./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF --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 a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:28:49,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:28:49,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:28:49,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:28:49,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:28:49,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:28:49,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:28:49,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:28:49,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:28:49,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:28:49,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:28:49,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:28:49,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:28:49,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:28:49,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:28:49,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:28:49,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:28:49,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:28:49,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:28:49,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:28:49,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:28:49,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:28:49,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:28:49,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:28:49,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:28:49,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:28:49,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:28:49,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:28:49,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:28:49,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:28:49,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:28:49,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:28:49,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:28:49,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:28:49,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:28:49,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:28:49,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:28:49,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:28:49,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:28:49,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:28:49,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:28:49,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:28:49,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:28:49,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:28:49,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:28:49,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:28:49,316 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:28:49,316 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:28:49,316 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:28:49,317 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:28:49,317 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:28:49,317 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:28:49,318 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:28:49,318 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:28:49,319 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:28:49,319 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:28:49,319 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:28:49,319 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:28:49,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:28:49,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:28:49,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:28:49,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:28:49,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:28:49,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:28:49,321 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:28:49,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:28:49,322 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:28:49,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:28:49,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:28:49,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:28:49,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:28:49,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:28:49,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:28:49,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:28:49,325 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:28:49,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:28:49,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:28:49,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:28:49,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:28:49,326 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_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 [2021-11-13 01:28:49,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:28:49,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:28:49,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:28:49,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:28:49,667 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:28:49,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-13 01:28:49,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/2fa6113ef/50809d943fd941bba5270f7523cc6b84/FLAG92718eb6a [2021-11-13 01:28:50,687 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:28:50,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-13 01:28:50,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/2fa6113ef/50809d943fd941bba5270f7523cc6b84/FLAG92718eb6a [2021-11-13 01:28:51,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/2fa6113ef/50809d943fd941bba5270f7523cc6b84 [2021-11-13 01:28:51,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:28:51,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:28:51,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:28:51,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:28:51,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:28:51,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:51" (1/1) ... [2021-11-13 01:28:51,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32dcb481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:51, skipping insertion in model container [2021-11-13 01:28:51,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:51" (1/1) ... [2021-11-13 01:28:51,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:28:51,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:28:51,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-13 01:28:51,630 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-13 01:28:51,655 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:28:51,662 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:28:52,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:52,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:53,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:28:53,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:28:53,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:28:53,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:28:53,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:28:53,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:28:53,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:28:53,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:28:53,049 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:28:53,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:28:53,238 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:28:53,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:53,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:53,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:28:53,520 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) [2021-11-13 01:28:53,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ce431ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:53, skipping insertion in model container [2021-11-13 01:28:53,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:28:53,522 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:28:53,524 INFO L158 Benchmark]: Toolchain (without parser) took 2367.93ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 87.4MB in the beginning and 125.6MB in the end (delta: -38.2MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2021-11-13 01:28:53,524 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory was 109.2MB in the beginning and 109.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:28:53,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2352.51ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 87.2MB in the beginning and 125.6MB in the end (delta: -38.5MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2021-11-13 01:28:53,527 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 134.2MB. Free memory was 109.2MB in the beginning and 109.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2352.51ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 87.2MB in the beginning and 125.6MB in the end (delta: -38.5MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF --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 a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:28:55,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:28:55,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:28:55,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:28:55,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:28:55,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:28:55,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:28:55,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:28:55,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:28:55,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:28:55,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:28:55,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:28:55,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:28:55,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:28:55,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:28:55,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:28:55,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:28:55,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:28:55,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:28:55,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:28:55,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:28:55,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:28:55,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:28:55,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:28:55,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:28:55,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:28:55,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:28:55,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:28:55,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:28:55,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:28:55,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:28:55,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:28:55,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:28:55,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:28:55,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:28:55,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:28:55,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:28:55,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:28:55,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:28:55,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:28:55,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:28:55,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:28:55,889 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:28:55,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:28:55,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:28:55,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:28:55,891 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:28:55,891 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:28:55,891 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:28:55,891 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:28:55,892 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:28:55,892 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:28:55,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:28:55,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:28:55,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:28:55,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:28:55,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:28:55,894 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:28:55,894 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:28:55,894 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:28:55,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:28:55,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:28:55,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:28:55,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:28:55,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:28:55,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:28:55,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:28:55,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:28:55,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:28:55,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:28:55,897 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:28:55,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:28:55,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:28:55,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:28:55,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:28:55,898 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_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 [2021-11-13 01:28:56,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:28:56,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:28:56,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:28:56,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:28:56,299 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:28:56,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-13 01:28:56,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/37fabdfe0/4867d0846e1a4d7ca98ab6c8588430f6/FLAG6e5846200 [2021-11-13 01:28:57,381 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:28:57,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-13 01:28:57,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/37fabdfe0/4867d0846e1a4d7ca98ab6c8588430f6/FLAG6e5846200 [2021-11-13 01:28:57,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/data/37fabdfe0/4867d0846e1a4d7ca98ab6c8588430f6 [2021-11-13 01:28:57,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:28:57,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:28:57,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:28:57,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:28:57,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:28:57,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:57" (1/1) ... [2021-11-13 01:28:57,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e2fa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:57, skipping insertion in model container [2021-11-13 01:28:57,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:57" (1/1) ... [2021-11-13 01:28:57,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:28:57,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:28:58,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-13 01:28:58,316 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-13 01:28:58,339 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:28:58,346 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:28:59,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:28:59,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:28:59,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:28:59,804 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:28:59,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:28:59,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:28:59,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:28:59,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:28:59,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:28:59,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:28:59,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:29:00,037 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:29:00,166 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,179 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:29:00,388 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:29:00,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:29:00,596 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-13 01:29:00,597 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-13 01:29:00,599 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:29:00,602 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:29:00,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:29:00,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:29:00,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:29:00,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:29:00,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:29:00,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:29:00,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:29:00,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:29:00,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:29:00,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:29:00,802 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:29:00,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:00,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:29:00,972 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:29:01,014 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-13 01:29:01,015 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-13 01:29:01,017 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:29:01,021 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:29:01,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:29:01,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:29:01,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:29:01,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:29:01,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:29:01,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:29:01,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:29:01,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:29:01,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:29:01,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:29:01,148 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:29:01,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:29:01,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:29:01,621 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:29:01,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01 WrapperNode [2021-11-13 