./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_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.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_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.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_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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 [2021-10-28 23:58:10,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:58:10,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:58:11,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:58:11,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:58:11,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:58:11,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:58:11,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:58:11,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:58:11,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:58:11,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:58:11,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:58:11,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:58:11,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:58:11,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:58:11,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:58:11,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:58:11,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:58:11,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:58:11,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:58:11,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:58:11,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:58:11,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:58:11,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:58:11,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:58:11,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:58:11,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:58:11,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:58:11,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:58:11,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:58:11,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:58:11,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:58:11,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:58:11,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:58:11,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:58:11,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:58:11,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:58:11,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:58:11,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:58:11,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:58:11,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:58:11,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 23:58:11,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:58:11,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:58:11,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:58:11,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:58:11,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:58:11,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:58:11,113 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:58:11,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:58:11,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:58:11,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:58:11,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:58:11,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:58:11,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:58:11,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:58:11,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:58:11,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:58:11,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:58:11,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:58:11,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:58:11,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:58:11,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:58:11,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:58:11,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:58:11,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:58:11,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:58:11,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:58:11,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:58:11,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:58:11,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:58:11,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-10-28 23:58:11,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:58:11,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:58:11,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:58:11,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:58:11,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:58:11,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-28 23:58:11,532 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/bc1f15946/2a18652ae43044839bc1b2d824191eaa/FLAG58c87895b [2021-10-28 23:58:12,443 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:58:12,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-28 23:58:12,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/bc1f15946/2a18652ae43044839bc1b2d824191eaa/FLAG58c87895b [2021-10-28 23:58:12,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/bc1f15946/2a18652ae43044839bc1b2d824191eaa [2021-10-28 23:58:12,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:58:12,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:58:12,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:12,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:58:12,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:58:12,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:12" (1/1) ... [2021-10-28 23:58:12,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7830f356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:12, skipping insertion in model container [2021-10-28 23:58:12,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:12" (1/1) ... [2021-10-28 23:58:12,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:58:13,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:58:13,518 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-28 23:58:13,527 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-28 23:58:13,559 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:58:13,566 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:58:14,777 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,778 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,779 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,780 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,781 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,802 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,802 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,805 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:14,805 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:15,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:58:15,443 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:58:15,446 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:58:15,448 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:58:15,460 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:58:15,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:58:15,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:58:15,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:58:15,471 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:58:15,473 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:58:15,739 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:58:15,875 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:15,876 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,276 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,277 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,299 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,301 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,307 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,308 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,323 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,324 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,325 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,325 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,326 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,326 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,327 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:16,419 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:58:16,456 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-28 23:58:16,457 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-28 23:58:16,459 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:58:16,461 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:58:16,518 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,519 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,520 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,520 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,521 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,528 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,529 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,530 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,533 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,607 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:58:16,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:58:16,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:58:16,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:58:16,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:58:16,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:58:16,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:58:16,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:58:16,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:58:16,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:58:16,633 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:58:16,695 