./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 9a8b2e8d 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_1.3.100.v20150511-1540.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 0.1.25-9a8b2e8 [2020-10-20 03:20:01,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:20:01,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:20:01,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:20:01,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:20:01,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:20:01,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:20:01,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:20:01,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:20:01,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:20:01,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:20:01,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:20:01,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:20:01,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:20:01,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:20:01,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:20:01,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:20:01,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:20:01,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:20:01,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:20:01,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:20:01,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:20:01,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:20:01,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:20:01,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:20:01,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:20:01,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:20:01,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:20:01,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:20:01,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:20:01,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:20:01,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:20:01,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:20:01,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:20:01,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:20:01,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:20:01,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:20:01,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:20:01,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:20:01,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:20:01,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:20:01,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-20 03:20:01,594 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:20:01,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:20:01,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:20:01,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:20:01,597 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:20:01,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:20:01,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:20:01,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:20:01,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:20:01,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:20:01,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:20:01,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:20:01,599 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:20:01,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:20:01,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:20:01,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:20:01,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:20:01,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:20:01,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:20:01,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:20:01,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:20:01,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:20:01,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:20:01,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:20:01,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:20:01,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:20:01,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 03:20:01,602 INFO L138 SettingsManager]: * To the following directory=dump/ 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 [2020-10-20 03:20:01,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:20:01,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:20:01,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:20:01,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:20:01,831 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:20:01,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2020-10-20 03:20:01,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6325d90/3a3134219790468b85e5533f08a6d236/FLAG0540ab103 [2020-10-20 03:20:02,841 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:20:02,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2020-10-20 03:20:02,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6325d90/3a3134219790468b85e5533f08a6d236/FLAG0540ab103 [2020-10-20 03:20:03,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6325d90/3a3134219790468b85e5533f08a6d236 [2020-10-20 03:20:03,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:20:03,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:20:03,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:20:03,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:20:03,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:20:03,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:20:03" (1/1) ... [2020-10-20 03:20:03,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ef3652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:03, skipping insertion in model container [2020-10-20 03:20:03,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:20:03" (1/1) ... [2020-10-20 03:20:03,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:20:03,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:20:03,874 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-10-20 03:20:03,880 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-10-20 03:20:04,893 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,896 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,897 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,898 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,901 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,925 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,926 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,928 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,929 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,931 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,932 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,933 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:04,934 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:05,451 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-10-20 03:20:05,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-10-20 03:20:05,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-10-20 03:20:05,456 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-10-20 03:20:05,458 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-10-20 03:20:05,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-10-20 03:20:05,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-10-20 03:20:05,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-10-20 03:20:05,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-10-20 03:20:05,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-10-20 03:20:05,659 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-10-20 03:20:05,815 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:05,816 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:05,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:20:05,987 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:20:06,010 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-10-20 03:20:06,011 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-10-20 03:20:06,047 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,048 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,049 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,050 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,051 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,058 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,060 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,061 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,062 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,063 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,064 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,065 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,066 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-10-20 03:20:06,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-10-20 03:20:06,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-10-20 03:20:06,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-10-20 03:20:06,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-10-20 03:20:06,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-10-20 03:20:06,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-10-20 03:20:06,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-10-20 03:20:06,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-10-20 03:20:06,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-10-20 03:20:06,468 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-10-20 03:20:06,549 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,550 WARN L1500 CHandler]: Possible shadowing of function index [2020-10-20 03:20:06,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:20:07,748 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:20:07,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07 WrapperNode [2020-10-20 03:20:07,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:20:07,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:20:07,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:20:07,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:20:07,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:07,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:07,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:20:07,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:20:07,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:20:07,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:20:08,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:08,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:08,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:08,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:08,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:08,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:08,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... [2020-10-20 03:20:08,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:20:08,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:20:08,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:20:08,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:20:08,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 03:20:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 03:20:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 03:20:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:20:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:20:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:20:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 03:20:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 03:20:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:20:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:20:16,792 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:20:16,793 INFO L298 CfgBuilder]: Removed 48 assume(true) statements. [2020-10-20 03:20:16,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:20:16 BoogieIcfgContainer [2020-10-20 03:20:16,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:20:16,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:20:16,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:20:16,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:20:16,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:20:03" (1/3) ... [2020-10-20 03:20:16,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427917e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:20:16, skipping insertion in model container [2020-10-20 03:20:16,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:20:07" (2/3) ... [2020-10-20 03:20:16,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427917e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:20:16, skipping insertion in model container [2020-10-20 03:20:16,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:20:16" (3/3) ... [2020-10-20 03:20:16,805 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2020-10-20 03:20:16,818 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:20:16,827 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-20 03:20:16,842 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:20:16,869 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:20:16,870 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:20:16,870 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:20:16,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:20:16,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:20:16,871 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:20:16,871 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:20:16,871 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:20:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-20 03:20:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 03:20:16,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:16,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:16,900 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:16,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:16,908 INFO L82 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2020-10-20 03:20:16,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:16,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947881134] [2020-10-20 03:20:16,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:18,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947881134] [2020-10-20 03:20:18,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:18,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:20:18,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606066740] [2020-10-20 03:20:18,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 03:20:18,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:18,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 03:20:18,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:20:18,032 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-10-20 03:20:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:18,061 INFO L93 Difference]: Finished difference Result 145 states and 195 transitions. [2020-10-20 03:20:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 03:20:18,063 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2020-10-20 03:20:18,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:18,074 INFO L225 Difference]: With dead ends: 145 [2020-10-20 03:20:18,075 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 03:20:18,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:20:18,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 03:20:18,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-20 03:20:18,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 03:20:18,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2020-10-20 03:20:18,117 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2020-10-20 03:20:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:18,118 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2020-10-20 03:20:18,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 03:20:18,119 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2020-10-20 03:20:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 03:20:18,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:18,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:18,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:20:18,121 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:18,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:18,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2020-10-20 03:20:18,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:18,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173407838] [2020-10-20 03:20:18,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:18,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173407838] [2020-10-20 03:20:18,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:18,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:20:18,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306506052] [2020-10-20 03:20:18,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:20:18,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:18,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:20:18,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:20:18,420 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand 4 states. [2020-10-20 03:20:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:18,524 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2020-10-20 03:20:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:20:18,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-20 03:20:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:18,528 INFO L225 Difference]: With dead ends: 115 [2020-10-20 03:20:18,529 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 03:20:18,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:20:18,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 03:20:18,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-20 03:20:18,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 03:20:18,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2020-10-20 03:20:18,543 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2020-10-20 03:20:18,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:18,543 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2020-10-20 03:20:18,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:20:18,543 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2020-10-20 03:20:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 03:20:18,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:18,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:18,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:20:18,546 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:18,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:18,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2020-10-20 03:20:18,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:18,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340945398] [2020-10-20 03:20:18,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:18,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340945398] [2020-10-20 03:20:18,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:18,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:20:18,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927605858] [2020-10-20 03:20:18,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:20:18,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:18,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:20:18,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:20:18,811 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand 4 states. [2020-10-20 03:20:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:18,935 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2020-10-20 03:20:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:20:18,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-20 03:20:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:18,938 INFO L225 Difference]: With dead ends: 168 [2020-10-20 03:20:18,938 INFO L226 Difference]: Without dead ends: 113 [2020-10-20 03:20:18,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:20:18,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-20 03:20:18,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2020-10-20 03:20:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 03:20:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2020-10-20 03:20:18,949 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2020-10-20 03:20:18,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:18,950 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2020-10-20 03:20:18,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:20:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2020-10-20 03:20:18,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 03:20:18,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:18,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:18,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:20:18,953 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:18,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:18,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2020-10-20 03:20:18,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:18,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880164211] [2020-10-20 03:20:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:19,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880164211] [2020-10-20 03:20:19,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:19,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:20:19,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188721488] [2020-10-20 03:20:19,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:20:19,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:19,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:20:19,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:20:19,222 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 4 states. [2020-10-20 03:20:19,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:19,285 INFO L93 Difference]: Finished difference Result 142 states and 173 transitions. [2020-10-20 03:20:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:20:19,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-20 03:20:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:19,287 INFO L225 Difference]: With dead ends: 142 [2020-10-20 03:20:19,287 INFO L226 Difference]: Without dead ends: 93 [2020-10-20 03:20:19,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:20:19,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-20 03:20:19,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2020-10-20 03:20:19,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-20 03:20:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2020-10-20 03:20:19,297 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2020-10-20 03:20:19,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:19,297 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2020-10-20 03:20:19,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:20:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2020-10-20 03:20:19,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 03:20:19,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:19,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:19,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:20:19,300 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:19,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:19,301 INFO L82 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2020-10-20 03:20:19,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:19,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873329913] [2020-10-20 03:20:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:22,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:22,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873329913] [2020-10-20 03:20:22,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:22,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 03:20:22,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928830463] [2020-10-20 03:20:22,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 03:20:22,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:22,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 03:20:22,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 03:20:22,237 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand 8 states. [2020-10-20 03:20:26,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:26,802 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2020-10-20 03:20:26,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 03:20:26,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-10-20 03:20:26,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:26,807 INFO L225 Difference]: With dead ends: 128 [2020-10-20 03:20:26,807 INFO L226 Difference]: Without dead ends: 77 [2020-10-20 03:20:26,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-20 03:20:26,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-20 03:20:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2020-10-20 03:20:26,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 03:20:26,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2020-10-20 03:20:26,829 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 37 [2020-10-20 03:20:26,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:26,830 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2020-10-20 03:20:26,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 03:20:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2020-10-20 03:20:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 03:20:26,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:26,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:26,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:20:26,837 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:26,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:26,839 INFO L82 PathProgramCache]: Analyzing trace with hash 70791141, now seen corresponding path program 1 times [2020-10-20 03:20:26,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:26,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855935233] [2020-10-20 03:20:26,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:27,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:27,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855935233] [2020-10-20 03:20:27,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:27,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 03:20:27,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810271878] [2020-10-20 03:20:27,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 03:20:27,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:27,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 03:20:27,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:20:27,493 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand 7 states. [2020-10-20 03:20:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:27,629 INFO L93 Difference]: Finished difference Result 128 states and 148 transitions. [2020-10-20 03:20:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:20:27,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-20 03:20:27,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:27,631 INFO L225 Difference]: With dead ends: 128 [2020-10-20 03:20:27,631 INFO L226 Difference]: Without dead ends: 73 [2020-10-20 03:20:27,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-20 03:20:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-20 03:20:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-20 03:20:27,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 03:20:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2020-10-20 03:20:27,639 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 45 [2020-10-20 03:20:27,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:27,640 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2020-10-20 03:20:27,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 03:20:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2020-10-20 03:20:27,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-20 03:20:27,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:27,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:27,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:20:27,643 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:27,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:27,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1141387003, now seen corresponding path program 1 times [2020-10-20 03:20:27,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:27,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232273832] [2020-10-20 03:20:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:28,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232273832] [2020-10-20 03:20:28,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:28,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 03:20:28,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311552623] [2020-10-20 03:20:28,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:20:28,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:28,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:20:28,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:20:28,188 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand 5 states. [2020-10-20 03:20:30,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:30,562 INFO L93 Difference]: Finished difference Result 176 states and 203 transitions. [2020-10-20 03:20:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:20:30,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-10-20 03:20:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:30,566 INFO L225 Difference]: With dead ends: 176 [2020-10-20 03:20:30,566 INFO L226 Difference]: Without dead ends: 122 [2020-10-20 03:20:30,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:20:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-20 03:20:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2020-10-20 03:20:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-20 03:20:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2020-10-20 03:20:30,589 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 49 [2020-10-20 03:20:30,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:30,590 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2020-10-20 03:20:30,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:20:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2020-10-20 03:20:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-20 03:20:30,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:30,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:30,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:20:30,592 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:30,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:30,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1565232391, now seen corresponding path program 1 times [2020-10-20 03:20:30,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:30,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104925698] [2020-10-20 03:20:30,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:30,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104925698] [2020-10-20 03:20:30,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:30,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:20:30,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882909967] [2020-10-20 03:20:30,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:20:30,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:30,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:20:30,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:20:30,860 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand 4 states. [2020-10-20 03:20:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:30,912 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2020-10-20 03:20:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:20:30,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-10-20 03:20:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:30,914 INFO L225 Difference]: With dead ends: 138 [2020-10-20 03:20:30,914 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 03:20:30,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:20:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 03:20:30,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-20 03:20:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 03:20:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-10-20 03:20:30,920 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 49 [2020-10-20 03:20:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:30,921 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-10-20 03:20:30,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:20:30,921 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-10-20 03:20:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-20 03:20:30,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:30,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:30,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 03:20:30,923 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:30,924 INFO L82 PathProgramCache]: Analyzing trace with hash -922532285, now seen corresponding path program 1 times [2020-10-20 03:20:30,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:30,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341166538] [2020-10-20 03:20:30,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:34,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341166538] [2020-10-20 03:20:34,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:34,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 03:20:34,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497587445] [2020-10-20 03:20:34,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:20:34,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:34,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:20:34,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:20:34,508 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-10-20 03:20:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:34,670 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2020-10-20 03:20:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:20:34,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-20 03:20:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:34,672 INFO L225 Difference]: With dead ends: 69 [2020-10-20 03:20:34,672 INFO L226 Difference]: Without dead ends: 67 [2020-10-20 03:20:34,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-20 03:20:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-20 03:20:34,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-20 03:20:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-20 03:20:34,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-10-20 03:20:34,685 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 49 [2020-10-20 03:20:34,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:34,686 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-10-20 03:20:34,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:20:34,686 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-10-20 03:20:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 03:20:34,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:34,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:34,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 03:20:34,692 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:34,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1790071355, now seen corresponding path program 1 times [2020-10-20 03:20:34,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:34,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943942318] [2020-10-20 03:20:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:37,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943942318] [2020-10-20 03:20:37,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:37,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 03:20:37,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643369738] [2020-10-20 03:20:37,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:20:37,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:37,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:20:37,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:20:37,904 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 6 states. [2020-10-20 03:20:38,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:38,030 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-10-20 03:20:38,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:20:38,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-10-20 03:20:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:38,031 INFO L225 Difference]: With dead ends: 67 [2020-10-20 03:20:38,032 INFO L226 Difference]: Without dead ends: 65 [2020-10-20 03:20:38,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-20 03:20:38,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-20 03:20:38,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-20 03:20:38,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-20 03:20:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2020-10-20 03:20:38,039 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 51 [2020-10-20 03:20:38,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:38,040 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2020-10-20 03:20:38,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:20:38,040 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2020-10-20 03:20:38,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-20 03:20:38,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:38,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:38,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 03:20:38,048 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:38,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2023505447, now seen corresponding path program 1 times [2020-10-20 03:20:38,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:38,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872052290] [2020-10-20 03:20:38,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:38,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872052290] [2020-10-20 03:20:38,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:38,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 03:20:38,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143781894] [2020-10-20 03:20:38,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:20:38,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:38,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:20:38,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:20:38,642 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 5 states. [2020-10-20 03:20:40,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:40,895 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-10-20 03:20:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:20:40,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-20 03:20:40,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:40,897 INFO L225 Difference]: With dead ends: 65 [2020-10-20 03:20:40,897 INFO L226 Difference]: Without dead ends: 63 [2020-10-20 03:20:40,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:20:40,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-20 03:20:40,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-20 03:20:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-20 03:20:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2020-10-20 03:20:40,903 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 53 [2020-10-20 03:20:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:40,904 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2020-10-20 03:20:40,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:20:40,904 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2020-10-20 03:20:40,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-20 03:20:40,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:20:40,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:20:40,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 03:20:40,910 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:20:40,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:20:40,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1031258263, now seen corresponding path program 1 times [2020-10-20 03:20:40,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:20:40,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752828731] [2020-10-20 03:20:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:20:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:20:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:20:45,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752828731] [2020-10-20 03:20:45,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:20:45,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 03:20:45,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529832468] [2020-10-20 03:20:45,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:20:45,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:20:45,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:20:45,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:20:45,171 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 6 states. [2020-10-20 03:20:47,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:20:47,528 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-10-20 03:20:47,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:20:47,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-20 03:20:47,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:20:47,530 INFO L225 Difference]: With dead ends: 63 [2020-10-20 03:20:47,530 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:20:47,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 03:20:47,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:20:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:20:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:20:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:20:47,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-10-20 03:20:47,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:20:47,532 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:20:47,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:20:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:20:47,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:20:47,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 03:20:47,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 03:20:47,781 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2020-10-20 03:20:47,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,795 INFO L274 CegarLoopResult]: For program point L7270(lines 7270 7283) no Hoare annotation was computed. [2020-10-20 03:20:47,795 INFO L274 CegarLoopResult]: For program point L6659(lines 6659 6661) no Hoare annotation was computed. [2020-10-20 03:20:47,795 INFO L274 CegarLoopResult]: For program point L6659-2(lines 6659 6661) no Hoare annotation was computed. [2020-10-20 03:20:47,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 03:20:47,796 INFO L274 CegarLoopResult]: For program point L7122(lines 7122 7135) no Hoare annotation was computed. [2020-10-20 03:20:47,796 INFO L274 CegarLoopResult]: For program point L7272-2(lines 7272 7274) no Hoare annotation was computed. [2020-10-20 03:20:47,796 INFO L274 CegarLoopResult]: For program point L7272(line 7272) no Hoare annotation was computed. [2020-10-20 03:20:47,796 INFO L274 CegarLoopResult]: For program point L7272-4(lines 7272 7274) no Hoare annotation was computed. [2020-10-20 03:20:47,796 INFO L274 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-10-20 03:20:47,796 INFO L274 CegarLoopResult]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2020-10-20 03:20:47,797 INFO L274 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-10-20 03:20:47,797 INFO L274 CegarLoopResult]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2020-10-20 03:20:47,797 INFO L277 CegarLoopResult]: At program point L8910(line 8910) the Hoare annotation is: true [2020-10-20 03:20:47,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 03:20:47,797 INFO L274 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-10-20 03:20:47,797 INFO L274 CegarLoopResult]: For program point L223-2(line 223) no Hoare annotation was computed. [2020-10-20 03:20:47,798 INFO L274 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-10-20 03:20:47,798 INFO L274 CegarLoopResult]: For program point L8894(lines 8894 8909) no Hoare annotation was computed. [2020-10-20 03:20:47,798 INFO L274 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-10-20 03:20:47,798 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,798 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,798 INFO L274 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L208-2(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L208-3(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L208-4(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L208-5(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L208-6(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L208-7(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L270 CegarLoopResult]: At program point L6947(lines 6943 6948) the Hoare annotation is: (and (= |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 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L7130(lines 7130 7134) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-10-20 03:20:47,799 INFO L274 CegarLoopResult]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-10-20 03:20:47,800 INFO L270 CegarLoopResult]: At program point L261(line 261) the Hoare annotation is: (and (= |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 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) [2020-10-20 03:20:47,800 INFO L274 CegarLoopResult]: For program point L7248-1(line 7248) no Hoare annotation was computed. [2020-10-20 03:20:47,801 INFO L274 CegarLoopResult]: For program point L7248(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,801 INFO L274 CegarLoopResult]: For program point L7248-6(lines 7248 7249) no Hoare annotation was computed. [2020-10-20 03:20:47,801 INFO L274 CegarLoopResult]: For program point L7248-4(lines 7248 7249) no Hoare annotation was computed. [2020-10-20 03:20:47,801 INFO L274 CegarLoopResult]: For program point L7248-3(line 7248) no Hoare annotation was computed. [2020-10-20 03:20:47,801 INFO L270 CegarLoopResult]: At program point L6951(lines 6950 6952) the Hoare annotation is: (and (= |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 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) [2020-10-20 03:20:47,801 INFO L274 CegarLoopResult]: For program point L7248-9(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,801 INFO L274 CegarLoopResult]: For program point L7248-7(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,801 INFO L274 CegarLoopResult]: For program point L7248-14(line 7248) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L274 CegarLoopResult]: For program point L7248-13(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L270 CegarLoopResult]: At program point L7248-12(lines 7246 7252) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.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)) (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.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 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0)) (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) 4) 0)) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) [2020-10-20 03:20:47,802 INFO L274 CegarLoopResult]: For program point L7248-11(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L274 CegarLoopResult]: For program point L7248-17(lines 7248 7249) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L274 CegarLoopResult]: For program point L7248-16(line 7248) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L274 CegarLoopResult]: For program point L7248-22(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L274 CegarLoopResult]: For program point L7248-20(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L274 CegarLoopResult]: For program point L7248-19(lines 7248 7249) no Hoare annotation was computed. [2020-10-20 03:20:47,802 INFO L270 CegarLoopResult]: At program point L7248-25(lines 7246 7252) the Hoare annotation is: (let ((.cse0 (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))) (.cse1 (= ULTIMATE.start_aws_byte_buf_is_valid_~buf.offset 0)) (.cse2 (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base)) (.cse3 (not (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base| 0))) (.cse4 (= ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 0)) (.cse5 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) 4) 0))) (.cse6 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)))) (or (and (= |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= 0 |ULTIMATE.start_aws_byte_buf_is_valid_#res|) .cse6 (<= |ULTIMATE.start_aws_byte_buf_is_valid_#res| 0)) (and (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.offset |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.offset|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.offset 0) (= ULTIMATE.start_aws_byte_buf_clean_up_~buf.base |ULTIMATE.start_aws_byte_buf_clean_up_harness_~#buf~3.base|) .cse6))) [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point L7248-24(lines 7248 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point L7251(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point L7251-4(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point L7251-3(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point L7251-2(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,803 INFO L274 CegarLoopResult]: For program point L7251-9(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,804 INFO L274 CegarLoopResult]: For program point L7251-8(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,804 INFO L274 CegarLoopResult]: For program point L7251-6(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,804 INFO L274 CegarLoopResult]: For program point L7251-13(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,804 INFO L274 CegarLoopResult]: For program point L7251-12(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,804 INFO L274 CegarLoopResult]: For program point L7251-11(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,804 INFO L274 CegarLoopResult]: For program point L7251-17(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,805 INFO L274 CegarLoopResult]: For program point L7251-15(line 7251) no Hoare annotation was computed. [2020-10-20 03:20:47,805 INFO L274 CegarLoopResult]: For program point L6658(lines 6658 6663) no Hoare annotation was computed. [2020-10-20 03:20:47,821 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,825 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,828 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,832 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:47,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:47,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:20:47 BoogieIcfgContainer [2020-10-20 03:20:47,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:20:47,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:20:47,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:20:47,840 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:20:47,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:20:16" (3/4) ... [2020-10-20 03:20:47,844 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:20:47,868 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2020-10-20 03:20:47,870 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2020-10-20 03:20:47,872 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-10-20 03:20:47,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-20 03:20:47,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-20 03:20:47,876 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 03:20:47,878 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 03:20:47,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:20:47,918 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((buf == 0 && buf == buf) && !(buf == 0)) && buf == 0) && !(\result == 0) [2020-10-20 03:20:47,919 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && buf == 0) && buf == buf) && !(buf == 0)) && buf == 0) && !(#memory_$Pointer$[buf][4] == 0)) && !(\result == 0) [2020-10-20 03:20:47,920 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && buf == 0) && buf == buf) && !(buf == 0)) && buf == 0) && !(#memory_$Pointer$[buf][4] == 0)) && 0 <= \result) && !(\result == 0)) && \result <= 0) || (((((((((buf == buf && !(#memory_$Pointer$[buf][buf + 4] == 0)) && buf == 0) && buf == buf) && !(buf == 0)) && buf == 0) && !(#memory_$Pointer$[buf][4] == 0)) && buf == 0) && buf == buf) && !(\result == 0)) [2020-10-20 03:20:48,813 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:20:48,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:20:48,815 INFO L168 Benchmark]: Toolchain (without parser) took 45571.80 ms. Allocated memory was 34.6 MB in the beginning and 372.2 MB in the end (delta: 337.6 MB). Free memory was 7.5 MB in the beginning and 234.6 MB in the end (delta: -227.2 MB). Peak memory consumption was 336.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:20:48,815 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 33.0 MB. Free memory was 10.5 MB in the beginning and 10.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 03:20:48,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4498.08 ms. Allocated memory was 34.6 MB in the beginning and 105.4 MB in the end (delta: 70.8 MB). Free memory was 6.6 MB in the beginning and 30.3 MB in the end (delta: -23.7 MB). Peak memory consumption was 67.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:20:48,816 INFO L168 Benchmark]: Boogie Procedure Inliner took 243.34 ms. Allocated memory was 105.4 MB in the beginning and 106.4 MB in the end (delta: 1.0 MB). Free memory was 30.3 MB in the beginning and 59.2 MB in the end (delta: -28.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:20:48,817 INFO L168 Benchmark]: Boogie Preprocessor took 163.90 ms. Allocated memory is still 106.4 MB. Free memory was 59.2 MB in the beginning and 50.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:20:48,817 INFO L168 Benchmark]: RCFGBuilder took 8637.62 ms. Allocated memory was 106.4 MB in the beginning and 188.2 MB in the end (delta: 81.8 MB). Free memory was 50.9 MB in the beginning and 74.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 135.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:20:48,818 INFO L168 Benchmark]: TraceAbstraction took 31041.66 ms. Allocated memory was 188.2 MB in the beginning and 341.3 MB in the end (delta: 153.1 MB). Free memory was 71.8 MB in the beginning and 50.7 MB in the end (delta: 21.1 MB). Peak memory consumption was 174.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:20:48,818 INFO L168 Benchmark]: Witness Printer took 974.14 ms. Allocated memory was 341.3 MB in the beginning and 372.2 MB in the end (delta: 30.9 MB). Free memory was 50.7 MB in the beginning and 234.6 MB in the end (delta: -183.9 MB). Peak memory consumption was 72.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:20:48,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 33.0 MB. Free memory was 10.5 MB in the beginning and 10.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 4498.08 ms. Allocated memory was 34.6 MB in the beginning and 105.4 MB in the end (delta: 70.8 MB). Free memory was 6.6 MB in the beginning and 30.3 MB in the end (delta: -23.7 MB). Peak memory consumption was 67.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 243.34 ms. Allocated memory was 105.4 MB in the beginning and 106.4 MB in the end (delta: 1.0 MB). Free memory was 30.3 MB in the beginning and 59.2 MB in the end (delta: -28.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 163.90 ms. Allocated memory is still 106.4 MB. Free memory was 59.2 MB in the beginning and 50.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 8637.62 ms. Allocated memory was 106.4 MB in the beginning and 188.2 MB in the end (delta: 81.8 MB). Free memory was 50.9 MB in the beginning and 74.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 135.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 31041.66 ms. Allocated memory was 188.2 MB in the beginning and 341.3 MB in the end (delta: 153.1 MB). Free memory was 71.8 MB in the beginning and 50.7 MB in the end (delta: 21.1 MB). Peak memory consumption was 174.2 MB. Max. memory is 14.3 GB. * Witness Printer took 974.14 ms. Allocated memory was 341.3 MB in the beginning and 372.2 MB in the end (delta: 30.9 MB). Free memory was 50.7 MB in the beginning and 234.6 MB in the end (delta: -183.9 MB). Peak memory consumption was 72.5 MB. Max. memory is 14.3 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: 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: 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: 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: 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: 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 208]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 208]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 208]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 208]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: ((buf == 0 && buf == buf) && !(buf == 0)) && buf == 0 - InvariantResult [Line: 7246]: Loop Invariant [2020-10-20 03:20:48,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,834 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,836 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,836 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && buf == 0) && buf == buf) && !(buf == 0)) && buf == 0) && !(#memory_$Pointer$[buf][4] == 0)) && !(\result == 0) - InvariantResult [Line: 6943]: Loop Invariant Derived loop invariant: (((buf == 0 && buf == buf) && !(buf == 0)) && buf == 0) && !(\result == 0) - InvariantResult [Line: 6950]: Loop Invariant Derived loop invariant: ((buf == 0 && buf == buf) && !(buf == 0)) && buf == 0 - InvariantResult [Line: 7246]: Loop Invariant [2020-10-20 03:20:48,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,840 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,843 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 03:20:48,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 03:20:48,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((((((buf == 0 && !(#memory_$Pointer$[buf][buf + 4] == 0)) && buf == 0) && buf == buf) && !(buf == 0)) && buf == 0) && !(#memory_$Pointer$[buf][4] == 0)) && 0 <= \result) && !(\result == 0)) && \result <= 0) || (((((((((buf == buf && !(#memory_$Pointer$[buf][buf + 4] == 0)) && buf == 0) && buf == buf) && !(buf == 0)) && buf == 0) && !(#memory_$Pointer$[buf][4] == 0)) && buf == 0) && buf == buf) && !(\result == 0)) - InvariantResult [Line: 8910]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.6s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 863 SDtfs, 918 SDslu, 1512 SDs, 0 SdLazy, 501 SolverSat, 54 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 103 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 177 HoareAnnotationTreeSize, 6 FomulaSimplifications, 172 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 14.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 512 NumberOfCodeBlocks, 512 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 500 ConstructedInterpolants, 0 QuantifiedInterpolants, 83622 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...