01:29:01,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:29:01,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:29:01,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:29:01,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:29:01,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:01,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:01,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:29:01,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:29:01,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:29:01,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:29:01,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:01,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:01,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:01,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:01,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:02,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:02,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:02,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:29:02,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:29:02,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:29:02,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:29:02,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (1/1) ... [2021-11-13 01:29:02,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:29:02,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:29:02,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:29:02,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:29:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_store_n [2021-11-13 01:29:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_load_n [2021-11-13 01:29:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:29:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:29:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:29:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2021-11-13 01:29:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2021-11-13 01:29:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 01:29:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 01:29:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:29:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:29:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2021-11-13 01:29:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2021-11-13 01:29:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:29:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:29:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 01:29:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 01:29:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-13 01:29:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-13 01:29:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2021-11-13 01:29:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2021-11-13 01:29:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 01:29:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 01:29:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 01:29:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 01:29:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:29:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:29:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:29:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2021-11-13 01:29:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2021-11-13 01:29:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 01:29:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 01:29:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 01:29:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 01:29:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2021-11-13 01:29:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2021-11-13 01:29:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2021-11-13 01:29:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2021-11-13 01:29:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2021-11-13 01:29:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2021-11-13 01:29:15,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:29:15,976 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 01:29:15,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:15 BoogieIcfgContainer [2021-11-13 01:29:15,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:29:15,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:29:15,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:29:15,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:29:15,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:28:57" (1/3) ... [2021-11-13 01:29:15,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0b35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:15, skipping insertion in model container [2021-11-13 01:29:15,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:01" (2/3) ... [2021-11-13 01:29:15,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0b35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:15, skipping insertion in model container [2021-11-13 01:29:15,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:15" (3/3) ... [2021-11-13 01:29:15,996 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_clean_up_harness.i [2021-11-13 01:29:16,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:29:16,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 01:29:16,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:29:16,088 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 [2021-11-13 01:29:16,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 01:29:16,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 89 states have internal predecessors, (107), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-13 01:29:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-13 01:29:16,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:29:16,124 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 01:29:16,125 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:29:16,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:29:16,130 INFO L85 PathProgramCache]: Analyzing trace with hash 612691976, now seen corresponding path program 1 times [2021-11-13 01:29:16,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:29:16,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085283227] [2021-11-13 01:29:16,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:29:16,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:29:16,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:29:16,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:16,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:29:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:29:20,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:29:20,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:29:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 01:29:20,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:29:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 01:29:20,785 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:29:20,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085283227] [2021-11-13 01:29:20,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085283227] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:29:20,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:29:20,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-13 01:29:20,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848120341] [2021-11-13 01:29:20,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:29:20,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:29:20,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:29:20,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:29:20,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:29:20,822 INFO L87 Difference]: Start difference. First operand has 136 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 89 states have internal predecessors, (107), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 01:29:20,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:29:20,862 INFO L93 Difference]: Finished difference Result 261 states and 355 transitions. [2021-11-13 01:29:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:29:20,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2021-11-13 01:29:20,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:29:20,874 INFO L225 Difference]: With dead ends: 261 [2021-11-13 01:29:20,874 INFO L226 Difference]: Without dead ends: 130 [2021-11-13 01:29:20,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:29:20,882 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:29:20,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 2.20ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:29:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-13 01:29:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-11-13 01:29:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 84 states have internal predecessors, (97), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:29:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 160 transitions. [2021-11-13 01:29:20,934 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 160 transitions. Word has length 52 [2021-11-13 01:29:20,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:29:20,934 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 160 transitions. [2021-11-13 01:29:20,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 01:29:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 160 transitions. [2021-11-13 01:29:20,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-13 01:29:20,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:29:20,938 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 01:29:20,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:29:21,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:29:21,139 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:29:21,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:29:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash -333154486, now seen corresponding path program 1 times [2021-11-13 01:29:21,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:29:21,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567962236] [2021-11-13 01:29:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:29:21,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:29:21,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:29:21,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:21,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:29:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:29:24,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:29:25,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:29:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:29:25,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:29:25,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:29:25,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:29:25,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567962236] [2021-11-13 01:29:25,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567962236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:29:25,533 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:29:25,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-13 01:29:25,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774158494] [2021-11-13 01:29:25,533 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:29:25,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:29:25,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:29:25,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:29:25,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:29:25,536 INFO L87 Difference]: Start difference. First operand 130 states and 160 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-13 01:29:25,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:29:25,820 INFO L93 Difference]: Finished difference Result 242 states and 313 transitions. [2021-11-13 01:29:25,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:29:25,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 52 [2021-11-13 01:29:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:29:25,824 INFO L225 Difference]: With dead ends: 242 [2021-11-13 01:29:25,826 INFO L226 Difference]: Without dead ends: 137 [2021-11-13 01:29:25,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:29:25,832 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 28 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.58ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159.27ms IncrementalHoareTripleChecker+Time [2021-11-13 01:29:25,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 880 Invalid, 62 Unknown, 0 Unchecked, 10.58ms Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 159.27ms Time] [2021-11-13 01:29:25,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-13 01:29:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-13 01:29:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 90 states have internal predecessors, (106), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:29:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 169 transitions. [2021-11-13 01:29:25,857 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 169 transitions. Word has length 52 [2021-11-13 01:29:25,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:29:25,859 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 169 transitions. [2021-11-13 01:29:25,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-13 01:29:25,859 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2021-11-13 01:29:25,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 01:29:25,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:29:25,863 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-13 01:29:25,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:29:26,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:29:26,082 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:29:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:29:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 818368520, now seen corresponding path program 1 times [2021-11-13 01:29:26,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:29:26,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051597103] [2021-11-13 01:29:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:29:26,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:29:26,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:29:26,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:26,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:29:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:29:30,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1840 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:29:30,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:29:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 01:29:30,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:29:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 01:29:31,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:29:31,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051597103] [2021-11-13 01:29:31,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051597103] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:29:31,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:29:31,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-13 01:29:31,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185481543] [2021-11-13 01:29:31,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:29:31,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:29:31,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:29:31,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:29:31,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:29:31,369 INFO L87 Difference]: Start difference. First operand 137 states and 169 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:31,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:29:31,565 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2021-11-13 01:29:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:29:31,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 85 [2021-11-13 01:29:31,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:29:31,570 INFO L225 Difference]: With dead ends: 256 [2021-11-13 01:29:31,571 INFO L226 Difference]: Without dead ends: 139 [2021-11-13 01:29:31,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:29:31,573 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 6 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.97ms IncrementalHoareTripleChecker+Time [2021-11-13 01:29:31,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 744 Invalid, 39 Unknown, 0 Unchecked, 6.03ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 106.97ms Time] [2021-11-13 01:29:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-13 01:29:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2021-11-13 01:29:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 90 states have internal predecessors, (105), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:29:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2021-11-13 01:29:31,591 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 85 [2021-11-13 01:29:31,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:29:31,592 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2021-11-13 01:29:31,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2021-11-13 01:29:31,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-13 01:29:31,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:29:31,596 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2021-11-13 01:29:31,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:29:31,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:29:31,802 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:29:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:29:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1262194950, now seen corresponding path program 1 times [2021-11-13 01:29:31,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:29:31,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041857069] [2021-11-13 01:29:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:29:31,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:29:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:29:31,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:31,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:29:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:29:35,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 1844 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:29:35,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:29:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 01:29:36,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:29:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 01:29:37,697 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:29:37,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041857069] [2021-11-13 01:29:37,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041857069] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:29:37,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:29:37,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-11-13 01:29:37,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526876394] [2021-11-13 01:29:37,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:29:37,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:29:37,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:29:37,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:29:37,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:29:37,700 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:29:38,130 INFO L93 Difference]: Finished difference Result 258 states and 317 transitions. [2021-11-13 01:29:38,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:29:38,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 87 [2021-11-13 01:29:38,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:29:38,136 INFO L225 Difference]: With dead ends: 258 [2021-11-13 01:29:38,137 INFO L226 Difference]: Without dead ends: 141 [2021-11-13 01:29:38,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:29:38,138 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 8 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 161.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.40ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.89ms IncrementalHoareTripleChecker+Time [2021-11-13 01:29:38,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 880 Invalid, 62 Unknown, 0 Unchecked, 6.40ms Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 174.89ms Time] [2021-11-13 01:29:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-13 01:29:38,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2021-11-13 01:29:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 90 states have internal predecessors, (104), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:29:38,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2021-11-13 01:29:38,154 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 87 [2021-11-13 01:29:38,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:29:38,154 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2021-11-13 01:29:38,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:38,155 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2021-11-13 01:29:38,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-13 01:29:38,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:29:38,157 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:29:38,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:29:38,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:29:38,370 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:29:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:29:38,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1406352440, now seen corresponding path program 1 times [2021-11-13 01:29:38,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:29:38,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681062659] [2021-11-13 01:29:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:29:38,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:29:38,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:29:38,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:38,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:29:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:29:42,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:29:42,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:29:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-13 01:29:43,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:29:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 01:29:45,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:29:45,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681062659] [2021-11-13 01:29:45,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681062659] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:29:45,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:29:45,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-11-13 01:29:45,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769160118] [2021-11-13 01:29:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:29:45,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:29:45,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:29:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:29:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:29:45,404 INFO L87 Difference]: Start difference. First operand 137 states and 167 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:46,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:29:46,125 INFO L93 Difference]: Finished difference Result 260 states and 317 transitions. [2021-11-13 01:29:46,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 01:29:46,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 89 [2021-11-13 01:29:46,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:29:46,131 INFO L225 Difference]: With dead ends: 260 [2021-11-13 01:29:46,136 INFO L226 Difference]: Without dead ends: 143 [2021-11-13 01:29:46,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-13 01:29:46,138 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 11 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 196.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.50ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.30ms IncrementalHoareTripleChecker+Time [2021-11-13 01:29:46,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 1014 Invalid, 85 Unknown, 0 Unchecked, 12.50ms Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 229.30ms Time] [2021-11-13 01:29:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-13 01:29:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2021-11-13 01:29:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.1704545454545454) internal successors, (103), 90 states have internal predecessors, (103), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:29:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 166 transitions. [2021-11-13 01:29:46,163 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 166 transitions. Word has length 89 [2021-11-13 01:29:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:29:46,169 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 166 transitions. [2021-11-13 01:29:46,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 166 transitions. [2021-11-13 01:29:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-13 01:29:46,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:29:46,171 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:29:46,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:29:46,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:29:46,378 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:29:46,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:29:46,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1450120642, now seen corresponding path program 1 times [2021-11-13 01:29:46,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:29:46,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394481279] [2021-11-13 01:29:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:29:46,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:29:46,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:29:46,385 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:46,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:29:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:29:50,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:29:50,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:29:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-13 01:29:51,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:29:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 01:29:54,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:29:54,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394481279] [2021-11-13 01:29:54,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394481279] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:29:54,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:29:54,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2021-11-13 01:29:54,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733297724] [2021-11-13 01:29:54,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:29:54,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:29:54,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:29:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:29:54,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-13 01:29:54,506 INFO L87 Difference]: Start difference. First operand 137 states and 166 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:55,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:29:55,416 INFO L93 Difference]: Finished difference Result 262 states and 317 transitions. [2021-11-13 01:29:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 01:29:55,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 91 [2021-11-13 01:29:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:29:55,421 INFO L225 Difference]: With dead ends: 262 [2021-11-13 01:29:55,421 INFO L226 Difference]: Without dead ends: 145 [2021-11-13 01:29:55,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2021-11-13 01:29:55,423 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 15 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 225.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.28ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 241.35ms IncrementalHoareTripleChecker+Time [2021-11-13 01:29:55,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 1148 Invalid, 108 Unknown, 0 Unchecked, 5.28ms Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 241.35ms Time] [2021-11-13 01:29:55,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-13 01:29:55,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 137. [2021-11-13 01:29:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.1590909090909092) internal successors, (102), 90 states have internal predecessors, (102), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:29:55,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 165 transitions. [2021-11-13 01:29:55,446 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 165 transitions. Word has length 91 [2021-11-13 01:29:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:29:55,447 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 165 transitions. [2021-11-13 01:29:55,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 01:29:55,447 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 165 transitions. [2021-11-13 01:29:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-13 01:29:55,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:29:55,449 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:29:55,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-13 01:29:55,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:29:55,669 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:29:55,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:29:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1552889464, now seen corresponding path program 1 times [2021-11-13 01:29:55,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:29:55,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082993742] [2021-11-13 01:29:55,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:29:55,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:29:55,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:29:55,673 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:55,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:29:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:29:59,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:29:59,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:29:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-13 01:29:59,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:29:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-13 01:29:59,951 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:29:59,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082993742] [2021-11-13 01:29:59,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082993742] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:29:59,952 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:29:59,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-13 01:29:59,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410148540] [2021-11-13 01:29:59,952 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:29:59,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:29:59,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:29:59,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:29:59,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:29:59,954 INFO L87 Difference]: Start difference. First operand 137 states and 165 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-13 01:30:00,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:00,154 INFO L93 Difference]: Finished difference Result 137 states and 165 transitions. [2021-11-13 01:30:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:30:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2021-11-13 01:30:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:00,164 INFO L225 Difference]: With dead ends: 137 [2021-11-13 01:30:00,164 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 01:30:00,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:30:00,187 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 24 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.29ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.20ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:00,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 883 Invalid, 55 Unknown, 0 Unchecked, 3.29ms Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 111.20ms Time] [2021-11-13 01:30:00,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 01:30:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-13 01:30:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.1511627906976745) internal successors, (99), 87 states have internal predecessors, (99), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:30:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2021-11-13 01:30:00,198 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 93 [2021-11-13 01:30:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:00,199 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2021-11-13 01:30:00,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-13 01:30:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2021-11-13 01:30:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-13 01:30:00,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:00,203 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:00,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:00,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:00,426 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:00,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash -535593844, now seen corresponding path program 1 times [2021-11-13 01:30:00,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:00,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087176582] [2021-11-13 01:30:00,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:00,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:00,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:00,431 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:00,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:30:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:04,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:30:04,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-13 01:30:05,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-13 01:30:06,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:06,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087176582] [2021-11-13 01:30:06,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087176582] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:30:06,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:30:06,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-13 01:30:06,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517901390] [2021-11-13 01:30:06,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:06,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:30:06,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:30:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:30:06,257 INFO L87 Difference]: Start difference. First operand 134 states and 162 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:06,440 INFO L93 Difference]: Finished difference Result 226 states and 282 transitions. [2021-11-13 01:30:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:30:06,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 215 [2021-11-13 01:30:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:06,449 INFO L225 Difference]: With dead ends: 226 [2021-11-13 01:30:06,450 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 01:30:06,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:30:06,451 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 6 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.96ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:06,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 739 Invalid, 32 Unknown, 0 Unchecked, 2.31ms Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 106.96ms Time] [2021-11-13 01:30:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 01:30:06,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-13 01:30:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.1395348837209303) internal successors, (98), 87 states have internal predecessors, (98), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:30:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 161 transitions. [2021-11-13 01:30:06,463 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 161 transitions. Word has length 215 [2021-11-13 01:30:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:06,464 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 161 transitions. [2021-11-13 01:30:06,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 161 transitions. [2021-11-13 01:30:06,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-13 01:30:06,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:06,468 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:06,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:06,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:06,682 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:06,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1514802460, now seen corresponding path program 1 times [2021-11-13 01:30:06,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:06,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150161515] [2021-11-13 01:30:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:06,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:06,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:06,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:06,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:30:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:10,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 2141 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:30:10,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-13 01:30:11,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-13 01:30:13,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:13,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150161515] [2021-11-13 01:30:13,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150161515] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:30:13,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:30:13,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-11-13 01:30:13,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197453756] [2021-11-13 