./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:38,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:38,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:38,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:38,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:38,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:38,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:38,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:38,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:38,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:38,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:38,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:38,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:38,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:38,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:38,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:38,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:38,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:38,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:38,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:38,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:38,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:38,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:38,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:38,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:38,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:38,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:38,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:38,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:38,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:38,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:38,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:38,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:38,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:38,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:38,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:38,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:38,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:38,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:38,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:38,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:38,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:59:38,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:38,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:38,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:38,233 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:38,233 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:38,233 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:38,233 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:38,233 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:59:38,240 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:38,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:38,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:59:38,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:59:38,242 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:38,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:59:38,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:59:38,243 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:59:38,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:38,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:59:38,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:38,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:59:38,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:38,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:59:38,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:38,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:59:38,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:38,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:59:38,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:38,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:38,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:38,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:38,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:38,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:59:38,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:59:38,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:59:38,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:59:38,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:38,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:38,250 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-11-19 13:59:38,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:38,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:38,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:38,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:38,638 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:38,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-19 13:59:38,718 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/10aca335e/1b9a893210214a22b7db4372c1b1f02f/FLAG71e498954 [2021-11-19 13:59:39,601 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:39,602 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-19 13:59:39,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/10aca335e/1b9a893210214a22b7db4372c1b1f02f/FLAG71e498954 [2021-11-19 13:59:40,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/10aca335e/1b9a893210214a22b7db4372c1b1f02f [2021-11-19 13:59:40,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:40,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:40,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:40,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:40,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:40,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:40" (1/1) ... [2021-11-19 13:59:40,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592a23a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:40, skipping insertion in model container [2021-11-19 13:59:40,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:40" (1/1) ... [2021-11-19 13:59:40,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:40,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:40,662 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-19 13:59:40,672 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-19 13:59:40,705 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:59:40,713 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:59:42,118 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,119 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,121 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,122 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,123 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,143 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,144 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,146 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,147 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:42,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:59:42,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:59:42,723 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:59:42,724 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:59:42,726 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:59:42,727 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:59:42,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:59:42,729 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:59:42,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:59:42,731 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:59:43,072 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:59:43,202 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,203 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,559 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,560 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,584 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,585 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,592 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,592 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,608 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,609 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,610 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,610 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,611 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,612 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,612 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:43,667 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:43,724 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:59:43,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31febd72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:43, skipping insertion in model container [2021-11-19 13:59:43,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:43,725 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:59:43,727 INFO L158 Benchmark]: Toolchain (without parser) took 3650.49ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 73.4MB in the beginning and 85.4MB in the end (delta: -12.