./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:24:21,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:24:21,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:24:21,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:24:21,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:24:21,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:24:21,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:24:21,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:24:21,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:24:21,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:24:21,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:24:21,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:24:21,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:24:21,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:24:21,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:24:21,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:24:21,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:24:21,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:24:21,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:24:21,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:24:21,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:24:21,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:24:21,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:24:21,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:24:21,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:24:21,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:24:21,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:24:21,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:24:21,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:24:21,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:24:21,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:24:21,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:24:21,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:24:21,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:24:21,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:24:21,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:24:21,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:24:21,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:24:21,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:24:21,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:24:21,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:24:21,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:24:21,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:24:21,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:24:21,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:24:21,359 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:24:21,359 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:24:21,359 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:24:21,359 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:24:21,360 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:24:21,360 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:24:21,360 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:24:21,360 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:24:21,361 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:24:21,361 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:24:21,361 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:24:21,361 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:24:21,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:24:21,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:24:21,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:24:21,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:24:21,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:24:21,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:24:21,364 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:24:21,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:24:21,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:24:21,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:24:21,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:24:21,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:24:21,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:24:21,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:24:21,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:24:21,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:24:21,366 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:24:21,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:24:21,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:24:21,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:24:21,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:24:21,367 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2021-11-03 04:24:21,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:24:21,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:24:21,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:24:21,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:24:21,738 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:24:21,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-11-03 04:24:21,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/2ecbea351/870a1570e4fe474c9fd06e95fb775f3a/FLAG48f64f332 [2021-11-03 04:24:22,946 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:24:22,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-11-03 04:24:23,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/2ecbea351/870a1570e4fe474c9fd06e95fb775f3a/FLAG48f64f332 [2021-11-03 04:24:23,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/2ecbea351/870a1570e4fe474c9fd06e95fb775f3a [2021-11-03 04:24:23,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:24:23,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:24:23,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:24:23,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:24:23,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:24:23,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:24:23" (1/1) ... [2021-11-03 04:24:23,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efce645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:23, skipping insertion in model container [2021-11-03 04:24:23,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:24:23" (1/1) ... [2021-11-03 04:24:23,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:24:23,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:24:23,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-11-03 04:24:23,907 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-11-03 04:24:23,937 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:24:23,945 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:24:25,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:25,859 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:24:25,860 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:24:25,862 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:24:25,864 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:24:25,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:24:25,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:24:25,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:24:25,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:24:25,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:24:25,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:24:26,105 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:24:26,156 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:24:26,166 INFO L168 Benchmark]: Toolchain (without parser) took 2808.19 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 73.6 MB in the beginning and 99.4 MB in the end (delta: -25.9 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:24:26,167 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:24:26,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2803.28 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 73.3 MB in the beginning and 99.4 MB in the end (delta: -26.1 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:24:26,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2803.28 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 73.3 MB in the beginning and 99.4 MB in the end (delta: -26.1 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:24:28,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:24:28,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:24:28,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:24:28,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:24:28,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:24:28,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:24:28,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:24:28,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:24:28,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:24:28,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:24:28,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:24:29,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:24:29,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:24:29,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:24:29,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:24:29,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:24:29,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:24:29,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:24:29,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:24:29,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:24:29,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:24:29,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:24:29,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:24:29,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:24:29,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:24:29,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:24:29,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:24:29,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:24:29,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:24:29,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:24:29,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:24:29,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:24:29,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:24:29,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:24:29,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:24:29,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:24:29,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:24:29,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:24:29,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:24:29,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:24:29,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:24:29,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:24:29,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:24:29,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:24:29,125 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:24:29,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:24:29,125 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:24:29,126 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:24:29,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:24:29,126 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:24:29,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:24:29,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:24:29,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:24:29,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:24:29,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:24:29,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:24:29,130 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:24:29,130 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:24:29,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:24:29,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:24:29,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:24:29,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:24:29,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:24:29,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:24:29,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:24:29,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:24:29,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:24:29,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:24:29,133 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:24:29,133 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:24:29,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:24:29,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:24:29,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:24:29,134 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2021-11-03 04:24:29,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:24:29,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:24:29,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:24:29,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:24:29,563 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:24:29,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-11-03 04:24:29,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/40cf87f18/694f9c223d4043be85af56c1ae48ddc1/FLAG207a2fd1d [2021-11-03 04:24:30,750 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:24:30,751 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-11-03 04:24:30,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/40cf87f18/694f9c223d4043be85af56c1ae48ddc1/FLAG207a2fd1d [2021-11-03 04:24:31,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/data/40cf87f18/694f9c223d4043be85af56c1ae48ddc1 [2021-11-03 04:24:31,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:24:31,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:24:31,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:24:31,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:24:31,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:24:31,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:24:31" (1/1) ... [2021-11-03 04:24:31,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aeabb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:31, skipping insertion in model container [2021-11-03 04:24:31,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:24:31" (1/1) ... [2021-11-03 04:24:31,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:24:31,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:24:31,780 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-11-03 04:24:31,787 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-11-03 04:24:31,815 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:24:31,822 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:24:32,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:32,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:32,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:32,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:32,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:33,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:33,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:33,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:33,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:33,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:24:33,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:24:33,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:24:33,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:24:33,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:24:33,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:24:33,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:24:33,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:24:33,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:24:33,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:24:33,858 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:24:33,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:33,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:24:34,266 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:24:34,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:24:34,361 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-11-03 04:24:34,362 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-11-03 04:24:34,364 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:24:34,365 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:24:34,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,435 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,436 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,474 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:24:34,474 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:24:34,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:24:34,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:24:34,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:24:34,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:24:34,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:24:34,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:24:34,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:24:34,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:24:34,522 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:24:34,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:24:34,699 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:24:34,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2021-11-03 04:24:34,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2021-11-03 04:24:34,752 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:24:34,753 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:24:34,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,801 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,837 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:24:34,838 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:24:34,838 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:24:34,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:24:34,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:24:34,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:24:34,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:24:34,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:24:34,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:24:34,843 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:24:34,865 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:24:34,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:34,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:24:35,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:24:35,581 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:24:35,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35 WrapperNode [2021-11-03 04:24:35,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:24:35,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:24:35,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:24:35,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:24:35,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:35,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:35,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:24:35,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:24:35,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:24:35,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:24:35,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:35,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:35,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:35,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:36,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:36,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:36,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:36,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:24:36,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:24:36,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:24:36,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:24:36,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (1/1) ... [2021-11-03 04:24:36,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:24:36,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:24:36,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:24:36,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:24:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:24:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:24:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:24:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:24:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:24:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:24:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:24:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:24:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:24:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:24:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:24:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:24:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:24:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:24:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:24:53,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:24:53,304 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-11-03 04:24:53,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:24:53 BoogieIcfgContainer [2021-11-03 04:24:53,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:24:53,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:24:53,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:24:53,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:24:53,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:24:31" (1/3) ... [2021-11-03 04:24:53,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6334c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:24:53, skipping insertion in model container [2021-11-03 04:24:53,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:24:35" (2/3) ... [2021-11-03 04:24:53,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6334c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:24:53, skipping insertion in model container [2021-11-03 04:24:53,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:24:53" (3/3) ... [2021-11-03 04:24:53,316 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2021-11-03 04:24:53,322 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:24:53,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:24:53,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:24:53,408 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:24:53,408 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 04:24:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 04:24:53,451 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:24:53,452 INFO L513 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] [2021-11-03 04:24:53,452 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:24:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:24:53,467 INFO L85 PathProgramCache]: Analyzing trace with hash 254888643, now seen corresponding path program 1 times [2021-11-03 04:24:53,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:24:53,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884423560] [2021-11-03 04:24:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:53,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:24:53,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:24:53,509 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:24:53,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:24:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:24:59,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:24:59,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:24:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:24:59,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:24:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:24:59,565 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:24:59,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884423560] [2021-11-03 04:24:59,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884423560] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:24:59,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:24:59,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:24:59,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242164136] [2021-11-03 04:24:59,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:24:59,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:24:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:24:59,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:24:59,595 INFO L87 Difference]: Start difference. First operand has 59 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:59,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:24:59,620 INFO L93 Difference]: Finished difference Result 114 states and 153 transitions. [2021-11-03 04:24:59,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:24:59,621 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-03 04:24:59,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:24:59,631 INFO L225 Difference]: With dead ends: 114 [2021-11-03 04:24:59,632 INFO L226 Difference]: Without dead ends: 54 [2021-11-03 04:24:59,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:24:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-03 04:24:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-03 04:24:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 53 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:59,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-11-03 04:24:59,677 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 29 [2021-11-03 04:24:59,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:24:59,678 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-11-03 04:24:59,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:59,678 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-11-03 04:24:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 04:24:59,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:24:59,680 INFO L513 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] [2021-11-03 04:24:59,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:24:59,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:24:59,890 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:24:59,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:24:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1018052417, now seen corresponding path program 1 times [2021-11-03 04:24:59,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:24:59,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604696665] [2021-11-03 04:24:59,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:59,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:24:59,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:24:59,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:24:59,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:25:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:05,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:25:05,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:05,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:06,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:25:06,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604696665] [2021-11-03 04:25:06,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604696665] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:25:06,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:25:06,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-03 04:25:06,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618823011] [2021-11-03 04:25:06,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:25:06,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:25:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:25:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:25:06,211 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:25:07,649 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2021-11-03 04:25:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:25:07,650 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-03 04:25:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:25:07,654 INFO L225 Difference]: With dead ends: 115 [2021-11-03 04:25:07,654 INFO L226 Difference]: Without dead ends: 84 [2021-11-03 04:25:07,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:25:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-03 04:25:07,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 56. [2021-11-03 04:25:07,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.2) internal successors, (66), 55 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2021-11-03 04:25:07,682 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 29 [2021-11-03 04:25:07,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:25:07,683 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2021-11-03 04:25:07,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2021-11-03 04:25:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 04:25:07,686 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:07,686 INFO L513 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] [2021-11-03 04:25:07,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:25:07,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:25:07,899 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:25:07,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:07,900 INFO L85 PathProgramCache]: Analyzing trace with hash -261811261, now seen corresponding path program 1 times [2021-11-03 04:25:07,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:07,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325557602] [2021-11-03 04:25:07,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:07,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:07,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:07,914 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:07,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:25:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:13,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:25:13,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:13,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:13,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:13,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:25:13,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325557602] [2021-11-03 04:25:13,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325557602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:25:13,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:25:13,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:25:13,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320851335] [2021-11-03 04:25:13,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:25:13,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:25:13,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:25:13,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:25:13,593 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:13,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:25:13,626 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2021-11-03 04:25:13,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:25:13,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-03 04:25:13,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:25:13,629 INFO L225 Difference]: With dead ends: 92 [2021-11-03 04:25:13,629 INFO L226 Difference]: Without dead ends: 54 [2021-11-03 04:25:13,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:25:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-03 04:25:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-03 04:25:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-11-03 04:25:13,638 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 29 [2021-11-03 04:25:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:25:13,638 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-11-03 04:25:13,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-11-03 04:25:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:25:13,640 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:13,641 INFO L513 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] [2021-11-03 04:25:13,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:25:13,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:25:13,850 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:25:13,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash -720822122, now seen corresponding path program 1 times [2021-11-03 04:25:13,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:13,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987345264] [2021-11-03 04:25:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:13,857 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:13,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:13,858 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:13,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:25:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:19,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:25:19,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:19,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:19,936 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:25:19,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987345264] [2021-11-03 04:25:19,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987345264] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:25:19,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:25:19,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-03 04:25:19,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621338938] [2021-11-03 04:25:19,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:25:19,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:25:19,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:25:19,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:25:19,940 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:25:21,905 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2021-11-03 04:25:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:25:21,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:25:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:25:21,906 INFO L225 Difference]: With dead ends: 63 [2021-11-03 04:25:21,907 INFO L226 Difference]: Without dead ends: 54 [2021-11-03 04:25:21,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:25:21,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-03 04:25:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-03 04:25:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-11-03 04:25:21,915 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 34 [2021-11-03 04:25:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:25:21,916 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-11-03 04:25:21,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:25:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-11-03 04:25:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:25:21,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:21,919 INFO L513 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] [2021-11-03 04:25:21,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:25:22,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:25:22,130 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:25:22,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash 737232577, now seen corresponding path program 1 times [2021-11-03 04:25:22,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:22,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410750957] [2021-11-03 04:25:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:22,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:22,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:22,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:25:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:31,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 04:25:31,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:33,252 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:25:33,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-03 04:25:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:34,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:40,877 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:25:40,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 1 [2021-11-03 04:25:40,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:25:40,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:25:40,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410750957] [2021-11-03 04:25:40,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410750957] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:25:40,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:25:40,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 8] imperfect sequences [] total 18 [2021-11-03 04:25:40,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424444226] [2021-11-03 04:25:40,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-03 04:25:40,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:25:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-03 04:25:40,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=257, Unknown=2, NotChecked=0, Total=306 [2021-11-03 04:25:40,911 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:00,408 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2021-11-03 04:26:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:26:00,411 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-03 04:26:00,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:00,412 INFO L225 Difference]: With dead ends: 73 [2021-11-03 04:26:00,412 INFO L226 Difference]: Without dead ends: 55 [2021-11-03 04:26:00,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=192, Invalid=562, Unknown=2, NotChecked=0, Total=756 [2021-11-03 04:26:00,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-03 04:26:00,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-03 04:26:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-11-03 04:26:00,422 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 46 [2021-11-03 04:26:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:00,423 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-11-03 04:26:00,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-11-03 04:26:00,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 04:26:00,425 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:00,426 INFO L513 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] [2021-11-03 04:26:00,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:26:00,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:00,650 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:26:00,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:00,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1389242031, now seen corresponding path program 1 times [2021-11-03 04:26:00,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:00,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573204307] [2021-11-03 04:26:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:00,655 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:00,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:00,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:00,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b10d210-7de1-45ee-8513-bfef9057eb4b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:26:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:23,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-03 04:26:23,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:24,503 INFO L354 Elim1Store]: treesize reduction 160, result has 28.9 percent of original size [2021-11-03 04:26:24,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 51 treesize of output 79 [2021-11-03 04:26:29,014 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-11-03 04:26:29,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 128 treesize of output 58 [2021-11-03 04:26:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:26:29,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:32,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 482