,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:10:55,842 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:58,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:10:58,159 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2021-08-26 15:10:58,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 15:10:58,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-08-26 15:10:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:10:58,160 INFO L225 Difference]: With dead ends: 65 [2021-08-26 15:10:58,160 INFO L226 Difference]: Without dead ends: 63 [2021-08-26 15:10:58,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 114.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:10:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-08-26 15:10:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-08-26 15:10:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.096774193548387) internal successors, (68), 62 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-08-26 15:10:58,163 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 53 [2021-08-26 15:10:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:10:58,163 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-08-26 15:10:58,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:10:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-08-26 15:10:58,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-26 15:10:58,163 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:10:58,164 INFO L512 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] [2021-08-26 15:10:58,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-26 15:10:58,164 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-26 15:10:58,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:10:58,164 INFO L82 PathProgramCache]: Analyzing trace with hash -2115314391, now seen corresponding path program 1 times [2021-08-26 15:10:58,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:10:58,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615804682] [2021-08-26 15:10:58,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:10:58,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:11:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:11:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:11:00,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:11:00,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615804682] [2021-08-26 15:11:00,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615804682] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:11:00,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:11:00,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 15:11:00,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473970358] [2021-08-26 15:11:00,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 15:11:00,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:11:00,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 15:11:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-26 15:11:00,629 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:11:03,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:11:03,023 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-08-26 15:11:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 15:11:03,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-08-26 15:11:03,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:11:03,023 INFO L225 Difference]: With dead ends: 63 [2021-08-26 15:11:03,023 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 15:11:03,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.9ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-08-26 15:11:03,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 15:11:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 15:11:03,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:11:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 15:11:03,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-08-26 15:11:03,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:11:03,025 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 15:11:03,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 15:11:03,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 15:11:03,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 15:11:03,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 15:11:03,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 15:11:03,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 15:11:03,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 15:11:03,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-26 15:11:03,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 15:11:03,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:11:03,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:11:03,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:11:03,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:11:03,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:11:03,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L7270(lines 7270 7283) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L6659(lines 6659 6661) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L6659-2(lines 6659 6661) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L7130(lines 7130 7134) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L7122(lines 7122 7135) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-08-26 15:11:03,423 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7272-2(lines 7272 7274) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7272(line 7272) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L853 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: (and (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7272-4(lines 7272 7274) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-1(line 7248) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-6(lines 7248 7249) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-4(lines 7248 7249) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-3(line 7248) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L853 garLoopResultBuilder]: At program point L6951(lines 6950 6952) the Hoare annotation is: (and (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-9(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-7(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-14(line 7248) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-13(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L853 garLoopResultBuilder]: At program point L7248-12(lines 7246 7252) the Hoare annotation is: (and (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 0) (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base) (+ ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 4)) 0)) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED) 0))) [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-11(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,424 INFO L857 garLoopResultBuilder]: For program point L7248-17(lines 7248 7249) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L7248-16(line 7248) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L7248-22(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L7248-20(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L7248-19(lines 7248 7249) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L853 garLoopResultBuilder]: At program point L7248-25(lines 7246 7252) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 0)) (.cse1 (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_aws_byte_buf_is_valid_~buf.base) (+ ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 4)) 0))) (.cse2 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse3 (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) (.cse4 (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) (.cse5 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0)) (.cse6 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) (.cse7 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED) 0)))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_aws_byte_buf_is_valid_#res| 0) .cse3 .cse4 (<= 0 |ULTIMATE.start_aws_byte_buf_is_valid_#res|) .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.offset 0) .cse6 (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.base |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) .cse7))) [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L7248-24(lines 7248 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L860 garLoopResultBuilder]: At program point L8910(line 8910) the Hoare annotation is: true [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L8894(lines 8894 8909) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,425 INFO L857 garLoopResultBuilder]: For program point L7251(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-4(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-3(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-2(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-9(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-8(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-6(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-13(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-12(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-11(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-17(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L7251-15(line 7251) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L857 garLoopResultBuilder]: For program point L6658(lines 6658 6663) no Hoare annotation was computed. [2021-08-26 15:11:03,426 INFO L853 garLoopResultBuilder]: At program point L6947(lines 6943 6948) the Hoare annotation is: (and (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) [2021-08-26 15:11:03,429 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 15:11:03,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:03,451 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,451 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,451 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:03,466 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,466 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,466 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:03,466 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,466 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,466 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:03,467 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,467 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,467 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:03,467 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,468 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:03,468 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:03,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:11:03 BoogieIcfgContainer [2021-08-26 15:11:03,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 15:11:03,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 15:11:03,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 15:11:03,469 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 15:11:03,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:10:33" (3/4) ... [2021-08-26 15:11:03,472 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 15:11:03,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2021-08-26 15:11:03,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-08-26 15:11:03,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-08-26 15:11:03,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-08-26 15:11:03,486 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-08-26 15:11:03,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-26 15:11:03,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 15:11:03,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 15:11:03,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf [2021-08-26 15:11:03,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && !(\result == 0)) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED] == 0) [2021-08-26 15:11:03,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && buf == buf) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED] == 0)) || (((((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && !(\result == 0)) && buf == 0) && !(buf == 0)) && buf == 0) && buf == 0) && buf == buf) && buf == buf) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED] == 0)) [2021-08-26 15:11:04,146 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 15:11:04,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 15:11:04,147 INFO L168 Benchmark]: Toolchain (without parser) took 38952.54 ms. Allocated memory was 56.6 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 36.5 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 752.3 MB. Max. memory is 16.1 GB. [2021-08-26 15:11:04,148 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 56.6 MB. Free memory was 38.1 MB in the beginning and 38.1 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 15:11:04,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1717.91 ms. Allocated memory was 56.6 MB in the beginning and 127.9 MB in the end (delta: 71.3 MB). Free memory was 36.1 MB in the beginning and 73.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2021-08-26 15:11:04,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.27 ms. Allocated memory is still 127.9 MB. Free memory was 73.1 MB in the beginning and 61.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 15:11:04,149 INFO L168 Benchmark]: Boogie Preprocessor took 84.07 ms. Allocated memory is still 127.9 MB. Free memory was 61.7 MB in the beginning and 54.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 15:11:04,149 INFO L168 Benchmark]: RCFGBuilder took 6636.43 ms. Allocated memory was 127.9 MB in the beginning and 578.8 MB in the end (delta: 450.9 MB). Free memory was 54.2 MB in the beginning and 246.5 MB in the end (delta: -192.3 MB). Peak memory consumption was 323.5 MB. Max. memory is 16.1 GB. [2021-08-26 15:11:04,149 INFO L168 Benchmark]: TraceAbstraction took 29689.81 ms. Allocated memory was 578.8 MB in the beginning and 1.2 GB in the end (delta: 574.6 MB). Free memory was 246.5 MB in the beginning and 527.9 MB in the end (delta: -281.5 MB). Peak memory consumption was 293.1 MB. Max. memory is 16.1 GB. [2021-08-26 15:11:04,149 INFO L168 Benchmark]: Witness Printer took 677.00 ms. Allocated memory is still 1.2 GB. Free memory was 527.9 MB in the beginning and 1.1 GB in the end (delta: -554.2 MB). Peak memory consumption was 147.9 MB. Max. memory is 16.1 GB. [2021-08-26 15:11:04,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 56.6 MB. Free memory was 38.1 MB in the beginning and 38.1 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1717.91 ms. Allocated memory was 56.6 MB in the beginning and 127.9 MB in the end (delta: 71.3 MB). Free memory was 36.1 MB in the beginning and 73.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 142.27 ms. Allocated memory is still 127.9 MB. Free memory was 73.1 MB in the beginning and 61.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.07 ms. Allocated memory is still 127.9 MB. Free memory was 61.7 MB in the beginning and 54.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6636.43 ms. Allocated memory was 127.9 MB in the beginning and 578.8 MB in the end (delta: 450.9 MB). Free memory was 54.2 MB in the beginning and 246.5 MB in the end (delta: -192.3 MB). Peak memory consumption was 323.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29689.81 ms. Allocated memory was 578.8 MB in the beginning and 1.2 GB in the end (delta: 574.6 MB). Free memory was 246.5 MB in the beginning and 527.9 MB in the end (delta: -281.5 MB). Peak memory consumption was 293.1 MB. Max. memory is 16.1 GB. * Witness Printer took 677.00 ms. Allocated memory is still 1.2 GB. Free memory was 527.9 MB in the beginning and 1.1 GB in the end (delta: -554.2 MB). Peak memory consumption was 147.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 29609.3ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 16.6ms, AutomataDifference: 17724.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 394.6ms, InitialAbstractionConstructionTime: 6.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 858 SDtfs, 824 SDslu, 1545 SDs, 0 SdLazy, 521 SolverSat, 48 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 15845.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1635.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=7, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.5ms AutomataMinimizationTime, 12 MinimizatonAttempts, 103 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 177 HoareAnnotationTreeSize, 6 FomulaSimplifications, 175 FormulaSimplificationTreeSizeReduction, 27.2ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 360.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 216.9ms SsaConstructionTime, 8091.7ms SatisfiabilityAnalysisTime, 2854.3ms InterpolantComputationTime, 512 NumberOfCodeBlocks, 512 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 500 ConstructedInterpolants, 0 QuantifiedInterpolants, 1797 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 7246]: Loop Invariant [2021-08-26 15:11:04,156 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:04,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,158 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED Derived loop invariant: ((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && !(\result == 0)) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED] == 0) - InvariantResult [Line: 8910]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6943]: Loop Invariant Derived loop invariant: (((!(\result == 0) && buf == 0) && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: ((buf == 0 && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: ((buf == 0 && !(buf == 0)) && buf == 0) && buf == buf - InvariantResult [Line: 7246]: Loop Invariant [2021-08-26 15:11:04,159 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,160 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,160 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:04,160 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,160 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,160 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:04,161 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,161 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,161 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED [2021-08-26 15:11:04,161 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,161 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-26 15:11:04,161 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED Derived loop invariant: (((((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && !(\result == 0)) && \result <= 0) && buf == 0) && !(buf == 0)) && 0 <= \result) && buf == 0) && buf == buf) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED] == 0)) || (((((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && !(\result == 0)) && buf == 0) && !(buf == 0)) && buf == 0) && buf == 0) && buf == buf) && buf == buf) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_OVERFLOW_DETECTED] == 0)) RESULT: Ultimate proved your program to be correct! [2021-08-26 15:11:04,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...