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-11-19 13:59:43,727 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 94.8MB in the beginning and 94.8MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:59:43,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3647.48ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 73.0MB in the beginning and 85.4MB in the end (delta: -12.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-11-19 13:59:43,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 94.8MB in the beginning and 94.8MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3647.48ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 73.0MB in the beginning and 85.4MB in the end (delta: -12.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7003]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:45,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:45,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:45,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:45,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:45,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:45,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:45,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:45,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:45,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:45,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:45,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:45,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:45,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:45,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:45,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:45,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:45,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:45,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:45,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:45,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:46,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:46,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:46,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:46,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:46,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:46,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:46,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:46,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:46,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:46,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:46,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:46,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:46,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:46,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:46,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:46,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:46,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:46,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:46,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:46,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:46,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:59:46,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:46,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:46,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:46,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:46,048 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:46,048 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:46,049 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:46,049 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:46,049 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:46,049 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:46,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:46,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:46,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:59:46,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:46,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:59:46,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:46,051 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:59:46,052 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:59:46,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:59:46,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:46,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:59:46,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:46,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:59:46,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:46,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:46,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:46,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:46,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:59:46,054 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:59:46,054 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:59:46,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:59:46,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:46,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:46,055 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2319232de809c5fc7a2ae9b5bcaacd5710dfa5ecc8cc9afebba783e154bd6e0 [2021-11-19 13:59:46,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:46,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:46,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:46,506 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:46,507 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:46,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-19 13:59:46,604 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/3c5250397/9515d3786bbb4ddc8c3962543720df9c/FLAG3bc2d3b45 [2021-11-19 13:59:47,586 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:47,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i [2021-11-19 13:59:47,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/3c5250397/9515d3786bbb4ddc8c3962543720df9c/FLAG3bc2d3b45 [2021-11-19 13:59:48,006 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/data/3c5250397/9515d3786bbb4ddc8c3962543720df9c [2021-11-19 13:59:48,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:48,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:48,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:48,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:48,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:48,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:48" (1/1) ... [2021-11-19 13:59:48,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dffb3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:48, skipping insertion in model container [2021-11-19 13:59:48,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:48" (1/1) ... [2021-11-19 13:59:48,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:48,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:48,600 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-19 13:59:48,608 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-19 13:59:48,639 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:59:48,646 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:59:50,125 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,127 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,128 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,130 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,132 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,158 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,161 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,164 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,165 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:50,765 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:59:50,767 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:59:50,769 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:59:50,772 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:59:50,779 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:59:50,780 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:59:50,781 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:59:50,781 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:59:50,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:59:50,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:59:51,030 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:59:51,128 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,156 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,459 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,459 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,482 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,483 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,489 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,489 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,503 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,504 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,505 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,505 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,506 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,506 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,507 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,589 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:51,665 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:59:51,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:51,761 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-19 13:59:51,762 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-19 13:59:51,764 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:59:51,764 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:59:51,830 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,833 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,834 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,838 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,839 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,846 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,847 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,848 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,848 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:51,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:59:51,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:59:51,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:59:51,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:59:51,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:59:51,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:59:51,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:59:51,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:59:51,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:59:51,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:59:51,925 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:59:52,015 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,017 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,132 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,133 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,140 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,141 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,143 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,144 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,176 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,176 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,177 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,177 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,178 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,178 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,178 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,226 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:52,261 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:59:52,287 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4500,4513] [2021-11-19 13:59:52,288 WARN L230 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_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/sv-benchmarks/c/aws-c-common/aws_hash_callback_c_str_eq_harness.i[4560,4573] [2021-11-19 13:59:52,290 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:59:52,291 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:59:52,328 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,328 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,329 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,330 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,330 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,336 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,337 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,338 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,339 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,374 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:59:52,375 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:59:52,376 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:59:52,376 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:59:52,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:59:52,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:59:52,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:59:52,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:59:52,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:59:52,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:59:52,434 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:59:52,489 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,489 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,629 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,630 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,655 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,655 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,658 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,659 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,683 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,683 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,684 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,685 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,685 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,686 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,686 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:59:52,724 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:53,077 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:59:53,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53 WrapperNode [2021-11-19 13:59:53,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:53,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:53,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:59:53,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:59:53,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,332 INFO L137 Inliner]: procedures = 790, calls = 3255, calls flagged for inlining = 80, calls inlined = 5, statements flattened = 336 [2021-11-19 13:59:53,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:53,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:59:53,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:59:53,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:59:53,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:59:53,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:59:53,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:59:53,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:59:53,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (1/1) ... [2021-11-19 13:59:53,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:53,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:59:53,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:59:53,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:59:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 13:59:53,530 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 13:59:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:59:53,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:59:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:59:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:59:53,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:59:53,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:59:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 13:59:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 13:59:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:59:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 13:59:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 13:59:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:59:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:59:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 13:59:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 13:59:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:59:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_c_str_is_allocated [2021-11-19 13:59:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_c_str_is_allocated [2021-11-19 13:59:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2021-11-19 13:59:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2021-11-19 13:59:53,898 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:59:53,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:59:54,272 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2021-11-19 13:59:54,283 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:59:54,296 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:59:54,296 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 13:59:54,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:54 BoogieIcfgContainer [2021-11-19 13:59:54,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:59:54,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:59:54,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:59:54,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:59:54,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:59:48" (1/3) ... [2021-11-19 13:59:54,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3b7727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:59:54, skipping insertion in model container [2021-11-19 13:59:54,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:53" (2/3) ... [2021-11-19 13:59:54,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3b7727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:59:54, skipping insertion in model container [2021-11-19 13:59:54,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:54" (3/3) ... [2021-11-19 13:59:54,309 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_c_str_eq_harness.i [2021-11-19 13:59:54,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:59:54,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:59:54,374 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:59:54,380 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:59:54,380 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:59:54,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 13:59:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-19 13:59:54,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:54,407 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:59:54,408 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:59:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:54,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1163022186, now seen corresponding path program 1 times [2021-11-19 13:59:54,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:54,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131458985] [2021-11-19 13:59:54,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:54,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:54,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:54,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:54,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:59:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:54,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:59:54,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-19 13:59:55,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-19 13:59:55,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:55,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131458985] [2021-11-19 13:59:55,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131458985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:55,167 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:55,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:59:55,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411907828] [2021-11-19 13:59:55,169 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:55,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:59:55,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:55,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:59:55,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:59:55,204 INFO L87 Difference]: Start difference. First operand has 71 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-19 13:59:55,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:55,234 INFO L93 Difference]: Finished difference Result 139 states and 186 transitions. [2021-11-19 13:59:55,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:59:55,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 67 [2021-11-19 13:59:55,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:55,245 INFO L225 Difference]: With dead ends: 139 [2021-11-19 13:59:55,245 INFO L226 Difference]: Without dead ends: 65 [2021-11-19 13:59:55,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:59:55,252 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:55,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:59:55,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-19 13:59:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-19 13:59:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 39 states have internal predecessors, (41), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:59:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2021-11-19 13:59:55,298 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 67 [2021-11-19 13:59:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:55,299 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2021-11-19 13:59:55,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-19 13:59:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2021-11-19 13:59:55,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 13:59:55,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:55,304 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:59:55,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:55,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:55,522 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:59:55,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:55,524 INFO L85 PathProgramCache]: Analyzing trace with hash -447828983, now seen corresponding path program 1 times [2021-11-19 13:59:55,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:55,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709840520] [2021-11-19 13:59:55,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:55,526 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:55,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:55,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:55,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:59:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:55,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 13:59:55,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:59:56,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:59:56,690 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:56,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709840520] [2021-11-19 13:59:56,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709840520] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:56,690 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:56,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2021-11-19 13:59:56,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450884499] [2021-11-19 13:59:56,691 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:56,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:59:56,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:56,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:59:56,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:59:56,694 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 8 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 13:59:57,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:57,094 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2021-11-19 13:59:57,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:59:57,095 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 8 states have call predecessors, (13), 4 states have call successors, (13) Word has length 70 [2021-11-19 13:59:57,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:57,097 INFO L225 Difference]: With dead ends: 89 [2021-11-19 13:59:57,098 INFO L226 Difference]: Without dead ends: 65 [2021-11-19 13:59:57,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:59:57,099 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 32 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:57,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 722 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:59:57,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-19 13:59:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-19 13:59:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 39 states have internal predecessors, (40), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:59:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2021-11-19 13:59:57,112 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 70 [2021-11-19 13:59:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:57,112 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2021-11-19 13:59:57,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 8 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 13:59:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2021-11-19 13:59:57,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-19 13:59:57,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:57,115 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:59:57,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:57,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:57,330 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:59:57,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:57,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1505925942, now seen corresponding path program 1 times [2021-11-19 13:59:57,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:57,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379707621] [2021-11-19 13:59:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:57,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:57,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:57,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:57,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:59:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:57,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:59:57,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:59:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-19 13:59:58,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:59:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-19 13:59:58,404 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:59:58,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379707621] [2021-11-19 13:59:58,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379707621] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:59:58,405 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:59:58,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 19 [2021-11-19 13:59:58,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452530645] [2021-11-19 13:59:58,405 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:59:58,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-19 13:59:58,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:59:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-19 13:59:58,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2021-11-19 13:59:58,407 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 13 states have internal predecessors, (37), 5 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 13:59:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:59:59,013 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2021-11-19 13:59:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 13:59:59,017 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 13 states have internal predecessors, (37), 5 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 4 states have call successors, (14) Word has length 75 [2021-11-19 13:59:59,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:59:59,020 INFO L225 Difference]: With dead ends: 94 [2021-11-19 13:59:59,020 INFO L226 Difference]: Without dead ends: 92 [2021-11-19 13:59:59,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2021-11-19 13:59:59,022 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 39 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:59:59,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 1179 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:59:59,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-19 13:59:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 82. [2021-11-19 13:59:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 49 states have internal predecessors, (49), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-19 13:59:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2021-11-19 13:59:59,037 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 75 [2021-11-19 13:59:59,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:59:59,038 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2021-11-19 13:59:59,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 13 states have internal predecessors, (37), 5 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 13:59:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2021-11-19 13:59:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 13:59:59,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:59:59,041 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:59:59,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:59:59,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:59:59,263 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:59:59,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:59:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash -892933696, now seen corresponding path program 1 times [2021-11-19 13:59:59,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:59:59,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284848850] [2021-11-19 13:59:59,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:59:59,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:59:59,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:59:59,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:59:59,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:59:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:59:59,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 13:59:59,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 14:00:00,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 14:00:00,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:00,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284848850] [2021-11-19 14:00:00,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284848850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:00,538 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:00,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 18 [2021-11-19 14:00:00,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905749799] [2021-11-19 14:00:00,539 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:00,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:00:00,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:00:00,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:00:00,541 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand has 18 states, 16 states have (on average 3.0) internal successors, (48), 14 states have internal predecessors, (48), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-19 14:00:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:00,936 INFO L93 Difference]: Finished difference Result 98 states and 118 transitions. [2021-11-19 14:00:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 14:00:00,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.0) internal successors, (48), 14 states have internal predecessors, (48), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) Word has length 83 [2021-11-19 14:00:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:00,940 INFO L225 Difference]: With dead ends: 98 [2021-11-19 14:00:00,940 INFO L226 Difference]: Without dead ends: 96 [2021-11-19 14:00:00,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:00:00,942 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 45 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:00,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 920 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:00:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-19 14:00:00,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2021-11-19 14:00:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 55 states have internal predecessors, (55), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-19 14:00:00,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2021-11-19 14:00:00,957 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 108 transitions. Word has length 83 [2021-11-19 14:00:00,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:00,958 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 108 transitions. [2021-11-19 14:00:00,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.0) internal successors, (48), 14 states have internal predecessors, (48), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-19 14:00:00,959 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 108 transitions. [2021-11-19 14:00:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 14:00:00,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:00,962 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:00,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:01,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:01,177 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:00:01,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash 829878033, now seen corresponding path program 1 times [2021-11-19 14:00:01,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:01,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786960692] [2021-11-19 14:00:01,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:01,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:01,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:01,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:01,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:00:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:01,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:00:01,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:00:01,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:00:02,315 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:02,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786960692] [2021-11-19 14:00:02,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786960692] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:02,317 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:02,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 18 [2021-11-19 14:00:02,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874390589] [2021-11-19 14:00:02,317 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:02,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:00:02,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:02,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:00:02,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:00:02,319 INFO L87 Difference]: Start difference. First operand 90 states and 108 transitions. Second operand has 18 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (17), 7 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:00:02,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:02,698 INFO L93 Difference]: Finished difference Result 102 states and 121 transitions. [2021-11-19 14:00:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:00:02,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (17), 7 states have call predecessors, (17), 3 states have call successors, (17) Word has length 107 [2021-11-19 14:00:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:02,701 INFO L225 Difference]: With dead ends: 102 [2021-11-19 14:00:02,702 INFO L226 Difference]: Without dead ends: 100 [2021-11-19 14:00:02,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:00:02,703 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 15 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:02,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1468 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:00:02,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-19 14:00:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 94. [2021-11-19 14:00:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 56 states have (on average 1.0357142857142858) internal successors, (58), 58 states have internal predecessors, (58), 27 states have call successors, (27), 10 states have call predecessors, (27), 10 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-19 14:00:02,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 111 transitions. [2021-11-19 14:00:02,718 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 111 transitions. Word has length 107 [2021-11-19 14:00:02,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:02,719 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 111 transitions. [2021-11-19 14:00:02,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (17), 7 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:00:02,720 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 111 transitions. [2021-11-19 14:00:02,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-19 14:00:02,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:02,723 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:02,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:02,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:02,929 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:00:02,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:02,930 INFO L85 PathProgramCache]: Analyzing trace with hash 265370887, now seen corresponding path program 1 times [2021-11-19 14:00:02,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:02,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371145709] [2021-11-19 14:00:02,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:02,931 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:02,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:02,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:02,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:00:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:03,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:00:03,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:03,719 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:00:03,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:00:04,246 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:04,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371145709] [2021-11-19 14:00:04,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371145709] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:04,247 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:04,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 16 [2021-11-19 14:00:04,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270037309] [2021-11-19 14:00:04,247 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:04,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 14:00:04,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:04,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 14:00:04,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:00:04,249 INFO L87 Difference]: Start difference. First operand 94 states and 111 transitions. Second operand has 16 states, 15 states have (on average 2.6) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 14:00:04,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:04,582 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2021-11-19 14:00:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:00:04,583 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) Word has length 115 [2021-11-19 14:00:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:04,586 INFO L225 Difference]: With dead ends: 100 [2021-11-19 14:00:04,586 INFO L226 Difference]: Without dead ends: 96 [2021-11-19 14:00:04,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:00:04,588 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 23 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:04,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 862 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:00:04,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-19 14:00:04,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 71. [2021-11-19 14:00:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 19 states have call successors, (19), 9 states have call predecessors, (19), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 14:00:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2021-11-19 14:00:04,599 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 115 [2021-11-19 14:00:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:04,599 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2021-11-19 14:00:04,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 14:00:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2021-11-19 14:00:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-19 14:00:04,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:04,602 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:04,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:04,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:04,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:00:04,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:04,827 INFO L85 PathProgramCache]: Analyzing trace with hash -565706850, now seen corresponding path program 1 times [2021-11-19 14:00:04,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:04,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907951704] [2021-11-19 14:00:04,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:04,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:04,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:04,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:04,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:00:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:05,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:00:05,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:05,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-19 14:00:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-19 14:00:05,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:05,636 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-19 14:00:05,636 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 15 treesize of output 11 [2021-11-19 14:00:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-19 14:00:06,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:06,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907951704] [2021-11-19 14:00:06,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907951704] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:06,015 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:06,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2021-11-19 14:00:06,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713873770] [2021-11-19 14:00:06,016 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:06,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:00:06,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:06,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:00:06,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:00:06,018 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:00:06,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:06,263 INFO L93 Difference]: Finished difference Result 102 states and 120 transitions. [2021-11-19 14:00:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:00:06,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 100 [2021-11-19 14:00:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:06,265 INFO L225 Difference]: With dead ends: 102 [2021-11-19 14:00:06,265 INFO L226 Difference]: Without dead ends: 71 [2021-11-19 14:00:06,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:00:06,267 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 14 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:06,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 625 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:00:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-19 14:00:06,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-19 14:00:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.0) internal successors, (43), 43 states have internal predecessors, (43), 19 states have call successors, (19), 9 states have call predecessors, (19), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 14:00:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2021-11-19 14:00:06,278 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 100 [2021-11-19 14:00:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:06,279 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2021-11-19 14:00:06,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:00:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2021-11-19 14:00:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-19 14:00:06,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:06,282 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:06,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:06,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:06,501 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:00:06,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:06,502 INFO L85 PathProgramCache]: Analyzing trace with hash -549207241, now seen corresponding path program 1 times [2021-11-19 14:00:06,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:06,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460604067] [2021-11-19 14:00:06,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:06,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:06,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:06,504 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:06,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:00:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:00:07,295 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:00:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:00:08,232 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-19 14:00:08,232 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:00:08,233 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:00:08,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:08,460 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:08,463 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:00:08,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:00:08 BoogieIcfgContainer [2021-11-19 14:00:08,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:00:08,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:00:08,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:00:08,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:00:08,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:59:54" (3/4) ... [2021-11-19 14:00:08,572 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:00:08,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:00:08,573 INFO L158 Benchmark]: Toolchain (without parser) took 20563.25ms. Allocated memory was 75.5MB in the beginning and 406.8MB in the end (delta: 331.4MB). Free memory was 41.8MB in the beginning and 221.9MB in the end (delta: -180.1MB). Peak memory consumption was 154.4MB. Max. memory is 16.1GB. [2021-11-19 14:00:08,574 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:00:08,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5066.34ms. Allocated memory was 75.5MB in the beginning and 172.0MB in the end (delta: 96.5MB). Free memory was 41.6MB in the beginning and 76.1MB in the end (delta: -34.5MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2021-11-19 14:00:08,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 254.35ms. Allocated memory is still 172.0MB. Free memory was 76.1MB in the beginning and 105.5MB in the end (delta: -29.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-11-19 14:00:08,575 INFO L158 Benchmark]: Boogie Preprocessor took 92.70ms. Allocated memory is still 172.0MB. Free memory was 105.5MB in the beginning and 100.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:00:08,575 INFO L158 Benchmark]: RCFGBuilder took 871.36ms. Allocated memory is still 172.0MB. Free memory was 100.2MB in the beginning and 65.6MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-11-19 14:00:08,576 INFO L158 Benchmark]: TraceAbstraction took 14265.85ms. Allocated memory was 172.0MB in the beginning and 406.8MB in the end (delta: 234.9MB). Free memory was 65.6MB in the beginning and 221.9MB in the end (delta: -156.3MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2021-11-19 14:00:08,576 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 406.8MB. Free memory is still 221.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:00:08,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5066.34ms. Allocated memory was 75.5MB in the beginning and 172.0MB in the end (delta: 96.5MB). Free memory was 41.6MB in the beginning and 76.1MB in the end (delta: -34.5MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 254.35ms. Allocated memory is still 172.0MB. Free memory was 76.1MB in the beginning and 105.5MB in the end (delta: -29.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.70ms. Allocated memory is still 172.0MB. Free memory was 105.5MB in the beginning and 100.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 871.36ms. Allocated memory is still 172.0MB. Free memory was 100.2MB in the beginning and 65.6MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14265.85ms. Allocated memory was 172.0MB in the beginning and 406.8MB in the end (delta: 234.9MB). Free memory was 65.6MB in the beginning and 221.9MB in the end (delta: -156.3MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 406.8MB. Free memory is still 221.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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={49:0}, s_tolower_table={17:0}] [L11328] CALL aws_hash_callback_c_str_eq_harness() [L11318] CALL, EXPR ensure_c_str_is_allocated(64) VAL [\old(max_size)=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6832] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L266] return __VERIFIER_nondet_ulong(); [L6832] RET, EXPR nondet_uint64_t() VAL [\old(max_size)=64, max_size=64, nondet_uint64_t()=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6832] size_t cap = nondet_uint64_t(); [L6833] CALL assume_abort_if_not(cap > 0 && cap <= max_size) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6833] RET assume_abort_if_not(cap > 0 && cap <= max_size) VAL [\old(max_size)=64, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6834] CALL, EXPR bounded_malloc(cap) VAL [\old(size)=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6896-L6898] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6896-L6898] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, size=64] [L6899] return malloc(size); [L6834] RET, EXPR bounded_malloc(cap) VAL [\old(max_size)=64, bounded_malloc(cap)={15:0}, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6834] const char *str = bounded_malloc(cap); [L6838] EXPR str[cap - 1] VAL [\old(max_size)=64, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={15:0}, str[cap - 1]=0] [L6838] CALL assume_abort_if_not(str[cap - 1] == 0) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6838] RET assume_abort_if_not(str[cap - 1] == 0) VAL [\old(max_size)=64, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={15:0}, str[cap - 1]=0] [L6839] return str; VAL [\old(max_size)=64, \result={15:0}, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={15:0}] [L11318] RET, EXPR ensure_c_str_is_allocated(64) VAL [ensure_c_str_is_allocated(64)={15:0}, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L11318] const char *str1 = ensure_c_str_is_allocated(64); [L11319] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L261] return __VERIFIER_nondet_bool(); [L11319] RET, EXPR nondet_bool() VAL [nondet_bool()=0, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str1={15:0}] [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) VAL [nondet_bool()=0, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str1={15:0}] [L11319] CALL, EXPR ensure_c_str_is_allocated(64) VAL [\old(max_size)=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6832] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L266] return __VERIFIER_nondet_ulong(); [L6832] RET, EXPR nondet_uint64_t() VAL [\old(max_size)=64, max_size=64, nondet_uint64_t()=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6832] size_t cap = nondet_uint64_t(); [L6833] CALL assume_abort_if_not(cap > 0 && cap <= max_size) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6833] RET assume_abort_if_not(cap > 0 && cap <= max_size) VAL [\old(max_size)=64, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6834] CALL, EXPR bounded_malloc(cap) VAL [\old(size)=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6896-L6898] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6896-L6898] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, size=64] [L6899] return malloc(size); [L6834] RET, EXPR bounded_malloc(cap) VAL [\old(max_size)=64, bounded_malloc(cap)={7:0}, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6834] const char *str = bounded_malloc(cap); [L6838] EXPR str[cap - 1] VAL [\old(max_size)=64, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={7:0}, str[cap - 1]=0] [L6838] CALL assume_abort_if_not(str[cap - 1] == 0) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L6838] RET assume_abort_if_not(str[cap - 1] == 0) VAL [\old(max_size)=64, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={7:0}, str[cap - 1]=0] [L6839] return str; VAL [\old(max_size)=64, \result={7:0}, cap=64, max_size=64, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={7:0}] [L11319] RET, EXPR ensure_c_str_is_allocated(64) VAL [ensure_c_str_is_allocated(64)={7:0}, nondet_bool()=0, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str1={15:0}] [L11319] EXPR nondet_bool() ? str1 : ensure_c_str_is_allocated(64) VAL [ensure_c_str_is_allocated(64)={7:0}, nondet_bool()=0, nondet_bool() ? str1 : ensure_c_str_is_allocated(64)={7:0}, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str1={15:0}] [L11319] const char *str2 = nondet_bool() ? str1 : ensure_c_str_is_allocated(64); [L11322] CALL, EXPR aws_hash_callback_c_str_eq(str1, str2) [L10794] CALL, EXPR aws_c_string_is_valid(a) VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={15:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [\result=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={15:0}, str={15:0}] [L10794] RET, EXPR aws_c_string_is_valid(a) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(a)=1, b={7:0}, b={7:0}, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10794] CALL assume_abort_if_not((aws_c_string_is_valid(a))) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10794] RET assume_abort_if_not((aws_c_string_is_valid(a))) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(a)=1, b={7:0}, b={7:0}, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10795] CALL, EXPR aws_c_string_is_valid(b) VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={7:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [\result=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={7:0}, str={7:0}] [L10795] RET, EXPR aws_c_string_is_valid(b) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(b)=1, b={7:0}, b={7:0}, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10795] CALL assume_abort_if_not((aws_c_string_is_valid(b))) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10795] RET assume_abort_if_not((aws_c_string_is_valid(b))) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(b)=1, b={7:0}, b={7:0}, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10797-L10798] _Bool rval = !strcmp(a, b); [L10799] CALL, EXPR aws_c_string_is_valid(a) VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={15:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [\result=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={15:0}, str={15:0}] [L10799] RET, EXPR aws_c_string_is_valid(a) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(a)=1, b={7:0}, b={7:0}, rval=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10799] EXPR aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(a)=1, aws_c_string_is_valid(a) && aws_c_string_is_valid(b)=1, b={7:0}, b={7:0}, rval=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10799] CALL, EXPR aws_c_string_is_valid(b) VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={7:0}] [L6272] return str && ((((1)) == 0) || ((str))); VAL [\result=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}, str={7:0}, str={7:0}] [L10799] RET, EXPR aws_c_string_is_valid(b) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(a)=1, aws_c_string_is_valid(a) && aws_c_string_is_valid(b)=1, aws_c_string_is_valid(b)=1, b={7:0}, b={7:0}, rval=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10799] EXPR aws_c_string_is_valid(a) && aws_c_string_is_valid(b) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(a)=1, aws_c_string_is_valid(a) && aws_c_string_is_valid(b)=1, aws_c_string_is_valid(b)=1, b={7:0}, b={7:0}, rval=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10799] CALL __VERIFIER_assert((aws_c_string_is_valid(a) && aws_c_string_is_valid(b))) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L223] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10799] RET __VERIFIER_assert((aws_c_string_is_valid(a) && aws_c_string_is_valid(b))) VAL [a={15:0}, a={15:0}, aws_c_string_is_valid(a)=1, aws_c_string_is_valid(a) && aws_c_string_is_valid(b)=1, aws_c_string_is_valid(b)=1, b={7:0}, b={7:0}, rval=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L10799] return rval; VAL [\result=1, a={15:0}, a={15:0}, b={7:0}, b={7:0}, rval=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L11322] RET, EXPR aws_hash_callback_c_str_eq(str1, str2) [L11321-L11322] _Bool rval = aws_hash_callback_c_str_eq(str1, str2); [L11323] COND TRUE \read(rval) [L11324] size_t len = strlen(str1); [L11325] CALL assert_bytes_match(str1, str2, len) [L7113] CALL __VERIFIER_assert(!a == !b) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L223] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L7113] RET __VERIFIER_assert(!a == !b) VAL [\old(len)=1073741824, a={15:0}, a={15:0}, b={7:0}, b={7:0}, len=1073741824, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L7114-L7117] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) VAL [\old(len)=1073741824, a={15:0}, a={15:0}, b={7:0}, b={7:0}, len=1073741824, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L7119] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L266] return __VERIFIER_nondet_ulong(); [L7119] RET, EXPR nondet_uint64_t() VAL [\old(len)=1073741824, a={15:0}, a={15:0}, b={7:0}, b={7:0}, len=1073741824, nondet_uint64_t()=0, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L7119] size_t i = nondet_uint64_t(); [L7120-L7122] CALL assume_abort_if_not(i < len && len < ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L7120-L7122] RET assume_abort_if_not(i < len && len < ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(len)=1073741824, a={15:0}, a={15:0}, b={7:0}, b={7:0}, i=0, len=1073741824, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L7123] EXPR a[i] [L7123] EXPR b[i] VAL [\old(len)=1073741824, a={15:0}, a={15:0}, a[i]=48, b={7:0}, b={7:0}, b[i]=-80, i=0, len=1073741824, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L7123] CALL __VERIFIER_assert(a[i] == b[i]) VAL [\old(cond)=0, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] [L223] reach_error() VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={49:0}, s_tolower_table={17:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 8, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 5862 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5315 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1179 IncrementalHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 547 mSDtfsCounter, 1179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1246 GetRequests, 1136 SyntacticMatches, 1 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=5, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 47 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 749 NumberOfCodeBlocks, 749 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1220 ConstructedInterpolants, 0 QuantifiedInterpolants, 2714 SizeOfPredicates, 61 NumberOfNonLiveVariables, 3217 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 1194/1194 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 [2021-11-19 14:00:08,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73b8c8e-a2e0-4219-b7df-f85b04a7a7b7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample