./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG --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 e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 ............................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG --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 e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:57:06,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:57:06,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:57:06,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:57:06,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:57:06,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:57:06,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:57:06,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:57:06,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:57:06,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:57:06,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:57:06,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:57:06,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:57:06,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:57:06,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:57:06,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:57:06,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:57:06,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:57:06,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:57:06,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:57:06,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:57:06,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:57:06,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:57:06,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:57:06,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:57:06,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:57:06,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:57:06,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:57:06,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:57:06,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:57:06,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:57:06,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:57:06,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:57:06,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:57:06,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:57:06,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:57:06,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:57:06,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:57:06,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:57:06,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:57:06,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:57:06,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-10-29 04:57:06,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:57:06,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:57:06,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:57:06,724 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:57:06,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:57:06,724 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:57:06,725 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:57:06,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:57:06,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:57:06,725 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:57:06,727 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:57:06,727 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:57:06,727 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:57:06,728 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:57:06,728 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:57:06,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:57:06,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:57:06,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:57:06,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:57:06,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:57:06,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:57:06,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:57:06,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:57:06,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:57:06,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:57:06,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:57:06,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:57:06,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:57:06,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:57:06,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:57:06,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:57:06,735 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:57:06,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:57:06,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:57:06,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:57:06,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:57:06,736 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-10-29 04:57:07,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:57:07,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:57:07,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:57:07,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:57:07,092 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:57:07,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-29 04:57:07,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/6a325d5a3/71c85e724fb94885a9b2e17d63b08a5e/FLAGf6579ac01 [2021-10-29 04:57:08,172 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:57:08,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-29 04:57:08,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/6a325d5a3/71c85e724fb94885a9b2e17d63b08a5e/FLAGf6579ac01 [2021-10-29 04:57:08,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/6a325d5a3/71c85e724fb94885a9b2e17d63b08a5e [2021-10-29 04:57:08,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:57:08,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:57:08,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:57:08,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:57:08,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:57:08,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:57:08" (1/1) ... [2021-10-29 04:57:08,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2445f384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:08, skipping insertion in model container [2021-10-29 04:57:08,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:57:08" (1/1) ... [2021-10-29 04:57:08,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:57:08,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:57:09,086 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-29 04:57:09,094 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-29 04:57:09,123 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:57:09,130 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:57:10,345 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,346 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,346 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,347 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,348 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,369 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,369 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,372 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:10,372 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:11,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:57:11,031 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:57:11,032 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:57:11,033 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:57:11,035 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:57:11,036 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:57:11,037 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:57:11,038 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:57:11,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:57:11,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:57:11,309 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-29 04:57:11,327 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:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1038) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:946) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1365) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) 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:1436) 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:3224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-29 04:57:11,334 INFO L168 Benchmark]: Toolchain (without parser) took 2716.63 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 60.7 MB in the beginning and 92.8 MB in the end (delta: -32.1 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:11,335 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 69.6 MB in the beginning and 69.6 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:57:11,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2714.18 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 60.5 MB in the beginning and 92.8 MB in the end (delta: -32.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:11,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 69.6 MB in the beginning and 69.6 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2714.18 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 60.5 MB in the beginning and 92.8 MB in the end (delta: -32.4 MB). Peak memory consumption was 40.9 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:193) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:57:13,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:57:13,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:57:13,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:57:13,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:57:13,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:57:13,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:57:13,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:57:13,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:57:13,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:57:13,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:57:13,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:57:13,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:57:13,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:57:13,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:57:13,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:57:13,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:57:13,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:57:13,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:57:13,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:57:13,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:57:13,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:57:13,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:57:13,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:57:13,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:57:13,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:57:13,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:57:13,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:57:13,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:57:13,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:57:13,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:57:13,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:57:13,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:57:13,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:57:13,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:57:13,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:57:13,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:57:13,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:57:13,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:57:13,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:57:13,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:57:13,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-10-29 04:57:13,944 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:57:13,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:57:13,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:57:13,946 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:57:13,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:57:13,947 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:57:13,947 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:57:13,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:57:13,947 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:57:13,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:57:13,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:57:13,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:57:13,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:57:13,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:57:13,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:57:13,951 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:57:13,952 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:57:13,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:57:13,952 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:57:13,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:57:13,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:57:13,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:57:13,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:57:13,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:57:13,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:57:13,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:57:13,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:57:13,954 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:57:13,955 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:57:13,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:57:13,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:57:13,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:57:13,956 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-10-29 04:57:14,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:57:14,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:57:14,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:57:14,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:57:14,407 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:57:14,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-29 04:57:14,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/1f29b2c75/06118fabbd84462fbba69fecbbb2f0fc/FLAGe1e4e00ae [2021-10-29 04:57:15,462 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:57:15,462 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-29 04:57:15,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/1f29b2c75/06118fabbd84462fbba69fecbbb2f0fc/FLAGe1e4e00ae [2021-10-29 04:57:15,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/data/1f29b2c75/06118fabbd84462fbba69fecbbb2f0fc [2021-10-29 04:57:15,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:57:15,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:57:15,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:57:15,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:57:15,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:57:15,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:57:15" (1/1) ... [2021-10-29 04:57:15,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4170d2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:15, skipping insertion in model container [2021-10-29 04:57:15,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:57:15" (1/1) ... [2021-10-29 04:57:15,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:57:16,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:57:16,507 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-29 04:57:16,515 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-29 04:57:16,546 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:57:16,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:57:18,082 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,086 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,087 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,089 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,091 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,126 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,127 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,140 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,141 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:18,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:57:18,844 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:57:18,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:57:18,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:57:18,851 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:57:18,852 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:57:18,853 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:57:18,855 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:57:18,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:57:18,857 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:57:19,139 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-29 04:57:19,228 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,228 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,566 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,566 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,589 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,590 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,597 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,597 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,612 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,613 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,613 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,614 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,614 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,615 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,615 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:57:19,734 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:57:19,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:57:19,814 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-29 04:57:19,815 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-29 04:57:19,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:57:19,817 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:57:19,847 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,848 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,848 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,849 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,849 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,856 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,856 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,857 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,858 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:57:19,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:57:19,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:57:19,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:57:19,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:57:19,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:57:19,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:57:19,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:57:19,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:57:19,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:57:19,917 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-29 04:57:19,998 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:19,999 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,087 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,088 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,096 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,097 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,100 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,101 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,109 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,110 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,110 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,111 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,111 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,112 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,112 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:57:20,170 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:57:20,183 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-29 04:57:20,219 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_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-29 04:57:20,221 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:57:20,221 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:57:20,249 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,249 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,249 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,250 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,250 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,255 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,256 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,257 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,258 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:57:20,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:57:20,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:57:20,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:57:20,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:57:20,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:57:20,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:57:20,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:57:20,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:57:20,304 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:57:20,326 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-29 04:57:20,376 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,376 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,476 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,477 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,486 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,487 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,489 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,490 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,499 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,500 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,501 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,501 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,501 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,502 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,502 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:57:20,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:57:21,044 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:57:21,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21 WrapperNode [2021-10-29 04:57:21,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:57:21,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:57:21,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:57:21,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:57:21,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:57:21,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:57:21,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:57:21,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:57:21,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:57:21,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:57:21,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:57:21,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:57:21,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (1/1) ... [2021-10-29 04:57:21,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:57:21,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:57:21,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:57:21,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:57:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:57:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:57:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:57:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:57:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:57:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-29 04:57:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:57:22,424 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2021-10-29 04:57:22,432 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:57:22,432 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-10-29 04:57:22,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:57:22 BoogieIcfgContainer [2021-10-29 04:57:22,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:57:22,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:57:22,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:57:22,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:57:22,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:57:15" (1/3) ... [2021-10-29 04:57:22,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff6c7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:57:22, skipping insertion in model container [2021-10-29 04:57:22,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:21" (2/3) ... [2021-10-29 04:57:22,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff6c7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:57:22, skipping insertion in model container [2021-10-29 04:57:22,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:57:22" (3/3) ... [2021-10-29 04:57:22,443 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_c_str_eq_harness.i [2021-10-29 04:57:22,449 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:57:22,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:57:22,499 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:57:22,505 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 [2021-10-29 04:57:22,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:57:22,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 51 states have (on average 1.392156862745098) internal successors, (71), 54 states have internal predecessors, (71), 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) [2021-10-29 04:57:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 04:57:22,529 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:22,530 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] [2021-10-29 04:57:22,531 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:22,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1599795525, now seen corresponding path program 1 times [2021-10-29 04:57:22,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:57:22,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332426497] [2021-10-29 04:57:22,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:22,561 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:57:22,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:57:22,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:57:22,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:57:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:57:22,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:57:22,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:57:23,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:23,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:57:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:23,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:57:23,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332426497] [2021-10-29 04:57:23,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332426497] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:57:23,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:57:23,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:57:23,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396767151] [2021-10-29 04:57:23,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:57:23,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:57:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:57:23,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:57:23,194 INFO L87 Difference]: Start difference. First operand has 55 states, 51 states have (on average 1.392156862745098) internal successors, (71), 54 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:23,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:57:23,214 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2021-10-29 04:57:23,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:57:23,215 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-29 04:57:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:57:23,224 INFO L225 Difference]: With dead ends: 106 [2021-10-29 04:57:23,224 INFO L226 Difference]: Without dead ends: 50 [2021-10-29 04:57:23,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:57:23,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-29 04:57:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-29 04:57:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 49 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-10-29 04:57:23,264 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 25 [2021-10-29 04:57:23,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:57:23,264 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-10-29 04:57:23,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:23,265 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-10-29 04:57:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 04:57:23,266 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:23,267 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] [2021-10-29 04:57:23,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:57:23,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:57:23,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:23,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1892036256, now seen corresponding path program 1 times [2021-10-29 04:57:23,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:57:23,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620101825] [2021-10-29 04:57:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:23,483 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:57:23,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:57:23,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:57:23,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:57:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:57:23,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:57:23,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:57:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:24,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:57:24,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:24,144 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:57:24,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620101825] [2021-10-29 04:57:24,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620101825] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:57:24,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:57:24,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 10 [2021-10-29 04:57:24,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958888522] [2021-10-29 04:57:24,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:57:24,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:57:24,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:57:24,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-29 04:57:24,160 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2021-10-29 04:57:24,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:57:24,586 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-10-29 04:57:24,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 04:57:24,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 26 [2021-10-29 04:57:24,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:57:24,592 INFO L225 Difference]: With dead ends: 67 [2021-10-29 04:57:24,592 INFO L226 Difference]: Without dead ends: 50 [2021-10-29 04:57:24,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-10-29 04:57:24,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-29 04:57:24,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-29 04:57:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 49 states have internal predecessors, (50), 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) [2021-10-29 04:57:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-10-29 04:57:24,613 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 26 [2021-10-29 04:57:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:57:24,614 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-10-29 04:57:24,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2021-10-29 04:57:24,615 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-10-29 04:57:24,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:57:24,616 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:24,617 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] [2021-10-29 04:57:24,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:57:24,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:57:24,840 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:24,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:24,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1472602148, now seen corresponding path program 1 times [2021-10-29 04:57:24,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:57:24,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6442785] [2021-10-29 04:57:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:24,843 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:57:24,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:57:24,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:57:24,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:57:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:57:25,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 04:57:25,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:57:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:25,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:57:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:25,608 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:57:25,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6442785] [2021-10-29 04:57:25,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6442785] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:57:25,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:57:25,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 13 [2021-10-29 04:57:25,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494055099] [2021-10-29 04:57:25,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 04:57:25,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:57:25,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 04:57:25,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:57:25,612 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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) [2021-10-29 04:57:26,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:57:26,332 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-10-29 04:57:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 04:57:26,333 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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 27 [2021-10-29 04:57:26,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:57:26,334 INFO L225 Difference]: With dead ends: 50 [2021-10-29 04:57:26,334 INFO L226 Difference]: Without dead ends: 48 [2021-10-29 04:57:26,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2021-10-29 04:57:26,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-29 04:57:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-29 04:57:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 47 states have internal predecessors, (48), 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) [2021-10-29 04:57:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-10-29 04:57:26,344 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 27 [2021-10-29 04:57:26,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:57:26,345 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-10-29 04:57:26,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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) [2021-10-29 04:57:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-10-29 04:57:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:57:26,346 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:26,347 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] [2021-10-29 04:57:26,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:57:26,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:57:26,566 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:26,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash -788472151, now seen corresponding path program 1 times [2021-10-29 04:57:26,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:57:26,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927888603] [2021-10-29 04:57:26,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:26,569 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:57:26,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:57:26,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:57:26,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:57:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:57:27,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 04:57:27,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:57:27,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:27,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:57:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:27,763 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:57:27,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927888603] [2021-10-29 04:57:27,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927888603] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:57:27,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:57:27,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 12 [2021-10-29 04:57:27,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699588577] [2021-10-29 04:57:27,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 04:57:27,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:57:27,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 04:57:27,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:57:27,765 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:57:28,299 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-10-29 04:57:28,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-29 04:57:28,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-29 04:57:28,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:57:28,301 INFO L225 Difference]: With dead ends: 72 [2021-10-29 04:57:28,301 INFO L226 Difference]: Without dead ends: 70 [2021-10-29 04:57:28,302 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2021-10-29 04:57:28,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-29 04:57:28,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 46. [2021-10-29 04:57:28,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 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) [2021-10-29 04:57:28,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-10-29 04:57:28,317 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 31 [2021-10-29 04:57:28,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:57:28,318 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-10-29 04:57:28,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-10-29 04:57:28,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-29 04:57:28,320 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:28,320 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] [2021-10-29 04:57:28,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:57:28,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:57:28,536 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1439752775, now seen corresponding path program 1 times [2021-10-29 04:57:28,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:57:28,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575905998] [2021-10-29 04:57:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:28,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:57:28,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:57:28,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:57:28,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:57:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:57:28,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 04:57:28,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:57:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:29,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:57:29,426 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-10-29 04:57:29,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2021-10-29 04:57:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:29,677 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:57:29,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575905998] [2021-10-29 04:57:29,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575905998] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:57:29,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:57:29,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-10-29 04:57:29,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416013276] [2021-10-29 04:57:29,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:57:29,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:57:29,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:57:29,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:57:29,680 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-10-29 04:57:29,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:57:29,830 INFO L93 Difference]: Finished difference Result 70 states and 69 transitions. [2021-10-29 04:57:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:57:29,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 36 [2021-10-29 04:57:29,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:57:29,842 INFO L225 Difference]: With dead ends: 70 [2021-10-29 04:57:29,842 INFO L226 Difference]: Without dead ends: 46 [2021-10-29 04:57:29,843 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:57:29,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-29 04:57:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-29 04:57:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0) internal successors, (45), 45 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-10-29 04:57:29,849 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 36 [2021-10-29 04:57:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:57:29,850 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-10-29 04:57:29,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-10-29 04:57:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-10-29 04:57:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-29 04:57:29,852 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:29,852 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] [2021-10-29 04:57:29,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:57:30,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:57:30,065 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:30,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:30,066 INFO L85 PathProgramCache]: Analyzing trace with hash -740992344, now seen corresponding path program 1 times [2021-10-29 04:57:30,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:57:30,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691471887] [2021-10-29 04:57:30,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:30,067 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:57:30,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:57:30,069 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:57:30,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:57:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:57:31,132 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:57:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:57:32,566 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:57:32,566 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:57:32,567 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:57:32,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:57:32,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:57:32,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:57:32,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:57:32,797 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-29 04:57:32,801 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:57:32,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:57:32 BoogieIcfgContainer [2021-10-29 04:57:32,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:57:32,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:57:32,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:57:32,926 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:57:32,926 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:57:22" (3/4) ... [2021-10-29 04:57:32,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:57:32,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:57:32,939 INFO L168 Benchmark]: Toolchain (without parser) took 17034.93 ms. Allocated memory was 75.5 MB in the beginning and 295.7 MB in the end (delta: 220.2 MB). Free memory was 45.4 MB in the beginning and 99.4 MB in the end (delta: -54.0 MB). Peak memory consumption was 166.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:32,940 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:57:32,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5139.44 ms. Allocated memory was 75.5 MB in the beginning and 182.5 MB in the end (delta: 107.0 MB). Free memory was 45.2 MB in the beginning and 93.1 MB in the end (delta: -47.9 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:32,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 236.30 ms. Allocated memory is still 182.5 MB. Free memory was 93.1 MB in the beginning and 80.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:32,941 INFO L168 Benchmark]: Boogie Preprocessor took 78.01 ms. Allocated memory is still 182.5 MB. Free memory was 80.5 MB in the beginning and 75.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:32,942 INFO L168 Benchmark]: RCFGBuilder took 1072.91 ms. Allocated memory is still 182.5 MB. Free memory was 75.4 MB in the beginning and 88.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:32,942 INFO L168 Benchmark]: TraceAbstraction took 10489.08 ms. Allocated memory was 182.5 MB in the beginning and 295.7 MB in the end (delta: 113.2 MB). Free memory was 87.3 MB in the beginning and 99.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:32,943 INFO L168 Benchmark]: Witness Printer took 13.23 ms. Allocated memory is still 295.7 MB. Free memory was 99.4 MB in the beginning and 99.4 MB in the end (delta: 2.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:32,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5139.44 ms. Allocated memory was 75.5 MB in the beginning and 182.5 MB in the end (delta: 107.0 MB). Free memory was 45.2 MB in the beginning and 93.1 MB in the end (delta: -47.9 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 236.30 ms. Allocated memory is still 182.5 MB. Free memory was 93.1 MB in the beginning and 80.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.01 ms. Allocated memory is still 182.5 MB. Free memory was 80.5 MB in the beginning and 75.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1072.91 ms. Allocated memory is still 182.5 MB. Free memory was 75.4 MB in the beginning and 88.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10489.08 ms. Allocated memory was 182.5 MB in the beginning and 295.7 MB in the end (delta: 113.2 MB). Free memory was 87.3 MB in the beginning and 99.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. * Witness Printer took 13.23 ms. Allocated memory is still 295.7 MB. Free memory was 99.4 MB in the beginning and 99.4 MB in the end (delta: 2.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of strcmp at line 10798, overapproximation of strlen at line 11324. Possible FailurePath: [L6879-L6884] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7634-L7646] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L6899] return malloc(size); [L6834] const char *str = bounded_malloc(cap); [L6838] str[cap - 1] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L6839] return str; VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L11318] const char *str1 = ensure_c_str_is_allocated(64); [L261] return __VERIFIER_nondet_bool(); [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L6899] return malloc(size); [L6834] const char *str = bounded_malloc(cap); [L6838] str[cap - 1] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L6839] return str; VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L11319] const char *str2 = nondet_bool() ? str1 : ensure_c_str_is_allocated(64); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L10797-L10798] _Bool rval = !strcmp(a, b); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L10799] return rval; VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L11321-L11322] _Bool rval = aws_hash_callback_c_str_eq(str1, str2); [L11323] COND TRUE \read(rval) [L11324] size_t len = strlen(str1); [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L7114-L7117] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L7119] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L7123] a[i] [L7123] b[i] [L223] COND TRUE !cond VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] [L223] reach_error() VAL [s_can_fail_allocator_static={8796093022203:0}, s_tolower_table={65543:0}] - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 588 SDslu, 650 SDs, 0 SdLazy, 266 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 1013 SizeOfPredicates, 58 NumberOfNonLiveVariables, 1933 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 04:57:33,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4eaf5b1-34e9-4bc9-893d-64286a2188cb/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...