01:30:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:13,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:30:13,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:13,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:30:13,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:30:13,336 INFO L87 Difference]: Start difference. First operand 134 states and 161 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:13,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:13,543 INFO L93 Difference]: Finished difference Result 226 states and 280 transitions. [2021-11-13 01:30:13,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:30:13,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 219 [2021-11-13 01:30:13,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:13,547 INFO L225 Difference]: With dead ends: 226 [2021-11-13 01:30:13,547 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 01:30:13,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:30:13,549 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 6 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.52ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:13,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 873 Invalid, 47 Unknown, 0 Unchecked, 2.51ms Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 104.52ms Time] [2021-11-13 01:30:13,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 01:30:13,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-13 01:30:13,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.127906976744186) internal successors, (97), 87 states have internal predecessors, (97), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:30:13,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 160 transitions. [2021-11-13 01:30:13,559 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 160 transitions. Word has length 219 [2021-11-13 01:30:13,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:13,560 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 160 transitions. [2021-11-13 01:30:13,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:13,561 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 160 transitions. [2021-11-13 01:30:13,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-13 01:30:13,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:13,565 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:13,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:13,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:13,778 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:13,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2081228572, now seen corresponding path program 1 times [2021-11-13 01:30:13,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:13,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948583067] [2021-11-13 01:30:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:13,783 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:13,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:13,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:13,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:30:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:17,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 2149 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:30:17,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:18,909 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-13 01:30:18,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-13 01:30:21,474 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:21,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948583067] [2021-11-13 01:30:21,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948583067] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:30:21,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:30:21,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-11-13 01:30:21,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808269921] [2021-11-13 01:30:21,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:21,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:30:21,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:21,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:30:21,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:30:21,476 INFO L87 Difference]: Start difference. First operand 134 states and 160 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:21,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:21,712 INFO L93 Difference]: Finished difference Result 226 states and 278 transitions. [2021-11-13 01:30:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:30:21,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 223 [2021-11-13 01:30:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:21,716 INFO L225 Difference]: With dead ends: 226 [2021-11-13 01:30:21,716 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 01:30:21,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-13 01:30:21,718 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 6 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 109.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.55ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:21,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1007 Invalid, 60 Unknown, 0 Unchecked, 2.68ms Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 118.55ms Time] [2021-11-13 01:30:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 01:30:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-13 01:30:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.1162790697674418) internal successors, (96), 87 states have internal predecessors, (96), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:30:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2021-11-13 01:30:21,727 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 223 [2021-11-13 01:30:21,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:21,728 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2021-11-13 01:30:21,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2021-11-13 01:30:21,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-13 01:30:21,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:21,731 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:21,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:21,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:21,952 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:21,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:21,952 INFO L85 PathProgramCache]: Analyzing trace with hash 403806876, now seen corresponding path program 1 times [2021-11-13 01:30:21,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:21,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928359644] [2021-11-13 01:30:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:21,956 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:21,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:21,956 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:21,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:30:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:25,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 2157 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:30:25,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-11-13 01:30:27,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 12 proven. 54 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-13 01:30:30,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:30,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928359644] [2021-11-13 01:30:30,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928359644] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:30:30,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:30:30,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2021-11-13 01:30:30,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164032612] [2021-11-13 01:30:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:30,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:30:30,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:30,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:30:30,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-13 01:30:30,361 INFO L87 Difference]: Start difference. First operand 134 states and 159 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:30,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:30,631 INFO L93 Difference]: Finished difference Result 226 states and 276 transitions. [2021-11-13 01:30:30,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:30:30,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 227 [2021-11-13 01:30:30,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:30,633 INFO L225 Difference]: With dead ends: 226 [2021-11-13 01:30:30,633 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 01:30:30,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-11-13 01:30:30,635 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 6 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.58ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:30,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1141 Invalid, 71 Unknown, 0 Unchecked, 2.39ms Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 126.58ms Time] [2021-11-13 01:30:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 01:30:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-13 01:30:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.1046511627906976) internal successors, (95), 87 states have internal predecessors, (95), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:30:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2021-11-13 01:30:30,643 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 227 [2021-11-13 01:30:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:30,663 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2021-11-13 01:30:30,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 01:30:30,664 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2021-11-13 01:30:30,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-13 01:30:30,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:30,666 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:30,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:30,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:30,877 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:30,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:30,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2073213524, now seen corresponding path program 1 times [2021-11-13 01:30:30,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:30,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844114070] [2021-11-13 01:30:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:30,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:30,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:30,882 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:30,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 01:30:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:34,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 2165 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:30:34,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-13 01:30:35,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-13 01:30:36,242 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:36,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844114070] [2021-11-13 01:30:36,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844114070] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:30:36,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:30:36,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-13 01:30:36,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822441660] [2021-11-13 01:30:36,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:36,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:30:36,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:30:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:30:36,245 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 01:30:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:36,441 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2021-11-13 01:30:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:30:36,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 231 [2021-11-13 01:30:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:36,443 INFO L225 Difference]: With dead ends: 226 [2021-11-13 01:30:36,443 INFO L226 Difference]: Without dead ends: 139 [2021-11-13 01:30:36,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:30:36,445 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 39 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.69ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:36,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 490 Invalid, 50 Unknown, 0 Unchecked, 1.85ms Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 146.69ms Time] [2021-11-13 01:30:36,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-13 01:30:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-13 01:30:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.1111111111111112) internal successors, (100), 92 states have internal predecessors, (100), 32 states have call successors, (32), 15 states have call predecessors, (32), 16 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2021-11-13 01:30:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2021-11-13 01:30:36,455 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 231 [2021-11-13 01:30:36,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:36,456 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2021-11-13 01:30:36,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 01:30:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2021-11-13 01:30:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-13 01:30:36,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:36,459 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:36,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:36,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:36,674 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:36,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1158217319, now seen corresponding path program 1 times [2021-11-13 01:30:36,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:36,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230915677] [2021-11-13 01:30:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:36,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:36,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:36,678 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:36,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 01:30:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:40,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-13 01:30:40,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:40,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:30:42,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:30:42,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:30:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 205 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-13 01:30:47,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:54,459 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 100 treesize of output 94 [2021-11-13 01:30:55,253 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-13 01:30:55,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:55,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230915677] [2021-11-13 01:30:55,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230915677] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:30:55,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1760593161] [2021-11-13 01:30:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:55,255 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:30:55,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:30:55,262 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:30:55,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-13 01:30:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:56,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:30:56,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-13 01:30:57,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-11-13 01:30:58,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1760593161] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:30:58,240 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:30:58,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [26, 20] total 45 [2021-11-13 01:30:58,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360940139] [2021-11-13 01:30:58,241 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:58,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:30:58,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:58,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:30:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1799, Unknown=0, NotChecked=0, Total=1980 [2021-11-13 01:30:58,243 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 01:30:58,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:58,415 INFO L93 Difference]: Finished difference Result 203 states and 237 transitions. [2021-11-13 01:30:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:30:58,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 233 [2021-11-13 01:30:58,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:58,418 INFO L225 Difference]: With dead ends: 203 [2021-11-13 01:30:58,418 INFO L226 Difference]: Without dead ends: 140 [2021-11-13 01:30:58,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 875 SyntacticMatches, 11 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=186, Invalid=1884, Unknown=0, NotChecked=0, Total=2070 [2021-11-13 01:30:58,420 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 3 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.45ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.34ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:58,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 440 Invalid, 12 Unknown, 0 Unchecked, 1.45ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 35.34ms Time] [2021-11-13 01:30:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-13 01:30:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2021-11-13 01:30:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.1) internal successors, (99), 92 states have internal predecessors, (99), 32 states have call successors, (32), 15 states have call predecessors, (32), 16 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2021-11-13 01:30:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2021-11-13 01:30:58,430 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 233 [2021-11-13 01:30:58,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:58,432 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2021-11-13 01:30:58,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 01:30:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2021-11-13 01:30:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-13 01:30:58,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:58,434 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:30:58,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:58,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-11-13 01:30:58,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:30:58,858 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash -647221015, now seen corresponding path program 1 times [2021-11-13 01:30:58,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:58,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040444947] [2021-11-13 01:30:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:58,863 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:58,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:58,867 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:58,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 01:31:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:03,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 2169 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-13 01:31:03,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:03,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:31:04,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:04,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:31:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 205 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-13 01:31:09,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:16,781 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 100 treesize of output 94 [2021-11-13 01:31:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-13 01:31:17,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:17,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040444947] [2021-11-13 01:31:17,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040444947] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:17,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [551472157] [2021-11-13 01:31:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:17,515 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:31:17,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:31:17,516 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:31:17,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-13 01:31:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:19,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 2169 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:31:19,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-13 01:31:20,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:21,348 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-13 01:31:21,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [551472157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:21,349 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:31:21,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [26, 20] total 49 [2021-11-13 01:31:21,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775218171] [2021-11-13 01:31:21,349 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:21,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:31:21,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:21,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:31:21,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2021-11-13 01:31:21,352 INFO L87 Difference]: Start difference. First operand 139 states and 163 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-13 01:31:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:21,973 INFO L93 Difference]: Finished difference Result 199 states and 232 transitions. [2021-11-13 01:31:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:31:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 233 [2021-11-13 01:31:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:21,976 INFO L225 Difference]: With dead ends: 199 [2021-11-13 01:31:21,976 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 01:31:21,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 872 SyntacticMatches, 11 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=221, Invalid=2431, Unknown=0, NotChecked=0, Total=2652 [2021-11-13 01:31:21,978 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 47 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 237.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.68ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 271.66ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:21,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 724 Invalid, 94 Unknown, 0 Unchecked, 2.68ms Time], IncrementalHoareTripleChecker [20 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 271.66ms Time] [2021-11-13 01:31:21,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 01:31:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-13 01:31:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.0930232558139534) internal successors, (94), 87 states have internal predecessors, (94), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:31:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2021-11-13 01:31:21,987 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 233 [2021-11-13 01:31:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:21,988 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2021-11-13 01:31:21,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-13 01:31:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2021-11-13 01:31:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-13 01:31:21,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:21,990 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:22,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:22,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:22,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:22,399 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:31:22,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:22,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1472716574, now seen corresponding path program 1 times [2021-11-13 01:31:22,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:22,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015910655] [2021-11-13 01:31:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:22,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:22,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:22,403 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:22,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 01:31:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:26,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-13 01:31:26,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:26,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:31:28,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:28,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:31:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-13 01:31:33,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:39,687 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 100 treesize of output 94 [2021-11-13 01:31:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-13 01:31:40,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:40,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015910655] [2021-11-13 01:31:40,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015910655] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:40,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [647627573] [2021-11-13 01:31:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:40,473 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:31:40,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:31:40,497 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:31:40,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-13 01:31:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:42,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:31:42,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:31:42,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:31:43,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [647627573] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:43,477 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:31:43,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [26, 20] total 47 [2021-11-13 01:31:43,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881178156] [2021-11-13 01:31:43,478 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:43,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:31:43,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:43,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:31:43,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1974, Unknown=0, NotChecked=0, Total=2162 [2021-11-13 01:31:43,480 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2021-11-13 01:31:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:43,606 INFO L93 Difference]: Finished difference Result 178 states and 207 transitions. [2021-11-13 01:31:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:31:43,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 235 [2021-11-13 01:31:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:43,613 INFO L225 Difference]: With dead ends: 178 [2021-11-13 01:31:43,613 INFO L226 Difference]: Without dead ends: 136 [2021-11-13 01:31:43,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 880 SyntacticMatches, 11 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=194, Invalid=2062, Unknown=0, NotChecked=0, Total=2256 [2021-11-13 01:31:43,615 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 6 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.68ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.90ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:43,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.68ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 34.90ms Time] [2021-11-13 01:31:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-13 01:31:43,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-11-13 01:31:43,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 88 states have (on average 1.0909090909090908) internal successors, (96), 89 states have internal predecessors, (96), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 01:31:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2021-11-13 01:31:43,624 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 235 [2021-11-13 01:31:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:43,625 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2021-11-13 01:31:43,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2021-11-13 01:31:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2021-11-13 01:31:43,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-13 01:31:43,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:43,628 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:43,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:43,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-11-13 01:31:44,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:44,035 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:31:44,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1551520894, now seen corresponding path program 1 times [2021-11-13 01:31:44,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:44,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600449583] [2021-11-13 01:31:44,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:44,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:44,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:44,040 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:44,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 01:31:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:48,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 2189 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-13 01:31:48,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:48,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:31:49,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:49,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:31:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-13 01:31:55,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:32:03,829 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 100 treesize of output 94 [2021-11-13 01:32:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-11-13 01:32:04,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:32:04,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600449583] [2021-11-13 01:32:04,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600449583] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:32:04,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [105277717] [2021-11-13 01:32:04,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:32:04,656 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:32:04,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:32:04,658 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:32:04,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-13 01:32:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:32:09,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 2189 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:32:09,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:32:10,447 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:32:10,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:32:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:32:11,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [105277717] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:32:11,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818147629] [2021-11-13 01:32:11,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:32:11,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:32:11,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:32:11,826 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:32:11,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-13 01:32:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:32:13,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 2189 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-13 01:32:13,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:32:13,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:32:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:32:15,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:32:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 208 proven. 9 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-13 01:32:20,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:32:39,820 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 100 treesize of output 94 [2021-11-13 01:32:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-11-13 01:32:41,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818147629] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:32:41,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 01:32:41,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 6, 6, 19, 16] total 68 [2021-11-13 01:32:41,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066786593] [2021-11-13 01:32:41,144 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 01:32:41,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-11-13 01:32:41,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:32:41,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-11-13 01:32:41,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=4264, Unknown=7, NotChecked=0, Total=4556 [2021-11-13 01:32:41,149 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand has 68 states, 63 states have (on average 4.26984126984127) internal successors, (269), 56 states have internal predecessors, (269), 24 states have call successors, (82), 5 states have call predecessors, (82), 22 states have return successors, (87), 29 states have call predecessors, (87), 24 states have call successors, (87) [2021-11-13 01:32:43,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:45,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:47,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:49,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:51,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:53,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:55,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:57,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:32:59,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:01,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:03,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:05,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:07,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:09,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:33:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:50,681 INFO L93 Difference]: Finished difference Result 300 states and 358 transitions. [2021-11-13 01:33:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-13 01:33:50,683 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 63 states have (on average 4.26984126984127) internal successors, (269), 56 states have internal predecessors, (269), 24 states have call successors, (82), 5 states have call predecessors, (82), 22 states have return successors, (87), 29 states have call predecessors, (87), 24 states have call successors, (87) Word has length 237 [2021-11-13 01:33:50,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:50,685 INFO L225 Difference]: With dead ends: 300 [2021-11-13 01:33:50,685 INFO L226 Difference]: Without dead ends: 204 [2021-11-13 01:33:50,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1455 GetRequests, 1336 SyntacticMatches, 25 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3009 ImplicationChecksByTransitivity, 68.6s TimeCoverageRelationStatistics Valid=577, Invalid=8530, Unknown=13, NotChecked=0, Total=9120 [2021-11-13 01:33:50,691 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 129 mSDsluCounter, 4233 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 32 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31905.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 4359 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.55ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 1114 IncrementalHoareTripleChecker+Unchecked, 32519.77ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:50,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 4359 Invalid, 1856 Unknown, 0 Unchecked, 20.55ms Time], IncrementalHoareTripleChecker [32 Valid, 696 Invalid, 14 Unknown, 1114 Unchecked, 32519.77ms Time] [2021-11-13 01:33:50,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-13 01:33:50,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-11-13 01:33:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 141 states have (on average 1.1063829787234043) internal successors, (156), 142 states have internal predecessors, (156), 39 states have call successors, (39), 22 states have call predecessors, (39), 23 states have return successors, (44), 39 states have call predecessors, (44), 38 states have call successors, (44) [2021-11-13 01:33:50,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 239 transitions. [2021-11-13 01:33:50,709 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 239 transitions. Word has length 237 [2021-11-13 01:33:50,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:50,710 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 239 transitions. [2021-11-13 01:33:50,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 63 states have (on average 4.26984126984127) internal successors, (269), 56 states have internal predecessors, (269), 24 states have call successors, (82), 5 states have call predecessors, (82), 22 states have return successors, (87), 29 states have call predecessors, (87), 24 states have call successors, (87) [2021-11-13 01:33:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 239 transitions. [2021-11-13 01:33:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-13 01:33:50,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:50,713 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:50,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-13 01:33:50,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:51,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2021-11-13 01:33:51,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:33:51,322 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:33:51,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:51,323 INFO L85 PathProgramCache]: Analyzing trace with hash -856871866, now seen corresponding path program 1 times [2021-11-13 01:33:51,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:51,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581714294] [2021-11-13 01:33:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:51,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:51,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:51,328 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:51,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-13 01:33:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:55,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 2203 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:33:55,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-13 01:33:56,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-11-13 01:33:56,775 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:56,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581714294] [2021-11-13 01:33:56,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581714294] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:33:56,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:33:56,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-13 01:33:56,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830974178] [2021-11-13 01:33:56,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:56,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:33:56,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:56,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:33:56,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:33:56,777 INFO L87 Difference]: Start difference. First operand 204 states and 239 transitions. Second operand has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-13 01:33:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:57,007 INFO L93 Difference]: Finished difference Result 316 states and 375 transitions. [2021-11-13 01:33:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:33:57,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 241 [2021-11-13 01:33:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:57,010 INFO L225 Difference]: With dead ends: 316 [2021-11-13 01:33:57,010 INFO L226 Difference]: Without dead ends: 204 [2021-11-13 01:33:57,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:33:57,016 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 2 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 195.20ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:57,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 829 Invalid, 71 Unknown, 0 Unchecked, 2.26ms Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 195.20ms Time] [2021-11-13 01:33:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-13 01:33:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 201. [2021-11-13 01:33:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 138 states have (on average 1.1014492753623188) internal successors, (152), 139 states have internal predecessors, (152), 39 states have call successors, (39), 22 states have call predecessors, (39), 23 states have return successors, (44), 39 states have call predecessors, (44), 38 states have call successors, (44) [2021-11-13 01:33:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-13 01:33:57,035 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 241 [2021-11-13 01:33:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:57,036 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-13 01:33:57,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-13 01:33:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-13 01:33:57,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-13 01:33:57,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:57,039 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:57,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:57,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:57,266 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:33:57,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1839564546, now seen corresponding path program 1 times [2021-11-13 01:33:57,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:57,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360167831] [2021-11-13 01:33:57,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:57,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:57,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:57,274 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:57,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-13 01:34:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:01,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 2209 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-13 01:34:01,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:01,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:34:03,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:34:03,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:34:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-13 01:34:08,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:18,174 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 100 treesize of output 94 [2021-11-13 01:34:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-11-13 01:34:19,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:19,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360167831] [2021-11-13 01:34:19,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360167831] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:34:19,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2065369474] [2021-11-13 01:34:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:19,267 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:34:19,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:34:19,268 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:34:19,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-13 01:34:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:21,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 2209 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:34:21,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-13 01:34:22,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-13 01:34:23,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2065369474] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:34:23,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213116821] [2021-11-13 01:34:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:23,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:34:23,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:34:23,117 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:34:23,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-13 01:34:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:24,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 2209 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:34:24,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-13 01:34:25,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:26,245 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-13 01:34:26,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213116821] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:34:26,245 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 01:34:26,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 7, 7, 7, 7] total 48 [2021-11-13 01:34:26,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659657691] [2021-11-13 01:34:26,246 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 01:34:26,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-13 01:34:26,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:26,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-13 01:34:26,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2065, Unknown=0, NotChecked=0, Total=2256 [2021-11-13 01:34:26,250 INFO L87 Difference]: Start difference. First operand 201 states and 235 transitions. Second operand has 48 states, 43 states have (on average 5.046511627906977) internal successors, (217), 38 states have internal predecessors, (217), 18 states have call successors, (66), 4 states have call predecessors, (66), 14 states have return successors, (67), 22 states have call predecessors, (67), 18 states have call successors, (67) [2021-11-13 01:34:28,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:34:30,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:34:32,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:34:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:36,431 INFO L93 Difference]: Finished difference Result 360 states and 429 transitions. [2021-11-13 01:34:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-13 01:34:36,432 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 43 states have (on average 5.046511627906977) internal successors, (217), 38 states have internal predecessors, (217), 18 states have call successors, (66), 4 states have call predecessors, (66), 14 states have return successors, (67), 22 states have call predecessors, (67), 18 states have call successors, (67) Word has length 241 [2021-11-13 01:34:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:36,435 INFO L225 Difference]: With dead ends: 360 [2021-11-13 01:34:36,435 INFO L226 Difference]: Without dead ends: 227 [2021-11-13 01:34:36,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1454 GetRequests, 1386 SyntacticMatches, 14 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=258, Invalid=2822, Unknown=0, NotChecked=0, Total=3080 [2021-11-13 01:34:36,438 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 95 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7311.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.36ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 628 IncrementalHoareTripleChecker+Unchecked, 7512.42ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:36,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 2900 Invalid, 875 Unknown, 0 Unchecked, 8.36ms Time], IncrementalHoareTripleChecker [16 Valid, 228 Invalid, 3 Unknown, 628 Unchecked, 7512.42ms Time] [2021-11-13 01:34:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-13 01:34:36,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 207. [2021-11-13 01:34:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 143 states have (on average 1.097902097902098) internal successors, (157), 145 states have internal predecessors, (157), 39 states have call successors, (39), 22 states have call predecessors, (39), 24 states have return successors, (44), 39 states have call predecessors, (44), 38 states have call successors, (44) [2021-11-13 01:34:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 240 transitions. [2021-11-13 01:34:36,458 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 240 transitions. Word has length 241 [2021-11-13 01:34:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:36,459 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 240 transitions. [2021-11-13 01:34:36,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 43 states have (on average 5.046511627906977) internal successors, (217), 38 states have internal predecessors, (217), 18 states have call successors, (66), 4 states have call predecessors, (66), 14 states have return successors, (67), 22 states have call predecessors, (67), 18 states have call successors, (67) [2021-11-13 01:34:36,459 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 240 transitions. [2021-11-13 01:34:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-13 01:34:36,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:36,462 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:36,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:36,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:36,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:37,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:34:37,088 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:37,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:37,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1338501564, now seen corresponding path program 1 times [2021-11-13 01:34:37,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:37,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975313877] [2021-11-13 01:34:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:37,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:37,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:37,094 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:37,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-13 01:34:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:41,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-13 01:34:41,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:41,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:34:43,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:34:43,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:34:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-13 01:34:49,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:57,918 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 100 treesize of output 94 [2021-11-13 01:34:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-11-13 01:34:58,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:58,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975313877] [2021-11-13 01:34:58,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975313877] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:34:58,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1850612227] [2021-11-13 01:34:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:58,887 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:34:58,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:34:58,888 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:34:58,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-11-13 01:35:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:04,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:35:04,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:35:06,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:35:09,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1850612227] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:35:09,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864971458] [2021-11-13 01:35:09,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:09,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:35:09,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:35:09,436 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:35:09,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-13 01:35:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:11,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 01:35:11,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:11,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:35:13,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:13,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:35:16,130 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 5 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-13 01:35:16,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:35,229 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 100 treesize of output 94 [2021-11-13 01:35:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-11-13 01:35:36,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864971458] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:35:36,772 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 01:35:36,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 10, 10, 17, 15] total 73 [2021-11-13 01:35:36,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881896244] [2021-11-13 01:35:36,773 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 01:35:36,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-13 01:35:36,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:36,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-13 01:35:36,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=4913, Unknown=6, NotChecked=0, Total=5256 [2021-11-13 01:35:36,780 INFO L87 Difference]: Start difference. First operand 207 states and 240 transitions. Second operand has 73 states, 68 states have (on average 3.9411764705882355) internal successors, (268), 61 states have internal predecessors, (268), 22 states have call successors, (82), 4 states have call predecessors, (82), 19 states have return successors, (87), 27 states have call predecessors, (87), 22 states have call successors, (87) [2021-11-13 01:35:39,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:41,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:43,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:45,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:47,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:36:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:30,898 INFO L93 Difference]: Finished difference Result 380 states and 453 transitions. [2021-11-13 01:36:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-13 01:36:30,899 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 68 states have (on average 3.9411764705882355) internal successors, (268), 61 states have internal predecessors, (268), 22 states have call successors, (82), 4 states have call predecessors, (82), 19 states have return successors, (87), 27 states have call predecessors, (87), 22 states have call successors, (87) Word has length 241 [2021-11-13 01:36:30,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:30,901 INFO L225 Difference]: With dead ends: 380 [2021-11-13 01:36:30,902 INFO L226 Difference]: Without dead ends: 246 [2021-11-13 01:36:30,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1479 GetRequests, 1356 SyntacticMatches, 24 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3211 ImplicationChecksByTransitivity, 72.0s TimeCoverageRelationStatistics Valid=700, Invalid=9388, Unknown=12, NotChecked=0, Total=10100 [2021-11-13 01:36:30,908 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 238 mSDsluCounter, 4239 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 89 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14977.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.70ms SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 668 IncrementalHoareTripleChecker+Unchecked, 15733.11ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:30,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 4371 Invalid, 1623 Unknown, 0 Unchecked, 15.70ms Time], IncrementalHoareTripleChecker [89 Valid, 861 Invalid, 5 Unknown, 668 Unchecked, 15733.11ms Time] [2021-11-13 01:36:30,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-13 01:36:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 218. [2021-11-13 01:36:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 154 states have (on average 1.0909090909090908) internal successors, (168), 156 states have internal predecessors, (168), 39 states have call successors, (39), 22 states have call predecessors, (39), 24 states have return successors, (44), 39 states have call predecessors, (44), 38 states have call successors, (44) [2021-11-13 01:36:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 251 transitions. [2021-11-13 01:36:30,930 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 251 transitions. Word has length 241 [2021-11-13 01:36:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:30,931 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 251 transitions. [2021-11-13 01:36:30,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 68 states have (on average 3.9411764705882355) internal successors, (268), 61 states have internal predecessors, (268), 22 states have call successors, (82), 4 states have call predecessors, (82), 19 states have return successors, (87), 27 states have call predecessors, (87), 22 states have call successors, (87) [2021-11-13 01:36:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 251 transitions. [2021-11-13 01:36:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-13 01:36:30,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:30,934 INFO L514 BasicCegarLoop]: trace histogram [14, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:30,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:31,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:31,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:31,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:36:31,550 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:36:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:31,551 INFO L85 PathProgramCache]: Analyzing trace with hash -557112702, now seen corresponding path program 1 times [2021-11-13 01:36:31,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:31,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102339295] [2021-11-13 01:36:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:31,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:31,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:31,556 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:31,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-13 01:36:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:36,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 2255 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-13 01:36:36,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:36,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 01:36:38,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:36:38,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 01:36:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-11-13 01:36:44,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:52,163 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 100 treesize of output 94 [2021-11-13 01:36:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2021-11-13 01:36:53,126 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:53,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102339295] [2021-11-13 01:36:53,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102339295] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:36:53,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1373402552] [2021-11-13 01:36:53,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:53,126 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:36:53,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:36:53,130 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:36:53,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2021-11-13 01:36:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:58,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 2255 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:36:58,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:02,244 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:37:02,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-13 01:37:09,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1373402552] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:37:09,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290687797] [2021-11-13 01:37:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:09,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:37:09,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:37:09,168 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:37:09,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-13 01:37:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:11,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 2255 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-13 01:37:11,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:11,843 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-13 01:37:11,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-13 01:37:18,245 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 9 treesize of output 3 [2021-11-13 01:37:23,948 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 16 treesize of output 8 [2021-11-13 01:37:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 139 proven. 33 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-13 01:37:24,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:30,494 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 30 treesize of output 18 [2021-11-13 01:37:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-13 01:37:36,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290687797] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:37:36,163 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 01:37:36,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 18, 18, 20, 17] total 107 [2021-11-13 01:37:36,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97462366] [2021-11-13 01:37:36,164 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 01:37:36,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2021-11-13 01:37:36,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:36,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2021-11-13 01:37:36,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=654, Invalid=10688, Unknown=0, NotChecked=0, Total=11342 [2021-11-13 01:37:36,169 INFO L87 Difference]: Start difference. First operand 218 states and 251 transitions. Second operand has 107 states, 100 states have (on average 3.24) internal successors, (324), 92 states have internal predecessors, (324), 28 states have call successors, (96), 5 states have call predecessors, (96), 22 states have return successors, (100), 32 states have call predecessors, (100), 28 states have call successors, (100) [2021-11-13 01:37:38,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:40,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:42,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:44,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:46,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:48,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:50,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:52,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:54,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:56,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:37:58,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:00,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:02,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:04,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:06,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:08,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:10,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:12,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:14,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:22,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:22,901 INFO L93 Difference]: Finished difference Result 252 states and 285 transitions. [2021-11-13 01:38:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-13 01:38:22,903 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 100 states have (on average 3.24) internal successors, (324), 92 states have internal predecessors, (324), 28 states have call successors, (96), 5 states have call predecessors, (96), 22 states have return successors, (100), 32 states have call predecessors, (100), 28 states have call successors, (100) Word has length 249 [2021-11-13 01:38:22,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:22,903 INFO L225 Difference]: With dead ends: 252 [2021-11-13 01:38:22,904 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:38:22,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1500 GetRequests, 1369 SyntacticMatches, 16 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5033 ImplicationChecksByTransitivity, 45.5s TimeCoverageRelationStatistics Valid=788, Invalid=12784, Unknown=0, NotChecked=0, Total=13572 [2021-11-13 01:38:22,906 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 68 mSDsluCounter, 3855 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 5 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39617.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.37ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 569 IncrementalHoareTripleChecker+Unchecked, 40010.10ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:22,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 3929 Invalid, 888 Unknown, 0 Unchecked, 8.37ms Time], IncrementalHoareTripleChecker [5 Valid, 295 Invalid, 19 Unknown, 569 Unchecked, 40010.10ms Time] [2021-11-13 01:38:22,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:38:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:38:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:38:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:38:22,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 249 [2021-11-13 01:38:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:22,909 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:38:22,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 100 states have (on average 3.24) internal successors, (324), 92 states have internal predecessors, (324), 28 states have call successors, (96), 5 states have call predecessors, (96), 22 states have return successors, (100), 32 states have call predecessors, (100), 28 states have call successors, (100) [2021-11-13 01:38:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:38:22,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:38:22,913 INFO L764 garLoopResultBuilder]: Registering result SAFE for location aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-13 01:38:22,914 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-13 01:38:22,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:23,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:23,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:23,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:38:23,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:38:29,466 WARN L227 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 88 DAG size of output: 42 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-13 01:38:30,612 INFO L861 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2021-11-13 01:38:30,612 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-11-13 01:38:30,612 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-11-13 01:38:30,613 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-11-13 01:38:30,613 INFO L861 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: true [2021-11-13 01:38:30,613 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptr_explicitFINAL(lines 5791 5794) no Hoare annotation was computed. [2021-11-13 01:38:30,613 INFO L854 garLoopResultBuilder]: At program point L5793(line 5793) the Hoare annotation is: (or (not (= |aws_atomic_load_ptr_explicit_#in~memory_order| ~aws_memory_order~0~aws_memory_order_seq_cst)) (= aws_atomic_load_ptr_explicit_~memory_order ~aws_memory_order~0~aws_memory_order_seq_cst) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse1 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse0 (select .cse1 (_ bv32 64)))) (or (= (_ bv0 64) .cse0) (not (= (select .cse1 (_ bv8 64)) .cse0))))))) [2021-11-13 01:38:30,613 INFO L858 garLoopResultBuilder]: For program point L5793-1(line 5793) no Hoare annotation was computed. [2021-11-13 01:38:30,613 INFO L861 garLoopResultBuilder]: At program point aws_atomic_load_ptr_explicitENTRY(lines 5791 5794) the Hoare annotation is: true [2021-11-13 01:38:30,613 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptr_explicitEXIT(lines 5791 5794) no Hoare annotation was computed. [2021-11-13 01:38:30,613 INFO L858 garLoopResultBuilder]: For program point L7069-2(lines 7061 7074) no Hoare annotation was computed. [2021-11-13 01:38:30,613 INFO L858 garLoopResultBuilder]: For program point aws_mem_releaseEXIT(lines 7061 7074) no Hoare annotation was computed. [2021-11-13 01:38:30,614 INFO L858 garLoopResultBuilder]: For program point L7069(lines 7069 7073) no Hoare annotation was computed. [2021-11-13 01:38:30,614 INFO L861 garLoopResultBuilder]: At program point L7062(lines 7062 7064) the Hoare annotation is: true [2021-11-13 01:38:30,614 INFO L861 garLoopResultBuilder]: At program point aws_mem_releaseENTRY(lines 7061 7074) the Hoare annotation is: true [2021-11-13 01:38:30,614 INFO L858 garLoopResultBuilder]: For program point L7065-1(lines 7065 7067) no Hoare annotation was computed. [2021-11-13 01:38:30,614 INFO L861 garLoopResultBuilder]: At program point L7065(lines 7065 7067) the Hoare annotation is: true [2021-11-13 01:38:30,626 INFO L858 garLoopResultBuilder]: For program point L7062-1(lines 7062 7064) no Hoare annotation was computed. [2021-11-13 01:38:30,626 INFO L861 garLoopResultBuilder]: At program point aws_ring_buffer_check_atomic_ptrENTRY(lines 6039 6045) the Hoare annotation is: true [2021-11-13 01:38:30,626 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_check_atomic_ptrEXIT(lines 6039 6045) no Hoare annotation was computed. [2021-11-13 01:38:30,626 INFO L858 garLoopResultBuilder]: For program point L6044-2(line 6044) no Hoare annotation was computed. [2021-11-13 01:38:30,627 INFO L858 garLoopResultBuilder]: For program point L6044(line 6044) no Hoare annotation was computed. [2021-11-13 01:38:30,627 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_check_atomic_ptrFINAL(lines 6039 6045) no Hoare annotation was computed. [2021-11-13 01:38:30,627 INFO L861 garLoopResultBuilder]: At program point aws_atomic_store_ptrENTRY(lines 5638 5641) the Hoare annotation is: true [2021-11-13 01:38:30,627 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptrEXIT(lines 5638 5641) no Hoare annotation was computed. [2021-11-13 01:38:30,627 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptrFINAL(lines 5638 5641) no Hoare annotation was computed. [2021-11-13 01:38:30,628 INFO L861 garLoopResultBuilder]: At program point L5640(line 5640) the Hoare annotation is: true [2021-11-13 01:38:30,628 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-13 01:38:30,628 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-13 01:38:30,628 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-13 01:38:30,628 INFO L854 garLoopResultBuilder]: At program point L5809(line 5809) the Hoare annotation is: (or (not (= |aws_atomic_store_ptr_explicit_#in~memory_order| ~aws_memory_order~0~aws_memory_order_seq_cst)) (= |aws_atomic_store_ptr_explicit_#in~memory_order| aws_atomic_store_ptr_explicit_~memory_order) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_185| (_ BitVec 64))) (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_185|) (_ bv8 64))))) [2021-11-13 01:38:30,629 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptr_explicitFINAL(lines 5807 5810) no Hoare annotation was computed. [2021-11-13 01:38:30,629 INFO L858 garLoopResultBuilder]: For program point L5809-1(line 5809) no Hoare annotation was computed. [2021-11-13 01:38:30,629 INFO L861 garLoopResultBuilder]: At program point aws_atomic_store_ptr_explicitENTRY(lines 5807 5810) the Hoare annotation is: true [2021-11-13 01:38:30,629 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptr_explicitEXIT(lines 5807 5810) no Hoare annotation was computed. [2021-11-13 01:38:30,629 INFO L858 garLoopResultBuilder]: For program point aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2021-11-13 01:38:30,630 INFO L858 garLoopResultBuilder]: For program point L5746(lines 5746 5759) no Hoare annotation was computed. [2021-11-13 01:38:30,630 INFO L858 garLoopResultBuilder]: For program point aws_atomic_priv_xlate_orderEXIT(lines 5745 5760) no Hoare annotation was computed. [2021-11-13 01:38:30,630 INFO L858 garLoopResultBuilder]: For program point aws_atomic_priv_xlate_orderFINAL(lines 5745 5760) no Hoare annotation was computed. [2021-11-13 01:38:30,630 INFO L861 garLoopResultBuilder]: At program point aws_atomic_priv_xlate_orderENTRY(lines 5745 5760) the Hoare annotation is: true [2021-11-13 01:38:30,630 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-11-13 01:38:30,631 INFO L858 garLoopResultBuilder]: For program point L5755(line 5755) no Hoare annotation was computed. [2021-11-13 01:38:30,631 INFO L858 garLoopResultBuilder]: For program point L5757(line 5757) no Hoare annotation was computed. [2021-11-13 01:38:30,631 INFO L858 garLoopResultBuilder]: For program point L5751(line 5751) no Hoare annotation was computed. [2021-11-13 01:38:30,631 INFO L858 garLoopResultBuilder]: For program point L5753(line 5753) no Hoare annotation was computed. [2021-11-13 01:38:30,631 INFO L858 garLoopResultBuilder]: For program point L5747(line 5747) no Hoare annotation was computed. [2021-11-13 01:38:30,631 INFO L858 garLoopResultBuilder]: For program point L5749(line 5749) no Hoare annotation was computed. [2021-11-13 01:38:30,632 INFO L858 garLoopResultBuilder]: For program point L233(line 233) no Hoare annotation was computed. [2021-11-13 01:38:30,632 INFO L861 garLoopResultBuilder]: At program point aws_atomic_load_ptrENTRY(lines 5622 5625) the Hoare annotation is: true [2021-11-13 01:38:30,632 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptrEXIT(lines 5622 5625) no Hoare annotation was computed. [2021-11-13 01:38:30,632 INFO L858 garLoopResultBuilder]: For program point L5624-1(line 5624) no Hoare annotation was computed. [2021-11-13 01:38:30,632 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptrFINAL(lines 5622 5625) no Hoare annotation was computed. [2021-11-13 01:38:30,633 INFO L861 garLoopResultBuilder]: At program point L5624(line 5624) the Hoare annotation is: true [2021-11-13 01:38:30,633 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:38:30,633 INFO L861 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-11-13 01:38:30,633 INFO L861 garLoopResultBuilder]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2021-11-13 01:38:30,633 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:38:30,634 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-13 01:38:30,634 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-13 01:38:30,634 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-13 01:38:30,634 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-13 01:38:30,634 INFO L858 garLoopResultBuilder]: For program point L6076-2(line 6076) no Hoare annotation was computed. [2021-11-13 01:38:30,635 INFO L861 garLoopResultBuilder]: At program point aws_ring_buffer_is_validENTRY(lines 6062 6081) the Hoare annotation is: true [2021-11-13 01:38:30,635 INFO L858 garLoopResultBuilder]: For program point L6076(line 6076) no Hoare annotation was computed. [2021-11-13 01:38:30,635 INFO L858 garLoopResultBuilder]: For program point L6072-1(line 6072) no Hoare annotation was computed. [2021-11-13 01:38:30,635 INFO L854 garLoopResultBuilder]: At program point L6072(line 6072) the Hoare annotation is: (or (and (let ((.cse0 (= |aws_ring_buffer_is_valid_#in~ring_buf.offset| aws_ring_buffer_is_valid_~ring_buf.offset)) (.cse1 (= (_ bv0 64) aws_ring_buffer_is_valid_~tail~1.base))) (or (and .cse0 (= (_ bv0 64) (select (select |#memory_$Pointer$.base| aws_ring_buffer_is_valid_~ring_buf.base) (bvadd (_ bv32 64) aws_ring_buffer_is_valid_~ring_buf.offset))) (= aws_ring_buffer_is_valid_~head_in_range~0 (_ bv1 8)) .cse1 (= (select (select |#memory_$Pointer$.base| |aws_ring_buffer_is_valid_#in~ring_buf.base|) (bvadd (_ bv8 64) |aws_ring_buffer_is_valid_#in~ring_buf.offset|)) (_ bv0 64))) (and .cse0 (= aws_ring_buffer_is_valid_~head_in_range~0 (_ bv0 8)) .cse1))) (= (_ bv0 64) aws_ring_buffer_is_valid_~head~1.base) (= |aws_ring_buffer_is_valid_#in~ring_buf.base| aws_ring_buffer_is_valid_~ring_buf.base)) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse3 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse2 (select .cse3 (_ bv32 64)))) (or (= (_ bv0 64) .cse2) (not (= (select .cse3 (_ bv8 64)) .cse2))))))) [2021-11-13 01:38:30,636 INFO L854 garLoopResultBuilder]: At program point L6066(line 6066) the Hoare annotation is: (or (and (= |aws_ring_buffer_is_valid_#in~ring_buf.offset| aws_ring_buffer_is_valid_~ring_buf.offset) (= (_ bv0 64) aws_ring_buffer_is_valid_~head~1.base) (= |aws_ring_buffer_is_valid_#in~ring_buf.base| aws_ring_buffer_is_valid_~ring_buf.base)) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse1 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse0 (select .cse1 (_ bv32 64)))) (or (= (_ bv0 64) .cse0) (not (= (select .cse1 (_ bv8 64)) .cse0))))))) [2021-11-13 01:38:30,636 INFO L858 garLoopResultBuilder]: For program point L6066-1(line 6066) no Hoare annotation was computed. [2021-11-13 01:38:30,636 INFO L858 garLoopResultBuilder]: For program point L6077-3(line 6077) no Hoare annotation was computed. [2021-11-13 01:38:30,636 INFO L858 garLoopResultBuilder]: For program point L6077(line 6077) no Hoare annotation was computed. [2021-11-13 01:38:30,637 INFO L858 garLoopResultBuilder]: For program point L6077-1(line 6077) no Hoare annotation was computed. [2021-11-13 01:38:30,637 INFO L858 garLoopResultBuilder]: For program point L6077-6(lines 6077 6080) no Hoare annotation was computed. [2021-11-13 01:38:30,637 INFO L858 garLoopResultBuilder]: For program point L6077-5(line 6077) no Hoare annotation was computed. [2021-11-13 01:38:30,637 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_is_validEXIT(lines 6062 6081) no Hoare annotation was computed. [2021-11-13 01:38:30,637 INFO L854 garLoopResultBuilder]: At program point L6069(line 6069) the Hoare annotation is: (or (and (= |aws_ring_buffer_is_valid_#in~ring_buf.offset| aws_ring_buffer_is_valid_~ring_buf.offset) (= (_ bv0 64) aws_ring_buffer_is_valid_~head~1.base) (= (_ bv0 64) aws_ring_buffer_is_valid_~tail~1.base) (= |aws_ring_buffer_is_valid_#in~ring_buf.base| aws_ring_buffer_is_valid_~ring_buf.base)) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse1 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse0 (select .cse1 (_ bv32 64)))) (or (= (_ bv0 64) .cse0) (not (= (select .cse1 (_ bv8 64)) .cse0))))))) [2021-11-13 01:38:30,638 INFO L858 garLoopResultBuilder]: For program point L6077-8(lines 6077 6080) no Hoare annotation was computed. [2021-11-13 01:38:30,638 INFO L858 garLoopResultBuilder]: For program point L6069-1(line 6069) no Hoare annotation was computed. [2021-11-13 01:38:30,638 INFO L854 garLoopResultBuilder]: At program point L6065(line 6065) the Hoare annotation is: (or (and (= |aws_ring_buffer_is_valid_#in~ring_buf.offset| aws_ring_buffer_is_valid_~ring_buf.offset) (= |aws_ring_buffer_is_valid_#in~ring_buf.base| aws_ring_buffer_is_valid_~ring_buf.base)) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse1 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse0 (select .cse1 (_ bv32 64)))) (or (= (_ bv0 64) .cse0) (not (= (select .cse1 (_ bv8 64)) .cse0))))))) [2021-11-13 01:38:30,638 INFO L858 garLoopResultBuilder]: For program point L6065-1(line 6065) no Hoare annotation was computed. [2021-11-13 01:38:30,639 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_is_validFINAL(lines 6062 6081) no Hoare annotation was computed. [2021-11-13 01:38:30,639 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-11-13 01:38:30,639 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-11-13 01:38:30,639 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-11-13 01:38:30,639 INFO L854 garLoopResultBuilder]: At program point L9218-1(line 9218) the Hoare annotation is: false [2021-11-13 01:38:30,640 INFO L858 garLoopResultBuilder]: For program point L9218-2(lines 9218 9220) no Hoare annotation was computed. [2021-11-13 01:38:30,640 INFO L854 garLoopResultBuilder]: At program point L6621-1(line 6621) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,640 INFO L854 garLoopResultBuilder]: At program point L6621(line 6621) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,640 INFO L854 garLoopResultBuilder]: At program point L9206-1(line 9206) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= (_ bv0 8) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_#t~ret1545#1|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) (= (select .cse0 (bvadd (_ bv8 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|)) (select .cse0 (bvadd |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset| (_ bv32 64))))) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,641 INFO L858 garLoopResultBuilder]: For program point L9206-2(line 9206) no Hoare annotation was computed. [2021-11-13 01:38:30,641 INFO L858 garLoopResultBuilder]: For program point L6617-1(line 6617) no Hoare annotation was computed. [2021-11-13 01:38:30,641 INFO L854 garLoopResultBuilder]: At program point L6617(line 6617) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,641 INFO L854 garLoopResultBuilder]: At program point L9206(line 9206) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) (= (select .cse0 (bvadd (_ bv8 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|)) (select .cse0 (bvadd |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset| (_ bv32 64))))) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,641 INFO L858 garLoopResultBuilder]: For program point L8620(lines 8620 8622) no Hoare annotation was computed. [2021-11-13 01:38:30,642 INFO L858 garLoopResultBuilder]: For program point L8624(line 8624) no Hoare annotation was computed. [2021-11-13 01:38:30,642 INFO L858 garLoopResultBuilder]: For program point L8624-1(line 8624) no Hoare annotation was computed. [2021-11-13 01:38:30,642 INFO L854 garLoopResultBuilder]: At program point L8624-2(lines 8618 8625) the Hoare annotation is: false [2021-11-13 01:38:30,642 INFO L858 garLoopResultBuilder]: For program point L6622(line 6622) no Hoare annotation was computed. [2021-11-13 01:38:30,642 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 01:38:30,642 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:38:30,643 INFO L854 garLoopResultBuilder]: At program point L6618(line 6618) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,643 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:38:30,643 INFO L854 garLoopResultBuilder]: At program point L9215(lines 9215 9217) the Hoare annotation is: false [2021-11-13 01:38:30,643 INFO L858 garLoopResultBuilder]: For program point L9215-1(lines 9215 9217) no Hoare annotation was computed. [2021-11-13 01:38:30,643 INFO L858 garLoopResultBuilder]: For program point L6618-1(line 6618) no Hoare annotation was computed. [2021-11-13 01:38:30,644 INFO L854 garLoopResultBuilder]: At program point L8621(line 8621) the Hoare annotation is: false [2021-11-13 01:38:30,644 INFO L858 garLoopResultBuilder]: For program point L8621-1(line 8621) no Hoare annotation was computed. [2021-11-13 01:38:30,644 INFO L861 garLoopResultBuilder]: At program point L9228(line 9228) the Hoare annotation is: true [2021-11-13 01:38:30,644 INFO L858 garLoopResultBuilder]: For program point L9199(lines 9199 9227) no Hoare annotation was computed. [2021-11-13 01:38:30,644 INFO L854 garLoopResultBuilder]: At program point L9224(lines 9224 9226) the Hoare annotation is: false [2021-11-13 01:38:30,645 INFO L858 garLoopResultBuilder]: For program point L9224-1(lines 9224 9226) no Hoare annotation was computed. [2021-11-13 01:38:30,645 INFO L858 garLoopResultBuilder]: For program point L6623-1(line 6623) no Hoare annotation was computed. [2021-11-13 01:38:30,645 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:38:30,645 INFO L854 garLoopResultBuilder]: At program point L6623(line 6623) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,645 INFO L854 garLoopResultBuilder]: At program point L9212(lines 9212 9214) the Hoare annotation is: false [2021-11-13 01:38:30,646 INFO L858 garLoopResultBuilder]: For program point L9212-1(lines 9212 9214) no Hoare annotation was computed. [2021-11-13 01:38:30,646 INFO L858 garLoopResultBuilder]: For program point L6619-1(line 6619) no Hoare annotation was computed. [2021-11-13 01:38:30,646 INFO L854 garLoopResultBuilder]: At program point L6619(line 6619) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,646 INFO L858 garLoopResultBuilder]: For program point L8618(lines 8618 8625) no Hoare annotation was computed. [2021-11-13 01:38:30,646 INFO L854 garLoopResultBuilder]: At program point L9221(line 9221) the Hoare annotation is: false [2021-11-13 01:38:30,647 INFO L854 garLoopResultBuilder]: At program point L9221-1(line 9221) the Hoare annotation is: false [2021-11-13 01:38:30,647 INFO L858 garLoopResultBuilder]: For program point L9221-2(lines 9221 9223) no Hoare annotation was computed. [2021-11-13 01:38:30,647 INFO L858 garLoopResultBuilder]: For program point L6624-1(line 6624) no Hoare annotation was computed. [2021-11-13 01:38:30,647 INFO L854 garLoopResultBuilder]: At program point L6624(line 6624) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,647 INFO L858 garLoopResultBuilder]: For program point L6620-1(line 6620) no Hoare annotation was computed. [2021-11-13 01:38:30,648 INFO L854 garLoopResultBuilder]: At program point L6620(line 6620) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-13 01:38:30,648 INFO L858 garLoopResultBuilder]: For program point L6616(lines 6616 6626) no Hoare annotation was computed. [2021-11-13 01:38:30,648 INFO L854 garLoopResultBuilder]: At program point L8619(line 8619) the Hoare annotation is: false [2021-11-13 01:38:30,648 INFO L854 garLoopResultBuilder]: At program point L8619-1(line 8619) the Hoare annotation is: false [2021-11-13 01:38:30,648 INFO L854 garLoopResultBuilder]: At program point L9218(line 9218) the Hoare annotation is: false [2021-11-13 01:38:30,649 INFO L858 garLoopResultBuilder]: For program point L8619-2(line 8619) no Hoare annotation was computed. [2021-11-13 01:38:30,649 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-13 01:38:30,649 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-13 01:38:30,649 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-13 01:38:30,649 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-13 01:38:30,650 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-13 01:38:30,650 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-13 01:38:30,653 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:30,655 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:38:30,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:38:30 BoogieIcfgContainer [2021-11-13 01:38:30,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:38:30,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:38:30,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:38:30,665 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:38:30,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:15" (3/4) ... [2021-11-13 01:38:30,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:38:30,675 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-13 01:38:30,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_load_ptr [2021-11-13 01:38:30,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-11-13 01:38:30,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_load_ptr_explicit [2021-11-13 01:38:30,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_release [2021-11-13 01:38:30,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-13 01:38:30,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_ring_buffer_is_valid [2021-11-13 01:38:30,677 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-11-13 01:38:30,677 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_ring_buffer_check_atomic_ptr [2021-11-13 01:38:30,677 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_store_ptr [2021-11-13 01:38:30,677 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-13 01:38:30,678 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-13 01:38:30,678 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_store_ptr_explicit [2021-11-13 01:38:30,678 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_priv_xlate_order [2021-11-13 01:38:30,698 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2021-11-13 01:38:30,707 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2021-11-13 01:38:30,710 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-13 01:38:30,712 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 01:38:30,714 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-13 01:38:30,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 01:38:30,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:38:30,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:38:31,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:38:31,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:38:31,672 INFO L158 Benchmark]: Toolchain (without parser) took 573825.24ms. Allocated memory was 73.4MB in the beginning and 849.3MB in the end (delta: 775.9MB). Free memory was 45.6MB in the beginning and 317.7MB in the end (delta: -272.0MB). Peak memory consumption was 578.6MB. Max. memory is 16.1GB. [2021-11-13 01:38:31,673 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:38:31,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3771.01ms. Allocated memory was 73.4MB in the beginning and 144.7MB in the end (delta: 71.3MB). Free memory was 45.4MB in the beginning and 50.1MB in the end (delta: -4.6MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2021-11-13 01:38:31,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 273.96ms. Allocated memory is still 144.7MB. Free memory was 50.1MB in the beginning and 75.9MB in the end (delta: -25.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:38:31,674 INFO L158 Benchmark]: Boogie Preprocessor took 138.35ms. Allocated memory is still 144.7MB. Free memory was 75.9MB in the beginning and 65.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:38:31,674 INFO L158 Benchmark]: RCFGBuilder took 13942.46ms. Allocated memory was 144.7MB in the beginning and 675.3MB in the end (delta: 530.6MB). Free memory was 65.4MB in the beginning and 448.7MB in the end (delta: -383.3MB). Peak memory consumption was 393.4MB. Max. memory is 16.1GB. [2021-11-13 01:38:31,674 INFO L158 Benchmark]: TraceAbstraction took 554679.60ms. Allocated memory was 675.3MB in the beginning and 849.3MB in the end (delta: 174.1MB). Free memory was 447.7MB in the beginning and 653.4MB in the end (delta: -205.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:38:31,674 INFO L158 Benchmark]: Witness Printer took 1007.94ms. Allocated memory is still 849.3MB. Free memory was 652.3MB in the beginning and 317.7MB in the end (delta: 334.7MB). Peak memory consumption was 409.1MB. Max. memory is 16.1GB. [2021-11-13 01:38:31,676 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 73.4MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3771.01ms. Allocated memory was 73.4MB in the beginning and 144.7MB in the end (delta: 71.3MB). Free memory was 45.4MB in the beginning and 50.1MB in the end (delta: -4.6MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 273.96ms. Allocated memory is still 144.7MB. Free memory was 50.1MB in the beginning and 75.9MB in the end (delta: -25.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 138.35ms. Allocated memory is still 144.7MB. Free memory was 75.9MB in the beginning and 65.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 13942.46ms. Allocated memory was 144.7MB in the beginning and 675.3MB in the end (delta: 530.6MB). Free memory was 65.4MB in the beginning and 448.7MB in the end (delta: -383.3MB). Peak memory consumption was 393.4MB. Max. memory is 16.1GB. * TraceAbstraction took 554679.60ms. Allocated memory was 675.3MB in the beginning and 849.3MB in the end (delta: 174.1MB). Free memory was 447.7MB in the beginning and 653.4MB in the end (delta: -205.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 1007.94ms. Allocated memory is still 849.3MB. Free memory was 652.3MB in the beginning and 317.7MB in the end (delta: 334.7MB). Peak memory consumption was 409.1MB. 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 - PositiveResult [Line: 233]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 136 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 554.6s, OverallIterations: 20, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 185.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 41 mSolverCounterUnknown, 790 SdHoareTripleChecker+Valid, 97938.77ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 743 mSDsluCounter, 27813 SdHoareTripleChecker+Invalid, 95713.40ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2979 IncrementalHoareTripleChecker+Unchecked, 24972 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2880 IncrementalHoareTripleChecker+Invalid, 6100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 2841 mSDtfsCounter, 2880 mSolverCounterSat, 118.08ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12508 GetRequests, 11762 SyntacticMatches, 112 SemanticMatches, 634 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15099 ImplicationChecksByTransitivity, 228.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=19, InterpolantAutomatonStates: 317, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 72 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 686 PreInvPairs, 699 NumberOfFragments, 494 HoareAnnotationTreeSize, 686 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 48 FomulaSimplificationsInter, 3259 FormulaSimplificationTreeSizeReductionInter, 7.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 3.8s SsaConstructionTime, 97.8s SatisfiabilityAnalysisTime, 247.6s InterpolantComputationTime, 6211 NumberOfCodeBlocks, 6211 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 12360 ConstructedInterpolants, 1172 QuantifiedInterpolants, 44405 SizeOfPredicates, 322 NumberOfNonLiveVariables, 65351 ConjunctsInSsa, 526 ConjunctsInUnsatCore, 62 InterpolantComputations, 21 PerfectInterpolantSequences, 13521/14554 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9228]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:38:31,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0513123-3246-4679-a300-fd0562d10718/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE