./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3329d9e8531812864307b8906e40c8ad94f37ab5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:22:49,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:22:49,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:22:49,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:22:49,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:22:49,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:22:49,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:22:49,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:22:49,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:22:49,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:22:49,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:22:49,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:22:49,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:22:49,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:22:49,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:22:49,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:22:49,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:22:49,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:22:49,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:22:49,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:22:49,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:22:49,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:22:49,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:22:49,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:22:49,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:22:49,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:22:49,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:22:49,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:22:49,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:22:49,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:22:49,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:22:49,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:22:49,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:22:49,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:22:49,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:22:49,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:22:49,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:22:49,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:22:49,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:22:49,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:22:49,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:22:49,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-11-30 01:22:49,464 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:22:49,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:22:49,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:22:49,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:22:49,467 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:22:49,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:22:49,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:22:49,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:22:49,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:22:49,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:22:49,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:22:49,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:22:49,469 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:22:49,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:22:49,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:22:49,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:22:49,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:22:49,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:22:49,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:22:49,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:22:49,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:22:49,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:22:49,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:22:49,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:22:49,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:22:49,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:22:49,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:22:49,474 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3329d9e8531812864307b8906e40c8ad94f37ab5 [2020-11-30 01:22:49,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:22:49,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:22:49,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:22:49,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:22:49,893 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:22:49,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2020-11-30 01:22:49,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/data/37dc18e5c/4b5be8cb011e440897f7b0db1944805a/FLAG336fbda25 [2020-11-30 01:22:51,179 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:22:51,180 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2020-11-30 01:22:51,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/data/37dc18e5c/4b5be8cb011e440897f7b0db1944805a/FLAG336fbda25 [2020-11-30 01:22:51,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/data/37dc18e5c/4b5be8cb011e440897f7b0db1944805a [2020-11-30 01:22:51,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:22:51,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:22:51,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:22:51,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:22:51,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:22:51,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:22:51" (1/1) ... [2020-11-30 01:22:51,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eed1c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:51, skipping insertion in model container [2020-11-30 01:22:51,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:22:51" (1/1) ... [2020-11-30 01:22:51,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:22:51,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:22:52,035 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-11-30 01:22:52,041 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-11-30 01:22:53,253 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,267 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,268 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,269 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,270 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,298 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,300 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,307 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,308 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,310 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,312 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,313 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,314 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:53,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-11-30 01:22:53,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-11-30 01:22:53,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-11-30 01:22:53,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-11-30 01:22:53,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-11-30 01:22:53,933 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-11-30 01:22:53,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-11-30 01:22:53,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-11-30 01:22:53,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-11-30 01:22:53,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-11-30 01:22:54,200 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-11-30 01:22:54,335 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,336 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:22:54,490 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:22:54,510 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-11-30 01:22:54,511 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-11-30 01:22:54,613 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,619 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,620 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,621 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,622 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,632 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,637 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,639 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,644 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,646 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,647 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,649 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,649 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-11-30 01:22:54,723 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-11-30 01:22:54,724 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-11-30 01:22:54,725 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-11-30 01:22:54,727 