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,697 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,775 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,776 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,819 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,822 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,826 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,826 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,838 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,839 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,840 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,840 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,841 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,841 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,842 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:16,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:17,249 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:58:17,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17 WrapperNode [2021-10-28 23:58:17,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:17,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:17,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:58:17,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:58:17,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:17,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:58:17,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:58:17,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:58:17,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:58:17,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:58:17,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:58:17,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:58:17,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (1/1) ... [2021-10-28 23:58:17,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:58:17,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:17,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:17,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:58:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:58:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:58:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:58:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:58:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:58:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:58:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:58:18,546 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2021-10-28 23:58:18,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:58:18,553 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-10-28 23:58:18,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:18 BoogieIcfgContainer [2021-10-28 23:58:18,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:58:18,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:58:18,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:58:18,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:58:18,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:58:12" (1/3) ... [2021-10-28 23:58:18,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21eae62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:58:18, skipping insertion in model container [2021-10-28 23:58:18,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:17" (2/3) ... [2021-10-28 23:58:18,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21eae62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:58:18, skipping insertion in model container [2021-10-28 23:58:18,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:18" (3/3) ... [2021-10-28 23:58:18,563 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_c_str_eq_harness.i [2021-10-28 23:58:18,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:58:18,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:58:18,619 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:58:18,624 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=PETRI_NET, 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 [2021-10-28 23:58:18,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:58:18,639 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) [2021-10-28 23:58:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:58:18,645 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:18,645 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] [2021-10-28 23:58:18,646 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:18,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:18,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1599795525, now seen corresponding path program 1 times [2021-10-28 23:58:18,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:18,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389701764] [2021-10-28 23:58:18,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:18,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:19,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:19,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389701764] [2021-10-28 23:58:19,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389701764] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:19,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:19,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:58:19,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614830342] [2021-10-28 23:58:19,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:58:19,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:19,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:58:19,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:58:19,117 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) [2021-10-28 23:58:19,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:19,137 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2021-10-28 23:58:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:58:19,139 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 [2021-10-28 23:58:19,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:19,147 INFO L225 Difference]: With dead ends: 106 [2021-10-28 23:58:19,148 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:58:19,150 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:58:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:58:19,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-28 23:58:19,182 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) [2021-10-28 23:58:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-10-28 23:58:19,185 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 25 [2021-10-28 23:58:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:19,186 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-10-28 23:58:19,186 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) [2021-10-28 23:58:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-10-28 23:58:19,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:58:19,187 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:19,187 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] [2021-10-28 23:58:19,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:58:19,188 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:19,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:19,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1892036256, now seen corresponding path program 1 times [2021-10-28 23:58:19,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:19,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745542183] [2021-10-28 23:58:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:19,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:19,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:19,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745542183] [2021-10-28 23:58:19,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745542183] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:19,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:19,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:58:19,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346033159] [2021-10-28 23:58:19,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:58:19,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:19,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:58:19,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:58:19,497 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-10-28 23:58:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:19,697 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-10-28 23:58:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:58:19,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 [2021-10-28 23:58:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:19,699 INFO L225 Difference]: With dead ends: 67 [2021-10-28 23:58:19,700 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:58:19,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:58:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:58:19,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-28 23:58:19,709 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) [2021-10-28 23:58:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-10-28 23:58:19,710 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 26 [2021-10-28 23:58:19,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:19,711 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-10-28 23:58:19,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-10-28 23:58:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-10-28 23:58:19,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:58:19,713 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:19,713 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] [2021-10-28 23:58:19,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:58:19,714 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:19,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1472602148, now seen corresponding path program 1 times [2021-10-28 23:58:19,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:19,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429633088] [2021-10-28 23:58:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:19,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:20,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:20,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:20,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429633088] [2021-10-28 23:58:20,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429633088] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:20,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:20,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:58:20,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284135006] [2021-10-28 23:58:20,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:58:20,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:20,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:58:20,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:58:20,054 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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) [2021-10-28 23:58:20,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:20,378 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-10-28 23:58:20,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:58:20,379 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 [2021-10-28 23:58:20,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:20,380 INFO L225 Difference]: With dead ends: 50 [2021-10-28 23:58:20,380 INFO L226 Difference]: Without dead ends: 48 [2021-10-28 23:58:20,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:58:20,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-28 23:58:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-28 23:58:20,387 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) [2021-10-28 23:58:20,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-10-28 23:58:20,388 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 27 [2021-10-28 23:58:20,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:20,389 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-10-28 23:58:20,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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) [2021-10-28 23:58:20,389 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-10-28 23:58:20,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:58:20,390 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:20,391 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] [2021-10-28 23:58:20,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:58:20,391 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:20,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:20,392 INFO L85 PathProgramCache]: Analyzing trace with hash -788472151, now seen corresponding path program 1 times [2021-10-28 23:58:20,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:20,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400421620] [2021-10-28 23:58:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:20,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:20,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:20,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:20,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400421620] [2021-10-28 23:58:20,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400421620] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:20,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:20,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:58:20,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502362585] [2021-10-28 23:58:20,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:58:20,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:58:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:58:20,852 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 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) [2021-10-28 23:58:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:21,049 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-10-28 23:58:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:58:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 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 31 [2021-10-28 23:58:21,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:21,053 INFO L225 Difference]: With dead ends: 48 [2021-10-28 23:58:21,053 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:58:21,054 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:58:21,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:58:21,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-28 23:58:21,075 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) [2021-10-28 23:58:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-10-28 23:58:21,079 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 31 [2021-10-28 23:58:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:21,080 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-10-28 23:58:21,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 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) [2021-10-28 23:58:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-10-28 23:58:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:58:21,082 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:21,082 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] [2021-10-28 23:58:21,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:58:21,083 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1439752775, now seen corresponding path program 1 times [2021-10-28 23:58:21,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:21,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221441705] [2021-10-28 23:58:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:21,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:21,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:21,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221441705] [2021-10-28 23:58:21,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221441705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:21,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:21,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:58:21,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893860253] [2021-10-28 23:58:21,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:58:21,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:21,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:58:21,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:58:21,880 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-10-28 23:58:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:22,124 INFO L93 Difference]: Finished difference Result 70 states and 69 transitions. [2021-10-28 23:58:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:58:22,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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 [2021-10-28 23:58:22,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:22,126 INFO L225 Difference]: With dead ends: 70 [2021-10-28 23:58:22,126 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:58:22,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:58:22,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:58:22,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-28 23:58:22,134 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) [2021-10-28 23:58:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-10-28 23:58:22,136 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 36 [2021-10-28 23:58:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:22,138 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-10-28 23:58:22,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-10-28 23:58:22,139 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-10-28 23:58:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 23:58:22,142 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:22,143 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] [2021-10-28 23:58:22,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:58:22,143 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:22,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:22,144 INFO L85 PathProgramCache]: Analyzing trace with hash -740992344, now seen corresponding path program 1 times [2021-10-28 23:58:22,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:22,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340870792] [2021-10-28 23:58:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:22,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:22,579 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:23,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:23,034 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:58:23,035 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:58:23,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:58:23,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:58:23,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:58:23,042 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 23:58:23,046 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:58:23,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:58:23 BoogieIcfgContainer [2021-10-28 23:58:23,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:58:23,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:58:23,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:58:23,165 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:58:23,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:18" (3/4) ... [2021-10-28 23:58:23,169 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:58:23,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:58:23,177 INFO L168 Benchmark]: Toolchain (without parser) took 10251.18 ms. Allocated memory was 115.3 MB in the beginning and 213.9 MB in the end (delta: 98.6 MB). Free memory was 90.8 MB in the beginning and 138.1 MB in the end (delta: -47.3 MB). Peak memory consumption was 50.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:23,178 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:23,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4326.62 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 90.8 MB in the beginning and 105.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 89.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:23,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 265.52 ms. Allocated memory is still 165.7 MB. Free memory was 105.4 MB in the beginning and 94.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:23,182 INFO L168 Benchmark]: Boogie Preprocessor took 117.60 ms. Allocated memory is still 165.7 MB. Free memory was 94.1 MB in the beginning and 89.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:23,183 INFO L168 Benchmark]: RCFGBuilder took 919.44 ms. Allocated memory is still 165.7 MB. Free memory was 89.9 MB in the beginning and 99.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:23,183 INFO L168 Benchmark]: TraceAbstraction took 4607.42 ms. Allocated memory was 165.7 MB in the beginning and 213.9 MB in the end (delta: 48.2 MB). Free memory was 98.1 MB in the beginning and 139.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:23,184 INFO L168 Benchmark]: Witness Printer took 4.74 ms. Allocated memory is still 213.9 MB. Free memory was 139.2 MB in the beginning and 138.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:23,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4326.62 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 90.8 MB in the beginning and 105.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 89.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 265.52 ms. Allocated memory is still 165.7 MB. Free memory was 105.4 MB in the beginning and 94.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.60 ms. Allocated memory is still 165.7 MB. Free memory was 94.1 MB in the beginning and 89.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 919.44 ms. Allocated memory is still 165.7 MB. Free memory was 89.9 MB in the beginning and 99.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4607.42 ms. Allocated memory was 165.7 MB in the beginning and 213.9 MB in the end (delta: 48.2 MB). Free memory was 98.1 MB in the beginning and 139.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.74 ms. Allocated memory is still 213.9 MB. Free memory was 139.2 MB in the beginning and 138.1 MB in the end (delta: 1.0 MB). There was no memory consumed. 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={259:0}, s_tolower_table={261:0}] [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [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={259:0}, s_tolower_table={261:0}] [L6839] return str; VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [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={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [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={259:0}, s_tolower_table={261:0}] [L6839] return str; VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [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={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L10797-L10798] _Bool rval = !strcmp(a, b); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [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={259:0}, s_tolower_table={261:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L10799] return rval; VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [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={259:0}, s_tolower_table={261:0}] [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={259:0}, s_tolower_table={261:0}] [L7123] a[i] [L7123] b[i] [L223] COND TRUE !cond VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] [L223] reach_error() VAL [s_can_fail_allocator_static={259:0}, s_tolower_table={261:0}] - 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: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 197 SDtfs, 654 SDslu, 551 SDs, 0 SdLazy, 261 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 54, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 [2021-10-28 23:58:23,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:58:25,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:58:25,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:58:25,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:58:25,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:58:25,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:58:25,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:58:25,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:58:25,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:58:25,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:58:25,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:58:25,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:58:25,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:58:25,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:58:25,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:58:25,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:58:25,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:58:25,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:58:25,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:58:25,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:58:25,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:58:25,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:58:25,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:58:25,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:58:25,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:58:25,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:58:25,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:58:26,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:58:26,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:58:26,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:58:26,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:58:26,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:58:26,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:58:26,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:58:26,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:58:26,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:58:26,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:58:26,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:58:26,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:58:26,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:58:26,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:58:26,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-10-28 23:58:26,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:58:26,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:58:26,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:58:26,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:58:26,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:58:26,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:58:26,049 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:58:26,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:58:26,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:58:26,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:58:26,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:58:26,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:58:26,050 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:58:26,051 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:58:26,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:58:26,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:58:26,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:58:26,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:58:26,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:58:26,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:58:26,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:58:26,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:58:26,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:58:26,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:58:26,054 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:58:26,054 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:58:26,054 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:58:26,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:58:26,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:58:26,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:58:26,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:58:26,055 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-10-28 23:58:26,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:58:26,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:58:26,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:58:26,535 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:58:26,536 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:58:26,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-28 23:58:26,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/62ec6a24d/8527270a46bd408b95b7864e19695d40/FLAG52e602dbc [2021-10-28 23:58:27,637 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:58:27,638 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-10-28 23:58:27,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/62ec6a24d/8527270a46bd408b95b7864e19695d40/FLAG52e602dbc [2021-10-28 23:58:27,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/data/62ec6a24d/8527270a46bd408b95b7864e19695d40 [2021-10-28 23:58:27,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:58:27,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:58:27,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:27,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:58:27,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:58:27,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:27" (1/1) ... [2021-10-28 23:58:27,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1851490f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:27, skipping insertion in model container [2021-10-28 23:58:27,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:27" (1/1) ... [2021-10-28 23:58:28,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:58:28,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:58:28,501 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-28 23:58:28,510 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-28 23:58:28,546 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:58:28,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:58:29,827 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,828 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,828 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,829 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,843 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,859 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,859 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,862 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:29,863 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:30,505 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:58:30,506 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:58:30,508 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:58:30,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:58:30,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:58:30,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:58:30,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:58:30,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:58:30,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:58:30,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:58:30,773 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:58:30,893 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:30,894 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,258 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,259 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,284 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,285 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,292 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,292 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,307 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,308 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,309 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,309 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,310 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,310 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,311 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:31,420 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:58:31,461 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-10-28 23:58:31,462 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_8719f7f8-6e6b-4cee-a97b-f16864c44379/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-10-28 23:58:31,469 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:58:31,470 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:58:31,546 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,546 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,550 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,553 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,554 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,561 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,561 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,562 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,563 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:58:31,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:58:31,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:58:31,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:58:31,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:58:31,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:58:31,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:58:31,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:58:31,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:58:31,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:58:31,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:58:31,753 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,756 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,907 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,908 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,916 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,917 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,922 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,922 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,932 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,933 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,933 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,934 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,934 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,935 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,936 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:58:31,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:32,370 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:58:32,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32 WrapperNode [2021-10-28 23:58:32,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:32,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:32,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:58:32,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:58:32,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:32,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:58:32,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:58:32,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:58:32,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:58:32,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:58:32,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:58:32,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:58:32,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:58:32,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:32,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:32,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:58:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:58:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:58:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:58:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:58:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:58:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 23:58:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:58:33,829 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2021-10-28 23:58:33,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:58:33,839 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-10-28 23:58:33,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:33 BoogieIcfgContainer [2021-10-28 23:58:33,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:58:33,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:58:33,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:58:33,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:58:33,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:58:27" (1/3) ... [2021-10-28 23:58:33,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bbb4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:58:33, skipping insertion in model container [2021-10-28 23:58:33,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (2/3) ... [2021-10-28 23:58:33,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bbb4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:58:33, skipping insertion in model container [2021-10-28 23:58:33,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:33" (3/3) ... [2021-10-28 23:58:33,852 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_c_str_eq_harness.i [2021-10-28 23:58:33,858 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:58:33,859 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:58:33,914 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:58:33,920 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=PETRI_NET, 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 [2021-10-28 23:58:33,920 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:58:33,937 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) [2021-10-28 23:58:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:58:33,944 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:33,947 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] [2021-10-28 23:58:33,947 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:33,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:33,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1599795525, now seen corresponding path program 1 times [2021-10-28 23:58:33,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:58:33,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110321617] [2021-10-28 23:58:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:33,978 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:58:33,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:58:33,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:58:33,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:58:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:58:34,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:34,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:34,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:58:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:34,578 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:58:34,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110321617] [2021-10-28 23:58:34,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110321617] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:34,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:34,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:58:34,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811218718] [2021-10-28 23:58:34,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:58:34,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:58:34,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:58:34,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:58:34,614 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) [2021-10-28 23:58:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:34,632 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2021-10-28 23:58:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:58:34,633 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 [2021-10-28 23:58:34,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:34,643 INFO L225 Difference]: With dead ends: 106 [2021-10-28 23:58:34,643 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:58:34,646 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 [2021-10-28 23:58:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:58:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-28 23:58:34,680 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) [2021-10-28 23:58:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-10-28 23:58:34,683 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 25 [2021-10-28 23:58:34,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:34,684 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-10-28 23:58:34,684 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) [2021-10-28 23:58:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-10-28 23:58:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:58:34,686 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:34,686 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:58:34,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:34,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:58:34,908 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:34,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:34,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1892036256, now seen corresponding path program 1 times [2021-10-28 23:58:34,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:58:34,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018663601] [2021-10-28 23:58:34,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:34,912 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:58:34,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:58:34,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:58:34,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:58:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:35,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:58:35,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:35,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:35,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:58:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:35,680 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:58:35,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018663601] [2021-10-28 23:58:35,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018663601] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:35,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:35,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 10 [2021-10-28 23:58:35,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832904600] [2021-10-28 23:58:35,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:58:35,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:58:35,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:58:35,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:58:35,690 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) [2021-10-28 23:58:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:36,111 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-10-28 23:58:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:58:36,115 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 [2021-10-28 23:58:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:36,116 INFO L225 Difference]: With dead ends: 67 [2021-10-28 23:58:36,116 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:58:36,117 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 [2021-10-28 23:58:36,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:58:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-28 23:58:36,126 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) [2021-10-28 23:58:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-10-28 23:58:36,138 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 26 [2021-10-28 23:58:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:36,139 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-10-28 23:58:36,139 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) [2021-10-28 23:58:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-10-28 23:58:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:58:36,141 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:36,142 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] [2021-10-28 23:58:36,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:58:36,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:58:36,362 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:36,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:36,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1472602148, now seen corresponding path program 1 times [2021-10-28 23:58:36,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:58:36,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210765498] [2021-10-28 23:58:36,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:36,365 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:58:36,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:58:36,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:58:36,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:58:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:58:36,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:36,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:36,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:58:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:37,060 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:58:37,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210765498] [2021-10-28 23:58:37,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210765498] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:37,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:37,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 13 [2021-10-28 23:58:37,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017495101] [2021-10-28 23:58:37,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:58:37,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:58:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:58:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:58:37,064 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) [2021-10-28 23:58:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:37,682 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-10-28 23:58:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:58:37,684 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 [2021-10-28 23:58:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:37,685 INFO L225 Difference]: With dead ends: 50 [2021-10-28 23:58:37,685 INFO L226 Difference]: Without dead ends: 48 [2021-10-28 23:58:37,686 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:58:37,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-28 23:58:37,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-28 23:58:37,694 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) [2021-10-28 23:58:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-10-28 23:58:37,695 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 27 [2021-10-28 23:58:37,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:37,695 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-10-28 23:58:37,695 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) [2021-10-28 23:58:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-10-28 23:58:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:58:37,697 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:37,699 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] [2021-10-28 23:58:37,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:37,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:58:37,917 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash -788472151, now seen corresponding path program 1 times [2021-10-28 23:58:37,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:58:37,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185788945] [2021-10-28 23:58:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:37,920 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:58:37,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:58:37,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:58:37,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:58:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:58:38,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:38,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:58:38,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:38,884 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:58:38,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185788945] [2021-10-28 23:58:38,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185788945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:38,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:38,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 12 [2021-10-28 23:58:38,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776370211] [2021-10-28 23:58:38,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:58:38,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:58:38,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:58:38,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:58:38,887 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) [2021-10-28 23:58:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:39,450 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-10-28 23:58:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:58:39,451 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 [2021-10-28 23:58:39,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:39,452 INFO L225 Difference]: With dead ends: 72 [2021-10-28 23:58:39,452 INFO L226 Difference]: Without dead ends: 70 [2021-10-28 23:58:39,453 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 [2021-10-28 23:58:39,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-28 23:58:39,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 46. [2021-10-28 23:58:39,462 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) [2021-10-28 23:58:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-10-28 23:58:39,462 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 31 [2021-10-28 23:58:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:39,463 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-10-28 23:58:39,463 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) [2021-10-28 23:58:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-10-28 23:58:39,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:58:39,465 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:39,465 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] [2021-10-28 23:58:39,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:39,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:58:39,681 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:39,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1439752775, now seen corresponding path program 1 times [2021-10-28 23:58:39,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:58:39,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717246985] [2021-10-28 23:58:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:39,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:58:39,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:58:39,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:58:39,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:58:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:40,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 23:58:40,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:40,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:58:40,520 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-10-28 23:58:40,521 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 19 treesize of output 15 [2021-10-28 23:58:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:40,812 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:58:40,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717246985] [2021-10-28 23:58:40,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717246985] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:40,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:40,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-10-28 23:58:40,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615573774] [2021-10-28 23:58:40,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:58:40,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:58:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:58:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:58:40,815 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) [2021-10-28 23:58:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:40,996 INFO L93 Difference]: Finished difference Result 70 states and 69 transitions. [2021-10-28 23:58:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:58:40,996 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 [2021-10-28 23:58:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:40,997 INFO L225 Difference]: With dead ends: 70 [2021-10-28 23:58:40,998 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:58:40,998 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 [2021-10-28 23:58:40,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:58:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-28 23:58:41,005 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) [2021-10-28 23:58:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-10-28 23:58:41,006 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 36 [2021-10-28 23:58:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:41,006 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-10-28 23:58:41,007 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) [2021-10-28 23:58:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-10-28 23:58:41,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 23:58:41,008 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:41,009 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] [2021-10-28 23:58:41,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-28 23:58:41,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:58:41,229 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:58:41,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:41,230 INFO L85 PathProgramCache]: Analyzing trace with hash -740992344, now seen corresponding path program 1 times [2021-10-28 23:58:41,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:58:41,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155504499] [2021-10-28 23:58:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:41,231 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:58:41,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:58:41,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:58:41,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:58:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:42,493 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:43,756 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:58:43,757 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:58:43,758 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:58:43,764 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:58:43,764 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:58:43,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:43,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:58:43,981 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 23:58:43,985 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:58:44,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:58:44 BoogieIcfgContainer [2021-10-28 23:58:44,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:58:44,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:58:44,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:58:44,092 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:58:44,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:33" (3/4) ... [2021-10-28 23:58:44,096 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:58:44,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:58:44,097 INFO L168 Benchmark]: Toolchain (without parser) took 16108.90 ms. Allocated memory was 69.2 MB in the beginning and 222.3 MB in the end (delta: 153.1 MB). Free memory was 38.5 MB in the beginning and 66.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 124.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:44,098 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 69.2 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:44,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4382.01 ms. Allocated memory was 69.2 MB in the beginning and 144.7 MB in the end (delta: 75.5 MB). Free memory was 38.4 MB in the beginning and 62.2 MB in the end (delta: -23.9 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:44,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 247.80 ms. Allocated memory is still 144.7 MB. Free memory was 62.2 MB in the beginning and 82.7 MB in the end (delta: -20.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:44,099 INFO L168 Benchmark]: Boogie Preprocessor took 66.80 ms. Allocated memory is still 144.7 MB. Free memory was 82.7 MB in the beginning and 76.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:44,100 INFO L168 Benchmark]: RCFGBuilder took 1153.91 ms. Allocated memory is still 144.7 MB. Free memory was 76.4 MB in the beginning and 83.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:44,108 INFO L168 Benchmark]: TraceAbstraction took 10247.80 ms. Allocated memory was 144.7 MB in the beginning and 222.3 MB in the end (delta: 77.6 MB). Free memory was 82.5 MB in the beginning and 66.2 MB in the end (delta: 16.3 MB). Peak memory consumption was 93.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:44,108 INFO L168 Benchmark]: Witness Printer took 4.55 ms. Allocated memory is still 222.3 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:44,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 69.2 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4382.01 ms. Allocated memory was 69.2 MB in the beginning and 144.7 MB in the end (delta: 75.5 MB). Free memory was 38.4 MB in the beginning and 62.2 MB in the end (delta: -23.9 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 247.80 ms. Allocated memory is still 144.7 MB. Free memory was 62.2 MB in the beginning and 82.7 MB in the end (delta: -20.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.80 ms. Allocated memory is still 144.7 MB. Free memory was 82.7 MB in the beginning and 76.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1153.91 ms. Allocated memory is still 144.7 MB. Free memory was 76.4 MB in the beginning and 83.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10247.80 ms. Allocated memory was 144.7 MB in the beginning and 222.3 MB in the end (delta: 77.6 MB). Free memory was 82.5 MB in the beginning and 66.2 MB in the end (delta: 16.3 MB). Peak memory consumption was 93.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.55 ms. Allocated memory is still 222.3 MB. Free memory is still 66.2 MB. There was no memory consumed. 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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L266] return __VERIFIER_nondet_ulong(); [L6832] size_t cap = nondet_uint64_t(); [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L6839] return str; VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L6839] return str; VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L211] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L10797-L10798] _Bool rval = !strcmp(a, b); [L6272] return str && ((((1)) == 0) || ((str))); VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L10799] aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L223] COND FALSE !(!cond) VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L10799] return rval; VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [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={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L7123] a[i] [L7123] b[i] [L223] COND TRUE !cond VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] [L223] reach_error() VAL [s_can_fail_allocator_static={-9223372036720558017:0}, s_tolower_table={134217919:0}] - 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: 10.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, 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, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.3s 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, 2.1s SatisfiabilityAnalysisTime, 2.3s 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 [2021-10-28 23:58:44,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8719f7f8-6e6b-4cee-a97b-f16864c44379/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...