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-11-30 01:22:54,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-11-30 01:22:54,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-11-30 01:22:54,729 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-11-30 01:22:54,731 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-11-30 01:22:54,731 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-11-30 01:22:54,780 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-11-30 01:22:54,851 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,851 WARN L1500 CHandler]: Possible shadowing of function index [2020-11-30 01:22:54,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:22:56,177 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:22:56,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56 WrapperNode [2020-11-30 01:22:56,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:22:56,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:22:56,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:22:56,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:22:56,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:22:56,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:22:56,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:22:56,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:22:56,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... [2020-11-30 01:22:56,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:22:56,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:22:56,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:22:56,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:22:56,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/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 [2020-11-30 01:22:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:22:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:22:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:22:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 01:22:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:22:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:22:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:22:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 01:22:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-30 01:22:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:22:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:23:08,543 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:23:08,544 INFO L298 CfgBuilder]: Removed 48 assume(true) statements. [2020-11-30 01:23:08,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:08 BoogieIcfgContainer [2020-11-30 01:23:08,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:23:08,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:23:08,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:23:08,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:23:08,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:22:51" (1/3) ... [2020-11-30 01:23:08,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d8e954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:23:08, skipping insertion in model container [2020-11-30 01:23:08,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:56" (2/3) ... [2020-11-30 01:23:08,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d8e954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:23:08, skipping insertion in model container [2020-11-30 01:23:08,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:08" (3/3) ... [2020-11-30 01:23:08,567 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2020-11-30 01:23:08,581 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:23:08,587 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-30 01:23:08,602 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 01:23:08,639 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:23:08,640 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:23:08,640 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:23:08,641 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:23:08,642 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:23:08,642 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:23:08,642 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:23:08,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:23:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-11-30 01:23:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 01:23:08,677 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:08,678 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] [2020-11-30 01:23:08,678 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:08,687 INFO L82 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2020-11-30 01:23:08,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:08,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255337872] [2020-11-30 01:23:08,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:09,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:09,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255337872] [2020-11-30 01:23:09,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:09,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:23:09,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606522451] [2020-11-30 01:23:09,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:23:09,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:09,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:23:09,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:23:09,740 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-11-30 01:23:09,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:09,768 INFO L93 Difference]: Finished difference Result 145 states and 195 transitions. [2020-11-30 01:23:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:23:09,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2020-11-30 01:23:09,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:09,781 INFO L225 Difference]: With dead ends: 145 [2020-11-30 01:23:09,781 INFO L226 Difference]: Without dead ends: 69 [2020-11-30 01:23:09,785 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 [2020-11-30 01:23:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-30 01:23:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-30 01:23:09,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-30 01:23:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2020-11-30 01:23:09,836 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2020-11-30 01:23:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:09,837 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2020-11-30 01:23:09,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:23:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2020-11-30 01:23:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 01:23:09,839 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:09,839 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] [2020-11-30 01:23:09,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:23:09,840 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:09,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:09,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2020-11-30 01:23:09,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:09,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947443450] [2020-11-30 01:23:09,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:10,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947443450] [2020-11-30 01:23:10,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:10,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:23:10,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184985236] [2020-11-30 01:23:10,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:10,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:10,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:10,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:10,305 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand 4 states. [2020-11-30 01:23:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:10,437 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2020-11-30 01:23:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:23:10,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-11-30 01:23:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:10,440 INFO L225 Difference]: With dead ends: 115 [2020-11-30 01:23:10,440 INFO L226 Difference]: Without dead ends: 69 [2020-11-30 01:23:10,442 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 [2020-11-30 01:23:10,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-30 01:23:10,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-30 01:23:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-30 01:23:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2020-11-30 01:23:10,456 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2020-11-30 01:23:10,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:10,457 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2020-11-30 01:23:10,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2020-11-30 01:23:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:23:10,460 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:10,461 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] [2020-11-30 01:23:10,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:23:10,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:10,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2020-11-30 01:23:10,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:10,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631549089] [2020-11-30 01:23:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:10,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631549089] [2020-11-30 01:23:10,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:10,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:23:10,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371655484] [2020-11-30 01:23:10,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:10,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:10,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:10,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:10,931 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand 4 states. [2020-11-30 01:23:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:11,085 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2020-11-30 01:23:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:23:11,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-11-30 01:23:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:11,091 INFO L225 Difference]: With dead ends: 168 [2020-11-30 01:23:11,091 INFO L226 Difference]: Without dead ends: 113 [2020-11-30 01:23:11,092 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 [2020-11-30 01:23:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-30 01:23:11,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2020-11-30 01:23:11,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-30 01:23:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2020-11-30 01:23:11,104 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2020-11-30 01:23:11,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:11,105 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2020-11-30 01:23:11,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:11,105 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2020-11-30 01:23:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:23:11,107 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:11,107 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] [2020-11-30 01:23:11,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:23:11,108 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:11,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2020-11-30 01:23:11,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:11,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549730215] [2020-11-30 01:23:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:11,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549730215] [2020-11-30 01:23:11,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:11,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:23:11,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627012346] [2020-11-30 01:23:11,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:11,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:11,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:11,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:11,463 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 4 states. [2020-11-30 01:23:11,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:11,609 INFO L93 Difference]: Finished difference Result 142 states and 173 transitions. [2020-11-30 01:23:11,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:23:11,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-11-30 01:23:11,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:11,611 INFO L225 Difference]: With dead ends: 142 [2020-11-30 01:23:11,612 INFO L226 Difference]: Without dead ends: 93 [2020-11-30 01:23:11,613 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 [2020-11-30 01:23:11,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-30 01:23:11,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2020-11-30 01:23:11,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-30 01:23:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2020-11-30 01:23:11,633 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2020-11-30 01:23:11,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:11,634 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2020-11-30 01:23:11,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:11,634 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2020-11-30 01:23:11,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:23:11,639 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:11,640 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] [2020-11-30 01:23:11,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:23:11,641 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:11,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:11,642 INFO L82 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2020-11-30 01:23:11,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:11,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626316152] [2020-11-30 01:23:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:15,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626316152] [2020-11-30 01:23:15,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:15,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 01:23:15,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395194245] [2020-11-30 01:23:15,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:23:15,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:15,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:23:15,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:23:15,403 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand 8 states. [2020-11-30 01:23:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:20,259 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2020-11-30 01:23:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:23:20,260 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-11-30 01:23:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:20,261 INFO L225 Difference]: With dead ends: 128 [2020-11-30 01:23:20,261 INFO L226 Difference]: Without dead ends: 77 [2020-11-30 01:23:20,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:23:20,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-30 01:23:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2020-11-30 01:23:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-30 01:23:20,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2020-11-30 01:23:20,280 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 37 [2020-11-30 01:23:20,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:20,281 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2020-11-30 01:23:20,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:23:20,281 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2020-11-30 01:23:20,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-30 01:23:20,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:20,287 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] [2020-11-30 01:23:20,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:23:20,287 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:20,288 INFO L82 PathProgramCache]: Analyzing trace with hash 70791141, now seen corresponding path program 1 times [2020-11-30 01:23:20,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:20,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282564181] [2020-11-30 01:23:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:21,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282564181] [2020-11-30 01:23:21,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:21,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:23:21,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784672070] [2020-11-30 01:23:21,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:23:21,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:21,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:23:21,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:23:21,101 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand 7 states. [2020-11-30 01:23:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:21,327 INFO L93 Difference]: Finished difference Result 128 states and 148 transitions. [2020-11-30 01:23:21,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:23:21,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-11-30 01:23:21,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:21,330 INFO L225 Difference]: With dead ends: 128 [2020-11-30 01:23:21,330 INFO L226 Difference]: Without dead ends: 73 [2020-11-30 01:23:21,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:23:21,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-30 01:23:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-30 01:23:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-30 01:23:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2020-11-30 01:23:21,346 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 45 [2020-11-30 01:23:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:21,349 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2020-11-30 01:23:21,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:23:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2020-11-30 01:23:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 01:23:21,356 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:21,356 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] [2020-11-30 01:23:21,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:23:21,357 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:21,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:21,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1141387003, now seen corresponding path program 1 times [2020-11-30 01:23:21,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:21,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181684691] [2020-11-30 01:23:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:22,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:22,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181684691] [2020-11-30 01:23:22,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:22,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:23:22,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902350737] [2020-11-30 01:23:22,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:23:22,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:22,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:23:22,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:23:22,116 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand 5 states. [2020-11-30 01:23:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:24,701 INFO L93 Difference]: Finished difference Result 176 states and 203 transitions. [2020-11-30 01:23:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:23:24,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-11-30 01:23:24,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:24,705 INFO L225 Difference]: With dead ends: 176 [2020-11-30 01:23:24,705 INFO L226 Difference]: Without dead ends: 122 [2020-11-30 01:23:24,706 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 [2020-11-30 01:23:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-11-30 01:23:24,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2020-11-30 01:23:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-30 01:23:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2020-11-30 01:23:24,733 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 49 [2020-11-30 01:23:24,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:24,734 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2020-11-30 01:23:24,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:23:24,734 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2020-11-30 01:23:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 01:23:24,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:24,736 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] [2020-11-30 01:23:24,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:23:24,736 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:24,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:24,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1565232391, now seen corresponding path program 1 times [2020-11-30 01:23:24,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:24,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260420303] [2020-11-30 01:23:24,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:25,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260420303] [2020-11-30 01:23:25,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:25,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:23:25,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872658211] [2020-11-30 01:23:25,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:25,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:25,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:25,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:25,055 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand 4 states. [2020-11-30 01:23:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:25,128 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2020-11-30 01:23:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:23:25,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-11-30 01:23:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:25,130 INFO L225 Difference]: With dead ends: 138 [2020-11-30 01:23:25,131 INFO L226 Difference]: Without dead ends: 69 [2020-11-30 01:23:25,131 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 [2020-11-30 01:23:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-30 01:23:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-30 01:23:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-30 01:23:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-11-30 01:23:25,147 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 49 [2020-11-30 01:23:25,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:25,151 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-11-30 01:23:25,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:25,151 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-11-30 01:23:25,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 01:23:25,154 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:25,154 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] [2020-11-30 01:23:25,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:23:25,155 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash -922532285, now seen corresponding path program 1 times [2020-11-30 01:23:25,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:25,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801020490] [2020-11-30 01:23:25,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:29,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801020490] [2020-11-30 01:23:29,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:29,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:23:29,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889867532] [2020-11-30 01:23:29,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:23:29,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:29,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:23:29,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:23:29,438 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-11-30 01:23:29,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:29,676 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2020-11-30 01:23:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:23:29,679 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-11-30 01:23:29,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:29,680 INFO L225 Difference]: With dead ends: 69 [2020-11-30 01:23:29,680 INFO L226 Difference]: Without dead ends: 67 [2020-11-30 01:23:29,680 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 [2020-11-30 01:23:29,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-30 01:23:29,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-30 01:23:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-30 01:23:29,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-11-30 01:23:29,686 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 49 [2020-11-30 01:23:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:29,686 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-11-30 01:23:29,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:23:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-11-30 01:23:29,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-30 01:23:29,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:29,696 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] [2020-11-30 01:23:29,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:23:29,697 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:29,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:29,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1790071355, now seen corresponding path program 1 times [2020-11-30 01:23:29,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:29,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898956162] [2020-11-30 01:23:29,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:33,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:33,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898956162] [2020-11-30 01:23:33,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:33,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:23:33,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485629670] [2020-11-30 01:23:33,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:23:33,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:33,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:23:33,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:23:33,106 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 6 states. [2020-11-30 01:23:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:33,278 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-11-30 01:23:33,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:23:33,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-11-30 01:23:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:33,280 INFO L225 Difference]: With dead ends: 67 [2020-11-30 01:23:33,280 INFO L226 Difference]: Without dead ends: 65 [2020-11-30 01:23:33,281 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 [2020-11-30 01:23:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-30 01:23:33,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-30 01:23:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-30 01:23:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2020-11-30 01:23:33,286 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 51 [2020-11-30 01:23:33,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:33,286 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2020-11-30 01:23:33,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:23:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2020-11-30 01:23:33,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-30 01:23:33,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:33,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:33,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:23:33,296 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:33,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:33,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2023505447, now seen corresponding path program 1 times [2020-11-30 01:23:33,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:33,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303323408] [2020-11-30 01:23:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:33,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303323408] [2020-11-30 01:23:33,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:33,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:23:33,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738827279] [2020-11-30 01:23:33,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:23:33,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:33,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:23:33,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:23:33,853 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 5 states. [2020-11-30 01:23:36,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:36,175 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-11-30 01:23:36,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:23:36,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-11-30 01:23:36,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:36,177 INFO L225 Difference]: With dead ends: 65 [2020-11-30 01:23:36,177 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 01:23:36,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:23:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 01:23:36,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-11-30 01:23:36,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-30 01:23:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2020-11-30 01:23:36,196 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 53 [2020-11-30 01:23:36,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:36,196 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2020-11-30 01:23:36,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:23:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2020-11-30 01:23:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-30 01:23:36,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:36,197 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] [2020-11-30 01:23:36,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 01:23:36,202 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:36,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:36,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1031258263, now seen corresponding path program 1 times [2020-11-30 01:23:36,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:36,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726389415] [2020-11-30 01:23:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:23:41,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726389415] [2020-11-30 01:23:41,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:41,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:23:41,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560013078] [2020-11-30 01:23:41,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:23:41,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:41,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:23:41,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:23:41,177 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 6 states. [2020-11-30 01:23:43,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:43,558 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-11-30 01:23:43,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:23:43,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-11-30 01:23:43,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:43,559 INFO L225 Difference]: With dead ends: 63 [2020-11-30 01:23:43,559 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:23:43,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:23:43,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:23:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:23:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:23:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:23:43,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-11-30 01:23:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:43,561 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:23:43,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:23:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:23:43,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:23:43,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 01:23:43,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:23:43,852 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2020-11-30 01:23:43,876 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,876 INFO L274 CegarLoopResult]: For program point L7270(lines 7270 7283) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L6659(lines 6659 6661) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L6659-2(lines 6659 6661) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L7122(lines 7122 7135) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L7272-2(lines 7272 7274) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L7272(line 7272) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L7272-4(lines 7272 7274) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-11-30 01:23:43,877 INFO L274 CegarLoopResult]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L277 CegarLoopResult]: At program point L8910(line 8910) the Hoare annotation is: true [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point L223-2(line 223) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point L8894(lines 8894 8909) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,878 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L208-2(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L208-3(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L208-4(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L208-5(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L208-6(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L208-7(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,879 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))) [2020-11-30 01:23:43,879 INFO L274 CegarLoopResult]: For program point L7130(lines 7130 7134) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-11-30 01:23:43,880 INFO L274 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-11-30 01:23:43,881 INFO L274 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-11-30 01:23:43,881 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)) [2020-11-30 01:23:43,881 INFO L274 CegarLoopResult]: For program point L7248-1(line 7248) no Hoare annotation was computed. [2020-11-30 01:23:43,881 INFO L274 CegarLoopResult]: For program point L7248(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,881 INFO L274 CegarLoopResult]: For program point L7248-6(lines 7248 7249) no Hoare annotation was computed. [2020-11-30 01:23:43,881 INFO L274 CegarLoopResult]: For program point L7248-4(lines 7248 7249) no Hoare annotation was computed. [2020-11-30 01:23:43,881 INFO L274 CegarLoopResult]: For program point L7248-3(line 7248) no Hoare annotation was computed. [2020-11-30 01:23:43,881 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)) [2020-11-30 01:23:43,882 INFO L274 CegarLoopResult]: For program point L7248-9(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,882 INFO L274 CegarLoopResult]: For program point L7248-7(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,882 INFO L274 CegarLoopResult]: For program point L7248-14(line 7248) no Hoare annotation was computed. [2020-11-30 01:23:43,882 INFO L274 CegarLoopResult]: For program point L7248-13(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,882 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))) [2020-11-30 01:23:43,882 INFO L274 CegarLoopResult]: For program point L7248-11(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,887 INFO L274 CegarLoopResult]: For program point L7248-17(lines 7248 7249) no Hoare annotation was computed. [2020-11-30 01:23:43,887 INFO L274 CegarLoopResult]: For program point L7248-16(line 7248) no Hoare annotation was computed. [2020-11-30 01:23:43,887 INFO L274 CegarLoopResult]: For program point L7248-22(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,887 INFO L274 CegarLoopResult]: For program point L7248-20(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,887 INFO L274 CegarLoopResult]: For program point L7248-19(lines 7248 7249) no Hoare annotation was computed. [2020-11-30 01:23:43,888 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))) [2020-11-30 01:23:43,888 INFO L274 CegarLoopResult]: For program point L7248-24(lines 7248 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,888 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:23:43,888 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 208) no Hoare annotation was computed. [2020-11-30 01:23:43,889 INFO L274 CegarLoopResult]: For program point L7251(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,889 INFO L274 CegarLoopResult]: For program point L7251-4(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,889 INFO L274 CegarLoopResult]: For program point L7251-3(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,889 INFO L274 CegarLoopResult]: For program point L7251-2(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,889 INFO L274 CegarLoopResult]: For program point L7251-9(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,889 INFO L274 CegarLoopResult]: For program point L7251-8(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,890 INFO L274 CegarLoopResult]: For program point L7251-6(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,890 INFO L274 CegarLoopResult]: For program point L7251-13(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,891 INFO L274 CegarLoopResult]: For program point L7251-12(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,891 INFO L274 CegarLoopResult]: For program point L7251-11(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,891 INFO L274 CegarLoopResult]: For program point L7251-17(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,891 INFO L274 CegarLoopResult]: For program point L7251-15(line 7251) no Hoare annotation was computed. [2020-11-30 01:23:43,891 INFO L274 CegarLoopResult]: For program point L6658(lines 6658 6663) no Hoare annotation was computed. [2020-11-30 01:23:43,914 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,936 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:43,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:43,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:23:43 BoogieIcfgContainer [2020-11-30 01:23:43,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:23:43,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:23:43,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:23:43,953 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:23:43,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:08" (3/4) ... [2020-11-30 01:23:43,958 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:23:44,001 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2020-11-30 01:23:44,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2020-11-30 01:23:44,007 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-11-30 01:23:44,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 01:23:44,011 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:23:44,013 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:23:44,016 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:23:44,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:23:44,070 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((buf == 0 && buf == buf) && !(buf == 0)) && buf == 0) && !(\result == 0) [2020-11-30 01:23:44,071 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) [2020-11-30 01:23:44,072 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)) [2020-11-30 01:23:45,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7984dcfc-8e1d-4bcd-a367-b01752e6db38/bin/uautomizer/witness.graphml [2020-11-30 01:23:45,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:23:45,155 INFO L168 Benchmark]: Toolchain (without parser) took 53685.93 ms. Allocated memory was 125.8 MB in the beginning and 977.3 MB in the end (delta: 851.4 MB). Free memory was 85.5 MB in the beginning and 509.5 MB in the end (delta: -424.1 MB). Peak memory consumption was 621.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:45,156 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 83.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:23:45,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4707.15 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 85.2 MB in the beginning and 56.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 78.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:45,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 374.92 ms. Allocated memory is still 151.0 MB. Free memory was 56.8 MB in the beginning and 45.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:45,158 INFO L168 Benchmark]: Boogie Preprocessor took 214.80 ms. Allocated memory is still 151.0 MB. Free memory was 45.3 MB in the beginning and 96.2 MB in the end (delta: -50.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:45,158 INFO L168 Benchmark]: RCFGBuilder took 11773.77 ms. Allocated memory was 151.0 MB in the beginning and 482.3 MB in the end (delta: 331.4 MB). Free memory was 96.2 MB in the beginning and 302.1 MB in the end (delta: -205.9 MB). Peak memory consumption was 289.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:45,159 INFO L168 Benchmark]: TraceAbstraction took 35400.48 ms. Allocated memory was 482.3 MB in the beginning and 977.3 MB in the end (delta: 494.9 MB). Free memory was 302.1 MB in the beginning and 756.0 MB in the end (delta: -453.9 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:45,159 INFO L168 Benchmark]: Witness Printer took 1200.84 ms. Allocated memory is still 977.3 MB. Free memory was 756.0 MB in the beginning and 509.5 MB in the end (delta: 246.4 MB). Peak memory consumption was 440.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:45,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 83.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4707.15 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 85.2 MB in the beginning and 56.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 78.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 374.92 ms. Allocated memory is still 151.0 MB. Free memory was 56.8 MB in the beginning and 45.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 214.80 ms. Allocated memory is still 151.0 MB. Free memory was 45.3 MB in the beginning and 96.2 MB in the end (delta: -50.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11773.77 ms. Allocated memory was 151.0 MB in the beginning and 482.3 MB in the end (delta: 331.4 MB). Free memory was 96.2 MB in the beginning and 302.1 MB in the end (delta: -205.9 MB). Peak memory consumption was 289.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35400.48 ms. Allocated memory was 482.3 MB in the beginning and 977.3 MB in the end (delta: 494.9 MB). Free memory was 302.1 MB in the beginning and 756.0 MB in the end (delta: -453.9 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * Witness Printer took 1200.84 ms. Allocated memory is still 977.3 MB. Free memory was 756.0 MB in the beginning and 509.5 MB in the end (delta: 246.4 MB). Peak memory consumption was 440.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: 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 [2020-11-30 01:23:45,174 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,175 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,177 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 [2020-11-30 01:23:45,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-30 01:23:45,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-30 01:23:45,185 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: 34.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 863 SDtfs, 918 SDslu, 1512 SDs, 0 SdLazy, 501 SolverSat, 54 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s 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, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 16.7s SatisfiabilityAnalysisTime, 3.6s 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...