./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/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_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:26:32,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:26:32,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:26:32,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:26:32,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:26:32,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:26:32,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:26:32,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:26:32,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:26:32,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:26:32,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:26:32,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:26:32,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:26:32,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:26:32,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:26:32,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:26:32,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:26:32,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:26:32,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:26:32,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:26:32,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:26:32,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:26:32,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:26:32,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:26:32,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:26:32,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:26:32,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:26:32,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:26:32,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:26:32,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:26:32,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:26:32,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:26:32,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:26:32,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:26:32,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:26:32,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:26:32,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:26:32,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:26:32,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:26:32,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:26:32,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:26:32,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:26:32,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:26:32,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:26:32,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:26:32,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:26:32,836 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:26:32,836 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:26:32,837 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:26:32,837 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:26:32,837 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:26:32,837 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:26:32,838 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:26:32,839 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:26:32,839 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:26:32,839 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:26:32,840 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:26:32,840 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:26:32,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:26:32,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:26:32,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:26:32,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:26:32,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:26:32,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:26:32,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:26:32,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:26:32,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:26:32,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:26:32,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:26:32,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:26:32,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:32,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:26:32,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:26:32,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:26:32,847 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:26:32,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:26:32,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:26:32,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:26:32,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:26:32,848 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_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 [2021-11-19 14:26:33,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:26:33,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:26:33,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:26:33,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:26:33,204 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:26:33,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-19 14:26:33,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/34d9befe5/484ede8b6c16440cb959d91305ba42af/FLAGb5f109e42 [2021-11-19 14:26:34,215 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:26:34,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-19 14:26:34,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/34d9befe5/484ede8b6c16440cb959d91305ba42af/FLAGb5f109e42 [2021-11-19 14:26:34,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/34d9befe5/484ede8b6c16440cb959d91305ba42af [2021-11-19 14:26:34,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:26:34,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:26:34,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:34,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:26:34,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:26:34,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:34" (1/1) ... [2021-11-19 14:26:34,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f00f9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:34, skipping insertion in model container [2021-11-19 14:26:34,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:34" (1/1) ... [2021-11-19 14:26:34,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:26:34,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:35,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-19 14:26:35,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-19 14:26:35,131 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:26:35,139 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:26:36,217 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,218 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,219 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,220 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,222 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,240 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,241 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,243 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,244 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:36,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:26:36,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:26:36,827 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:26:36,829 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:26:36,831 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:26:36,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:26:36,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:26:36,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:26:36,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:26:36,843 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:26:37,101 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:26:37,249 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:37,250 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:37,351 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:37,404 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:26:37,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17cfb0fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:37, skipping insertion in model container [2021-11-19 14:26:37,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:37,406 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:26:37,408 INFO L158 Benchmark]: Toolchain (without parser) took 2791.05ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.9MB in the beginning and 52.3MB in the end (delta: 6.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-19 14:26:37,409 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:26:37,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2788.49ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.6MB in the beginning and 52.3MB in the end (delta: 6.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-19 14:26:37,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2788.49ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.6MB in the beginning and 52.3MB in the end (delta: 6.4MB). Peak memory consumption was 32.4MB. 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_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/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_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:26:39,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:26:39,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:26:40,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:26:40,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:26:40,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:26:40,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:26:40,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:26:40,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:26:40,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:26:40,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:26:40,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:26:40,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:26:40,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:26:40,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:26:40,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:26:40,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:26:40,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:26:40,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:26:40,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:26:40,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:26:40,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:26:40,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:26:40,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:26:40,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:26:40,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:26:40,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:26:40,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:26:40,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:26:40,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:26:40,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:26:40,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:26:40,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:26:40,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:26:40,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:26:40,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:26:40,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:26:40,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:26:40,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:26:40,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:26:40,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:26:40,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:26:40,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:26:40,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:26:40,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:26:40,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:26:40,202 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:26:40,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:26:40,203 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:26:40,203 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:26:40,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:26:40,203 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:26:40,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:26:40,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:26:40,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:26:40,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:26:40,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:26:40,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:26:40,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:26:40,207 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:26:40,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:26:40,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:26:40,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:26:40,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:26:40,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:26:40,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:26:40,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:40,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:26:40,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:26:40,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:26:40,210 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:26:40,210 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:40,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:26:40,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:26:40,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:26:40,211 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_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e7035c8f6176239a6155d5f2c0d89271e8311db2fdadeed7cf9912856a8711 [2021-11-19 14:26:40,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:26:40,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:26:40,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:26:40,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:26:40,637 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:26:40,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-19 14:26:40,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/621fb13d9/adaf64de0e59442a8422e73d18b3c8e9/FLAG0d8a5535e [2021-11-19 14:26:41,628 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:26:41,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2021-11-19 14:26:41,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/621fb13d9/adaf64de0e59442a8422e73d18b3c8e9/FLAG0d8a5535e [2021-11-19 14:26:42,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/data/621fb13d9/adaf64de0e59442a8422e73d18b3c8e9 [2021-11-19 14:26:42,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:26:42,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:26:42,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:42,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:26:42,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:26:42,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:42" (1/1) ... [2021-11-19 14:26:42,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f6cbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:42, skipping insertion in model container [2021-11-19 14:26:42,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:42" (1/1) ... [2021-11-19 14:26:42,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:26:42,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:42,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-19 14:26:42,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-19 14:26:42,579 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:26:42,586 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:26:43,885 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,886 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,886 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,887 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,889 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,906 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,907 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,909 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:43,910 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:44,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:26:44,459 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:26:44,460 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:26:44,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:26:44,463 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:26:44,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:26:44,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:26:44,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:26:44,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:26:44,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:26:44,649 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:26:44,757 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:44,758 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:44,879 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:44,941 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:26:44,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:44,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-19 14:26:44,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-19 14:26:44,987 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:26:44,988 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:26:45,041 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,042 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,042 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,043 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,043 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,050 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,051 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,052 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,052 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:26:45,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:26:45,093 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:26:45,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:26:45,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:26:45,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:26:45,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:26:45,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:26:45,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:26:45,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:26:45,118 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:26:45,174 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,174 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,242 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:45,272 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:26:45,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2021-11-19 14:26:45,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2021-11-19 14:26:45,288 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:26:45,289 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:26:45,319 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,320 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,320 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,320 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,321 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,326 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,327 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,328 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,328 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:26:45,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:26:45,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:26:45,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:26:45,391 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:26:45,391 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:26:45,392 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:26:45,392 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:26:45,393 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:26:45,393 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:26:45,414 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:26:45,470 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,471 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:26:45,514 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:45,968 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:26:45,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45 WrapperNode [2021-11-19 14:26:45,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:45,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:45,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:26:45,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:26:45,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,306 INFO L137 Inliner]: procedures = 713, calls = 2874, calls flagged for inlining = 57, calls inlined = 6, statements flattened = 810 [2021-11-19 14:26:46,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:46,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:26:46,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:26:46,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:26:46,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:26:46,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:26:46,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:26:46,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:26:46,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:46,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:46,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:26:46,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:26:46,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:26:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_store_n [2021-11-19 14:26:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_load_n [2021-11-19 14:26:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:26:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:26:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:26:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2021-11-19 14:26:46,589 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2021-11-19 14:26:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:26:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:26:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:26:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:26:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:26:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2021-11-19 14:26:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2021-11-19 14:26:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:26:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:26:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:26:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:26:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-19 14:26:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-19 14:26:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2021-11-19 14:26:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2021-11-19 14:26:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:26:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:26:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:26:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:26:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:26:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:26:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:26:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2021-11-19 14:26:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2021-11-19 14:26:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-19 14:26:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-19 14:26:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 14:26:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 14:26:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2021-11-19 14:26:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2021-11-19 14:26:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2021-11-19 14:26:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2021-11-19 14:26:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2021-11-19 14:26:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2021-11-19 14:26:47,041 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:26:47,044 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:26:51,072 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:26:51,080 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:26:51,085 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:26:51,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:51 BoogieIcfgContainer [2021-11-19 14:26:51,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:26:51,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:26:51,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:26:51,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:26:51,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:26:42" (1/3) ... [2021-11-19 14:26:51,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3521095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:51, skipping insertion in model container [2021-11-19 14:26:51,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45" (2/3) ... [2021-11-19 14:26:51,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3521095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:51, skipping insertion in model container [2021-11-19 14:26:51,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:51" (3/3) ... [2021-11-19 14:26:51,098 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_clean_up_harness.i [2021-11-19 14:26:51,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:26:51,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 14:26:51,173 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:26:51,184 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:26:51,184 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 14:26:51,208 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) [2021-11-19 14:26:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:26:51,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:51,216 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] [2021-11-19 14:26:51,217 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:51,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:51,223 INFO L85 PathProgramCache]: Analyzing trace with hash 612691976, now seen corresponding path program 1 times [2021-11-19 14:26:51,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:51,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051323072] [2021-11-19 14:26:51,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:51,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:51,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:51,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:51,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:26:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:52,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:26:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:26:52,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:52,624 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:26:52,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:52,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051323072] [2021-11-19 14:26:52,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051323072] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:26:52,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:26:52,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:26:52,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625574908] [2021-11-19 14:26:52,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:52,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:26:52,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:52,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:26:52,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:26:52,672 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) [2021-11-19 14:26:52,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:52,721 INFO L93 Difference]: Finished difference Result 261 states and 355 transitions. [2021-11-19 14:26:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:26:52,724 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 [2021-11-19 14:26:52,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:52,738 INFO L225 Difference]: With dead ends: 261 [2021-11-19 14:26:52,739 INFO L226 Difference]: Without dead ends: 130 [2021-11-19 14:26:52,745 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 [2021-11-19 14:26:52,749 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:52,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:26:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-19 14:26:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-11-19 14:26:52,806 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) [2021-11-19 14:26:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 160 transitions. [2021-11-19 14:26:52,816 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 160 transitions. Word has length 52 [2021-11-19 14:26:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:52,817 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 160 transitions. [2021-11-19 14:26:52,819 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) [2021-11-19 14:26:52,819 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 160 transitions. [2021-11-19 14:26:52,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:26:52,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:52,823 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] [2021-11-19 14:26:52,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:53,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:53,037 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:53,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:53,038 INFO L85 PathProgramCache]: Analyzing trace with hash -333154486, now seen corresponding path program 1 times [2021-11-19 14:26:53,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:53,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607933258] [2021-11-19 14:26:53,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:53,043 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:53,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:53,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:53,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:26:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:53,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:26:53,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:26:54,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:54,263 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:26:54,263 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:54,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607933258] [2021-11-19 14:26:54,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607933258] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:26:54,266 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:26:54,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 14:26:54,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901323658] [2021-11-19 14:26:54,266 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:54,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:26:54,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:54,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:26:54,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:26:54,274 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) [2021-11-19 14:26:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:54,505 INFO L93 Difference]: Finished difference Result 242 states and 313 transitions. [2021-11-19 14:26:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:26:54,506 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 [2021-11-19 14:26:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:54,515 INFO L225 Difference]: With dead ends: 242 [2021-11-19 14:26:54,515 INFO L226 Difference]: Without dead ends: 137 [2021-11-19 14:26:54,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:26:54,522 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 28 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:54,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 880 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:26:54,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-19 14:26:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-19 14:26:54,560 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) [2021-11-19 14:26:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 169 transitions. [2021-11-19 14:26:54,571 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 169 transitions. Word has length 52 [2021-11-19 14:26:54,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:54,574 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 169 transitions. [2021-11-19 14:26:54,574 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) [2021-11-19 14:26:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2021-11-19 14:26:54,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-19 14:26:54,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:54,585 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] [2021-11-19 14:26:54,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:54,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:54,809 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:54,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:54,810 INFO L85 PathProgramCache]: Analyzing trace with hash 818368520, now seen corresponding path program 1 times [2021-11-19 14:26:54,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:54,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562774446] [2021-11-19 14:26:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:54,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:54,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:54,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:54,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:26:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:55,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:26:55,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:26:55,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:56,590 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:26:56,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:56,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562774446] [2021-11-19 14:26:56,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562774446] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:26:56,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:26:56,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 14:26:56,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609666234] [2021-11-19 14:26:56,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:56,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:26:56,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:56,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:26:56,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:26:56,601 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) [2021-11-19 14:26:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:56,787 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2021-11-19 14:26:56,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:26:56,788 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 [2021-11-19 14:26:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:56,792 INFO L225 Difference]: With dead ends: 256 [2021-11-19 14:26:56,796 INFO L226 Difference]: Without dead ends: 139 [2021-11-19 14:26:56,797 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 [2021-11-19 14:26:56,799 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 6 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:56,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 744 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:26:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-19 14:26:56,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2021-11-19 14:26:56,824 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) [2021-11-19 14:26:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2021-11-19 14:26:56,829 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 85 [2021-11-19 14:26:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:56,833 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2021-11-19 14:26:56,833 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) [2021-11-19 14:26:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2021-11-19 14:26:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-19 14:26:56,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:56,842 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] [2021-11-19 14:26:56,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:57,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:57,069 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:57,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:57,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1262194950, now seen corresponding path program 1 times [2021-11-19 14:26:57,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:57,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729458469] [2021-11-19 14:26:57,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:57,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:57,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:57,074 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:57,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:26:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:57,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:26:57,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 14:26:58,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:59,396 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:26:59,397 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:59,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729458469] [2021-11-19 14:26:59,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729458469] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:26:59,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:26:59,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-11-19 14:26:59,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834233540] [2021-11-19 14:26:59,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:59,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:26:59,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:59,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:26:59,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:26:59,399 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) [2021-11-19 14:26:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:59,602 INFO L93 Difference]: Finished difference Result 258 states and 317 transitions. [2021-11-19 14:26:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:26:59,613 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 [2021-11-19 14:26:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:59,615 INFO L225 Difference]: With dead ends: 258 [2021-11-19 14:26:59,616 INFO L226 Difference]: Without dead ends: 141 [2021-11-19 14:26:59,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:26:59,621 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 8 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:59,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 880 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:26:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-19 14:26:59,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2021-11-19 14:26:59,640 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) [2021-11-19 14:26:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2021-11-19 14:26:59,644 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 87 [2021-11-19 14:26:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:59,645 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2021-11-19 14:26:59,645 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) [2021-11-19 14:26:59,645 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2021-11-19 14:26:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-19 14:26:59,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:59,648 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] [2021-11-19 14:26:59,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:59,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:59,857 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:59,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:59,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1406352440, now seen corresponding path program 1 times [2021-11-19 14:26:59,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:59,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699891834] [2021-11-19 14:26:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:59,859 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:59,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:59,860 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:59,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:27:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:00,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:27:00,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 14:27:01,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:27:02,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:02,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699891834] [2021-11-19 14:27:02,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699891834] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:02,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:27:02,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-11-19 14:27:02,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175641765] [2021-11-19 14:27:02,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:02,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:27:02,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:02,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:27:02,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:27:02,681 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) [2021-11-19 14:27:03,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:03,025 INFO L93 Difference]: Finished difference Result 260 states and 317 transitions. [2021-11-19 14:27:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:27:03,029 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 [2021-11-19 14:27:03,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:03,031 INFO L225 Difference]: With dead ends: 260 [2021-11-19 14:27:03,031 INFO L226 Difference]: Without dead ends: 143 [2021-11-19 14:27:03,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:27:03,033 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 11 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:03,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 1014 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:03,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-19 14:27:03,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2021-11-19 14:27:03,047 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) [2021-11-19 14:27:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 166 transitions. [2021-11-19 14:27:03,049 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 166 transitions. Word has length 89 [2021-11-19 14:27:03,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:03,050 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 166 transitions. [2021-11-19 14:27:03,050 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) [2021-11-19 14:27:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 166 transitions. [2021-11-19 14:27:03,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:27:03,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:03,052 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] [2021-11-19 14:27:03,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:03,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:03,268 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:03,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1450120642, now seen corresponding path program 1 times [2021-11-19 14:27:03,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:03,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349820495] [2021-11-19 14:27:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:03,271 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:03,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:03,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:03,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:27:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:04,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1465 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:27:04,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 14:27:04,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:27:06,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:06,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349820495] [2021-11-19 14:27:06,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349820495] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:06,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:27:06,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2021-11-19 14:27:06,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481887608] [2021-11-19 14:27:06,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:06,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:27:06,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:06,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:27:06,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:27:06,603 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) [2021-11-19 14:27:07,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:07,148 INFO L93 Difference]: Finished difference Result 262 states and 317 transitions. [2021-11-19 14:27:07,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:27:07,151 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 [2021-11-19 14:27:07,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:07,153 INFO L225 Difference]: With dead ends: 262 [2021-11-19 14:27:07,153 INFO L226 Difference]: Without dead ends: 145 [2021-11-19 14:27:07,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:27:07,155 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 15 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:07,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 1148 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:27:07,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-19 14:27:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 137. [2021-11-19 14:27:07,168 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) [2021-11-19 14:27:07,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 165 transitions. [2021-11-19 14:27:07,170 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 165 transitions. Word has length 91 [2021-11-19 14:27:07,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:07,171 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 165 transitions. [2021-11-19 14:27:07,171 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) [2021-11-19 14:27:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 165 transitions. [2021-11-19 14:27:07,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-19 14:27:07,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:07,174 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] [2021-11-19 14:27:07,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:07,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:07,395 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:07,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1552889464, now seen corresponding path program 1 times [2021-11-19 14:27:07,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:07,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803337624] [2021-11-19 14:27:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:07,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:07,400 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:07,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:27:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:08,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:27:08,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 14:27:08,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 14:27:08,596 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:08,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803337624] [2021-11-19 14:27:08,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803337624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:08,597 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:08,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 14:27:08,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431997466] [2021-11-19 14:27:08,597 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:08,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:27:08,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:08,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:27:08,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:27:08,599 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) [2021-11-19 14:27:08,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:08,716 INFO L93 Difference]: Finished difference Result 137 states and 165 transitions. [2021-11-19 14:27:08,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:27:08,717 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 [2021-11-19 14:27:08,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:08,720 INFO L225 Difference]: With dead ends: 137 [2021-11-19 14:27:08,720 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 14:27:08,720 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 [2021-11-19 14:27:08,721 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 24 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:08,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 883 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:08,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 14:27:08,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-19 14:27:08,730 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) [2021-11-19 14:27:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2021-11-19 14:27:08,732 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 93 [2021-11-19 14:27:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:08,733 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2021-11-19 14:27:08,734 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) [2021-11-19 14:27:08,734 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2021-11-19 14:27:08,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-19 14:27:08,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:08,740 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] [2021-11-19 14:27:08,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:08,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:08,965 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:08,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash -535593844, now seen corresponding path program 1 times [2021-11-19 14:27:08,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:08,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24828258] [2021-11-19 14:27:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:08,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:08,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:08,970 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:08,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:27:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:09,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1746 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:27:09,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:10,437 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-19 14:27:10,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-19 14:27:11,355 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:11,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24828258] [2021-11-19 14:27:11,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24828258] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:11,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:27:11,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 14:27:11,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324341472] [2021-11-19 14:27:11,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:11,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:27:11,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:11,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:27:11,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:27:11,359 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) [2021-11-19 14:27:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:11,473 INFO L93 Difference]: Finished difference Result 226 states and 282 transitions. [2021-11-19 14:27:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:27:11,476 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 [2021-11-19 14:27:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:11,482 INFO L225 Difference]: With dead ends: 226 [2021-11-19 14:27:11,483 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 14:27:11,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:27:11,485 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 6 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:11,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 739 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 14:27:11,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-19 14:27:11,501 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) [2021-11-19 14:27:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 161 transitions. [2021-11-19 14:27:11,504 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 161 transitions. Word has length 215 [2021-11-19 14:27:11,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:11,506 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 161 transitions. [2021-11-19 14:27:11,507 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) [2021-11-19 14:27:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 161 transitions. [2021-11-19 14:27:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-19 14:27:11,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:11,518 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] [2021-11-19 14:27:11,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:11,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:11,741 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:11,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1514802460, now seen corresponding path program 1 times [2021-11-19 14:27:11,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:11,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848143321] [2021-11-19 14:27:11,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:11,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:11,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:11,745 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:11,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:27:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:12,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:27:12,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-19 14:27:13,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-19 14:27:14,650 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:14,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848143321] [2021-11-19 14:27:14,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848143321] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:14,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:27:14,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-11-19 14:27:14,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450640930] [2021-11-19 14:27:14,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:14,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:27:14,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:14,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:27:14,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:27:14,655 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) [2021-11-19 14:27:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:14,795 INFO L93 Difference]: Finished difference Result 226 states and 280 transitions. [2021-11-19 14:27:14,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:27:14,796 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 [2021-11-19 14:27:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:14,798 INFO L225 Difference]: With dead ends: 226 [2021-11-19 14:27:14,798 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 14:27:14,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:27:14,799 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 6 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:14,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 873 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 14:27:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-19 14:27:14,807 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) [2021-11-19 14:27:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 160 transitions. [2021-11-19 14:27:14,809 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 160 transitions. Word has length 219 [2021-11-19 14:27:14,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:14,809 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 160 transitions. [2021-11-19 14:27:14,810 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) [2021-11-19 14:27:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 160 transitions. [2021-11-19 14:27:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-19 14:27:14,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:14,814 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] [2021-11-19 14:27:14,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:15,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:15,028 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:15,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:15,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2081228572, now seen corresponding path program 1 times [2021-11-19 14:27:15,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:15,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744018386] [2021-11-19 14:27:15,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:15,031 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:15,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:15,032 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:15,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:27:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:16,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:27:16,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-19 14:27:16,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 14:27:18,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:18,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744018386] [2021-11-19 14:27:18,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744018386] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:18,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:27:18,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-11-19 14:27:18,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278534334] [2021-11-19 14:27:18,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:18,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:27:18,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:18,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:27:18,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:27:18,174 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) [2021-11-19 14:27:18,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:18,348 INFO L93 Difference]: Finished difference Result 226 states and 278 transitions. [2021-11-19 14:27:18,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:27:18,350 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 [2021-11-19 14:27:18,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:18,352 INFO L225 Difference]: With dead ends: 226 [2021-11-19 14:27:18,352 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 14:27:18,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:27:18,354 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 6 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:18,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1007 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:18,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 14:27:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-19 14:27:18,365 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) [2021-11-19 14:27:18,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2021-11-19 14:27:18,368 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 223 [2021-11-19 14:27:18,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:18,369 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2021-11-19 14:27:18,369 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) [2021-11-19 14:27:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2021-11-19 14:27:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-19 14:27:18,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:18,373 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] [2021-11-19 14:27:18,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:18,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:18,589 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:18,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:18,590 INFO L85 PathProgramCache]: Analyzing trace with hash 403806876, now seen corresponding path program 1 times [2021-11-19 14:27:18,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:18,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353474489] [2021-11-19 14:27:18,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:18,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:18,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:18,593 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:18,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:27:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:19,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:27:19,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-11-19 14:27:20,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 12 proven. 54 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-19 14:27:22,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:22,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353474489] [2021-11-19 14:27:22,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353474489] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:22,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:27:22,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2021-11-19 14:27:22,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660070364] [2021-11-19 14:27:22,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:22,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:27:22,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:22,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:27:22,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:27:22,282 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) [2021-11-19 14:27:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:22,477 INFO L93 Difference]: Finished difference Result 226 states and 276 transitions. [2021-11-19 14:27:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:27:22,478 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 [2021-11-19 14:27:22,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:22,481 INFO L225 Difference]: With dead ends: 226 [2021-11-19 14:27:22,481 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 14:27:22,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:27:22,487 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 6 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:22,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1141 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:22,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 14:27:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-19 14:27:22,498 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) [2021-11-19 14:27:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2021-11-19 14:27:22,501 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 227 [2021-11-19 14:27:22,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:22,502 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2021-11-19 14:27:22,502 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) [2021-11-19 14:27:22,503 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2021-11-19 14:27:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-19 14:27:22,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:22,506 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] [2021-11-19 14:27:22,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:22,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:22,729 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:22,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:22,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2073213524, now seen corresponding path program 1 times [2021-11-19 14:27:22,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:22,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077979892] [2021-11-19 14:27:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:22,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:22,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:22,740 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:22,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:27:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:23,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:27:23,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:24,310 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-19 14:27:24,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:27:24,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:24,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077979892] [2021-11-19 14:27:24,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077979892] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:24,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:27:24,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-19 14:27:24,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453634131] [2021-11-19 14:27:24,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:24,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:27:24,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:24,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:27:24,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:27:24,883 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) [2021-11-19 14:27:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:25,016 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2021-11-19 14:27:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:27:25,017 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 [2021-11-19 14:27:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:25,018 INFO L225 Difference]: With dead ends: 226 [2021-11-19 14:27:25,018 INFO L226 Difference]: Without dead ends: 139 [2021-11-19 14:27:25,019 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 [2021-11-19 14:27:25,020 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 39 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:25,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 490 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:25,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-19 14:27:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-19 14:27:25,029 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) [2021-11-19 14:27:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2021-11-19 14:27:25,031 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 231 [2021-11-19 14:27:25,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:25,032 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2021-11-19 14:27:25,033 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) [2021-11-19 14:27:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2021-11-19 14:27:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-19 14:27:25,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:25,036 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] [2021-11-19 14:27:25,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:25,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:25,249 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:25,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1158217319, now seen corresponding path program 1 times [2021-11-19 14:27:25,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:25,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636332120] [2021-11-19 14:27:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:25,252 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:25,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:25,253 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:25,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:27:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:26,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-19 14:27:26,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:26,433 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 [2021-11-19 14:27:27,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:27:27,634 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 [2021-11-19 14:27:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 205 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-19 14:27:31,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:37,460 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 [2021-11-19 14:27:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-19 14:27:38,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:38,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636332120] [2021-11-19 14:27:38,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636332120] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:27:38,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [348997645] [2021-11-19 14:27:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:38,232 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:27:38,246 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:27:38,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-19 14:27:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:38,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:27:38,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-19 14:27:39,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-11-19 14:27:40,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [348997645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:40,067 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:27:40,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [26, 20] total 45 [2021-11-19 14:27:40,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573083625] [2021-11-19 14:27:40,068 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:40,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:27:40,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:40,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:27:40,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1799, Unknown=0, NotChecked=0, Total=1980 [2021-11-19 14:27:40,071 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) [2021-11-19 14:27:40,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:40,197 INFO L93 Difference]: Finished difference Result 203 states and 237 transitions. [2021-11-19 14:27:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:27:40,198 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 [2021-11-19 14:27:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:40,201 INFO L225 Difference]: With dead ends: 203 [2021-11-19 14:27:40,201 INFO L226 Difference]: Without dead ends: 140 [2021-11-19 14:27:40,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 875 SyntacticMatches, 11 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=186, Invalid=1884, Unknown=0, NotChecked=0, Total=2070 [2021-11-19 14:27:40,204 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 3 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:40,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 440 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:27:40,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-19 14:27:40,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2021-11-19 14:27:40,213 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) [2021-11-19 14:27:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2021-11-19 14:27:40,215 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 233 [2021-11-19 14:27:40,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:40,216 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2021-11-19 14:27:40,216 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) [2021-11-19 14:27:40,217 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2021-11-19 14:27:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-19 14:27:40,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:40,219 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] [2021-11-19 14:27:40,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:40,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:40,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:40,640 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:40,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:40,640 INFO L85 PathProgramCache]: Analyzing trace with hash -647221015, now seen corresponding path program 1 times [2021-11-19 14:27:40,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:40,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29174280] [2021-11-19 14:27:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:40,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:40,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:40,644 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:40,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:27:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:41,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-19 14:27:41,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:41,984 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 [2021-11-19 14:27:43,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:27:43,252 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 [2021-11-19 14:27:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 205 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-19 14:27:47,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:53,504 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 [2021-11-19 14:27:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-19 14:27:54,204 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:54,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29174280] [2021-11-19 14:27:54,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29174280] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:27:54,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1535194815] [2021-11-19 14:27:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:54,205 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:54,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:27:54,206 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:27:54,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-19 14:27:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:54,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:27:54,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-19 14:27:55,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:27:56,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1535194815] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:56,533 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:27:56,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [26, 20] total 49 [2021-11-19 14:27:56,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383518892] [2021-11-19 14:27:56,534 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:56,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:27:56,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:56,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:27:56,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2021-11-19 14:27:56,536 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) [2021-11-19 14:27:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:57,142 INFO L93 Difference]: Finished difference Result 199 states and 232 transitions. [2021-11-19 14:27:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:27:57,143 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 [2021-11-19 14:27:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:57,146 INFO L225 Difference]: With dead ends: 199 [2021-11-19 14:27:57,146 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 14:27:57,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 872 SyntacticMatches, 11 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=221, Invalid=2431, Unknown=0, NotChecked=0, Total=2652 [2021-11-19 14:27:57,148 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 47 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:57,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 724 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:27:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 14:27:57,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-19 14:27:57,156 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) [2021-11-19 14:27:57,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2021-11-19 14:27:57,158 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 233 [2021-11-19 14:27:57,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:57,159 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2021-11-19 14:27:57,159 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) [2021-11-19 14:27:57,160 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2021-11-19 14:27:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-19 14:27:57,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:57,162 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] [2021-11-19 14:27:57,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:57,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:57,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:57,567 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:57,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:57,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1472716574, now seen corresponding path program 1 times [2021-11-19 14:27:57,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:57,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189205318] [2021-11-19 14:27:57,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:57,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:57,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:57,570 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:57,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:27:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:58,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-19 14:27:58,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:58,756 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 [2021-11-19 14:27:59,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:27:59,780 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 [2021-11-19 14:28:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-19 14:28:04,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:09,491 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 [2021-11-19 14:28:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-19 14:28:10,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:10,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189205318] [2021-11-19 14:28:10,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189205318] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:10,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1467590394] [2021-11-19 14:28:10,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:10,263 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:28:10,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:28:10,289 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:28:10,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-19 14:28:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:11,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:28:11,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:28:11,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:28:12,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1467590394] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:12,360 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:28:12,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [26, 20] total 47 [2021-11-19 14:28:12,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462780979] [2021-11-19 14:28:12,360 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:12,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:28:12,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:28:12,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1974, Unknown=0, NotChecked=0, Total=2162 [2021-11-19 14:28:12,363 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) [2021-11-19 14:28:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:12,479 INFO L93 Difference]: Finished difference Result 178 states and 207 transitions. [2021-11-19 14:28:12,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:28:12,480 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 [2021-11-19 14:28:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:12,482 INFO L225 Difference]: With dead ends: 178 [2021-11-19 14:28:12,482 INFO L226 Difference]: Without dead ends: 136 [2021-11-19 14:28:12,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 880 SyntacticMatches, 11 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=194, Invalid=2062, Unknown=0, NotChecked=0, Total=2256 [2021-11-19 14:28:12,484 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 6 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:12,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:28:12,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-19 14:28:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-11-19 14:28:12,493 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) [2021-11-19 14:28:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2021-11-19 14:28:12,495 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 235 [2021-11-19 14:28:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:12,496 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2021-11-19 14:28:12,496 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) [2021-11-19 14:28:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2021-11-19 14:28:12,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-19 14:28:12,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:12,499 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] [2021-11-19 14:28:12,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:12,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-11-19 14:28:12,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:12,905 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:28:12,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:12,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1551520894, now seen corresponding path program 1 times [2021-11-19 14:28:12,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:12,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733027873] [2021-11-19 14:28:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:12,908 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:12,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:12,909 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:12,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:28:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:14,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-19 14:28:14,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:14,155 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 [2021-11-19 14:28:15,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:28:15,246 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 [2021-11-19 14:28:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-19 14:28:19,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:25,309 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 [2021-11-19 14:28:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-11-19 14:28:26,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:26,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733027873] [2021-11-19 14:28:26,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733027873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:26,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1040937590] [2021-11-19 14:28:26,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:26,042 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:28:26,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:28:26,042 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:28:26,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-19 14:28:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:29,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:28:29,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:28:30,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:28:31,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1040937590] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:31,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516445542] [2021-11-19 14:28:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:31,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:28:31,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:28:31,353 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:28:31,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 14:28:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:32,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-19 14:28:32,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:32,880 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 [2021-11-19 14:28:33,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:28:33,771 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 [2021-11-19 14:28:39,216 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 208 proven. 9 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-19 14:28:39,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:57,479 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 [2021-11-19 14:28:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-11-19 14:28:58,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516445542] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:58,615 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:28:58,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 6, 6, 19, 16] total 68 [2021-11-19 14:28:58,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178061794] [2021-11-19 14:28:58,616 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:28:58,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-11-19 14:28:58,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-11-19 14:28:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=4264, Unknown=7, NotChecked=0, Total=4556 [2021-11-19 14:28:58,622 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) [2021-11-19 14:29:00,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:02,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:04,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:06,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:08,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:10,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:12,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:14,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:16,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:18,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:20,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:22,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:24,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:26,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:30:07,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:07,852 INFO L93 Difference]: Finished difference Result 300 states and 358 transitions. [2021-11-19 14:30:07,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-19 14:30:07,854 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 [2021-11-19 14:30:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:07,856 INFO L225 Difference]: With dead ends: 300 [2021-11-19 14:30:07,857 INFO L226 Difference]: Without dead ends: 204 [2021-11-19 14:30:07,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1455 GetRequests, 1336 SyntacticMatches, 25 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3009 ImplicationChecksByTransitivity, 67.0s TimeCoverageRelationStatistics Valid=577, Invalid=8530, Unknown=13, NotChecked=0, Total=9120 [2021-11-19 14:30:07,862 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 129 mSDsluCounter, 4233 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 32 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 4359 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 1114 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:07,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 4359 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 696 Invalid, 14 Unknown, 1114 Unchecked, 32.0s Time] [2021-11-19 14:30:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-19 14:30:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-11-19 14:30:07,880 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) [2021-11-19 14:30:07,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 239 transitions. [2021-11-19 14:30:07,882 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 239 transitions. Word has length 237 [2021-11-19 14:30:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:07,883 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 239 transitions. [2021-11-19 14:30:07,884 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) [2021-11-19 14:30:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 239 transitions. [2021-11-19 14:30:07,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-19 14:30:07,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:07,887 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] [2021-11-19 14:30:07,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:08,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:08,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:08,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:08,505 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:08,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:08,506 INFO L85 PathProgramCache]: Analyzing trace with hash -856871866, now seen corresponding path program 1 times [2021-11-19 14:30:08,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:08,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948783590] [2021-11-19 14:30:08,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:08,508 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:08,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:08,509 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:08,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:30:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:09,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:30:09,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-19 14:30:10,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-11-19 14:30:10,801 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:10,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948783590] [2021-11-19 14:30:10,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948783590] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:10,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:30:10,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-19 14:30:10,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334115572] [2021-11-19 14:30:10,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:10,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:30:10,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:10,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:30:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:30:10,803 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) [2021-11-19 14:30:10,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:10,974 INFO L93 Difference]: Finished difference Result 316 states and 375 transitions. [2021-11-19 14:30:10,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:30:10,975 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 [2021-11-19 14:30:10,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:10,978 INFO L225 Difference]: With dead ends: 316 [2021-11-19 14:30:10,978 INFO L226 Difference]: Without dead ends: 204 [2021-11-19 14:30:10,979 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 [2021-11-19 14:30:10,980 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 2 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:10,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 829 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:30:10,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-19 14:30:10,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 201. [2021-11-19 14:30:10,996 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) [2021-11-19 14:30:10,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-19 14:30:10,999 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 241 [2021-11-19 14:30:10,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:11,000 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-19 14:30:11,000 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) [2021-11-19 14:30:11,000 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-19 14:30:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-19 14:30:11,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:11,003 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] [2021-11-19 14:30:11,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:11,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:11,217 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1839564546, now seen corresponding path program 1 times [2021-11-19 14:30:11,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:11,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761607454] [2021-11-19 14:30:11,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:11,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:11,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:11,222 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:11,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:30:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:12,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-19 14:30:12,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:12,613 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 [2021-11-19 14:30:13,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:30:13,808 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 [2021-11-19 14:30:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 14:30:18,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:25,444 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 [2021-11-19 14:30:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-11-19 14:30:26,384 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:26,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761607454] [2021-11-19 14:30:26,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761607454] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:30:26,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [530776533] [2021-11-19 14:30:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:26,385 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:26,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:30:26,386 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:30:26,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-19 14:30:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:27,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:30:27,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-19 14:30:28,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-19 14:30:28,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [530776533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:30:28,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650202875] [2021-11-19 14:30:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:28,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:28,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:28,920 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:30:28,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-19 14:30:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:30,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:30:30,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-19 14:30:30,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-19 14:30:31,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650202875] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:30:31,088 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:30:31,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 7, 7, 7, 7] total 48 [2021-11-19 14:30:31,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502100695] [2021-11-19 14:30:31,089 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:30:31,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-19 14:30:31,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:31,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-19 14:30:31,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2065, Unknown=0, NotChecked=0, Total=2256 [2021-11-19 14:30:31,094 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) [2021-11-19 14:30:33,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:30:35,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:30:37,265 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 [] [2021-11-19 14:30:40,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:40,368 INFO L93 Difference]: Finished difference Result 360 states and 429 transitions. [2021-11-19 14:30:40,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-19 14:30:40,369 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 [2021-11-19 14:30:40,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:40,372 INFO L225 Difference]: With dead ends: 360 [2021-11-19 14:30:40,372 INFO L226 Difference]: Without dead ends: 227 [2021-11-19 14:30:40,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1454 GetRequests, 1386 SyntacticMatches, 14 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=258, Invalid=2822, Unknown=0, NotChecked=0, Total=3080 [2021-11-19 14:30:40,375 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 95 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 628 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:40,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 2900 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 228 Invalid, 3 Unknown, 628 Unchecked, 7.1s Time] [2021-11-19 14:30:40,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-19 14:30:40,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 207. [2021-11-19 14:30:40,392 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) [2021-11-19 14:30:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 240 transitions. [2021-11-19 14:30:40,395 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 240 transitions. Word has length 241 [2021-11-19 14:30:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:40,395 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 240 transitions. [2021-11-19 14:30:40,396 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) [2021-11-19 14:30:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 240 transitions. [2021-11-19 14:30:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-19 14:30:40,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:40,399 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] [2021-11-19 14:30:40,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:40,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:40,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:41,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:41,006 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:41,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1338501564, now seen corresponding path program 1 times [2021-11-19 14:30:41,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:41,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239728480] [2021-11-19 14:30:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:41,009 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:41,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:41,010 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:41,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:30:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:42,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-19 14:30:42,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:42,383 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 [2021-11-19 14:30:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:30:43,566 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 [2021-11-19 14:30:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 14:30:48,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:55,572 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 [2021-11-19 14:30:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-11-19 14:30:56,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:56,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239728480] [2021-11-19 14:30:56,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239728480] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:30:56,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1515772625] [2021-11-19 14:30:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:56,501 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:56,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:30:56,502 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:30:56,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-11-19 14:30:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:00,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:31:00,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:01,809 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:31:01,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:31:04,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1515772625] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:31:04,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707398764] [2021-11-19 14:31:04,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:04,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:31:04,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:31:04,409 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:31:04,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-19 14:31:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:05,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 14:31:05,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:06,040 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 [2021-11-19 14:31:07,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:31:07,140 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 [2021-11-19 14:31:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 5 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 14:31:09,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:27,694 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 [2021-11-19 14:31:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-11-19 14:31:28,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707398764] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:31:28,956 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:31:28,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 10, 10, 17, 15] total 73 [2021-11-19 14:31:28,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010931458] [2021-11-19 14:31:28,957 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:31:28,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-19 14:31:28,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:31:28,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-19 14:31:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=4913, Unknown=6, NotChecked=0, Total=5256 [2021-11-19 14:31:28,963 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) [2021-11-19 14:31:31,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:31:33,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:31:35,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:31:37,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:31:39,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:32:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:32:20,408 INFO L93 Difference]: Finished difference Result 380 states and 453 transitions. [2021-11-19 14:32:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-19 14:32:20,410 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 [2021-11-19 14:32:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:32:20,413 INFO L225 Difference]: With dead ends: 380 [2021-11-19 14:32:20,413 INFO L226 Difference]: Without dead ends: 246 [2021-11-19 14:32:20,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1479 GetRequests, 1356 SyntacticMatches, 24 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3211 ImplicationChecksByTransitivity, 66.8s TimeCoverageRelationStatistics Valid=700, Invalid=9388, Unknown=12, NotChecked=0, Total=10100 [2021-11-19 14:32:20,419 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 238 mSDsluCounter, 4239 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 89 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 668 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:32:20,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 4371 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 861 Invalid, 5 Unknown, 668 Unchecked, 14.7s Time] [2021-11-19 14:32:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-19 14:32:20,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 218. [2021-11-19 14:32:20,437 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) [2021-11-19 14:32:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 251 transitions. [2021-11-19 14:32:20,440 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 251 transitions. Word has length 241 [2021-11-19 14:32:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:32:20,440 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 251 transitions. [2021-11-19 14:32:20,441 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) [2021-11-19 14:32:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 251 transitions. [2021-11-19 14:32:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-19 14:32:20,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:20,444 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] [2021-11-19 14:32:20,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 14:32:20,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-11-19 14:32:20,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:32:21,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:32:21,066 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:32:21,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:21,066 INFO L85 PathProgramCache]: Analyzing trace with hash -557112702, now seen corresponding path program 1 times [2021-11-19 14:32:21,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:21,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950605480] [2021-11-19 14:32:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:21,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:21,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:21,069 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:21,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 14:32:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:22,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-19 14:32:22,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:22,375 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 [2021-11-19 14:32:23,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:32:23,487 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 [2021-11-19 14:32:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 207 proven. 4 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-11-19 14:32:28,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:35,070 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 [2021-11-19 14:32:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2021-11-19 14:32:35,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:32:35,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950605480] [2021-11-19 14:32:35,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950605480] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:32:35,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [253067974] [2021-11-19 14:32:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:35,967 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:32:35,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:32:35,968 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:32:35,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2021-11-19 14:32:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:39,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:32:39,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:32:42,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-19 14:32:48,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [253067974] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:32:48,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729103391] [2021-11-19 14:32:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:48,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:32:48,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:32:48,376 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:32:48,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-19 14:32:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:49,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-19 14:32:49,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:50,484 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-19 14:32:50,484 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 [2021-11-19 14:32:55,293 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 [2021-11-19 14:33:00,210 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 [2021-11-19 14:33:00,515 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 139 proven. 33 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-19 14:33:00,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:05,328 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 [2021-11-19 14:33:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-19 14:33:10,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729103391] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:33:10,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:33:10,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20, 18, 18, 20, 17] total 107 [2021-11-19 14:33:10,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137733468] [2021-11-19 14:33:10,117 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:33:10,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2021-11-19 14:33:10,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:10,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2021-11-19 14:33:10,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=654, Invalid=10688, Unknown=0, NotChecked=0, Total=11342 [2021-11-19 14:33:10,125 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) [2021-11-19 14:33:12,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:14,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:16,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:18,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:20,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:22,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:24,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:26,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:28,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:30,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:32,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:34,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:36,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:38,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:40,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:42,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:44,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:46,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:48,455 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 [] [2021-11-19 14:33:55,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:55,489 INFO L93 Difference]: Finished difference Result 252 states and 285 transitions. [2021-11-19 14:33:55,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-19 14:33:55,491 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 [2021-11-19 14:33:55,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:55,491 INFO L225 Difference]: With dead ends: 252 [2021-11-19 14:33:55,491 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:33:55,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1500 GetRequests, 1369 SyntacticMatches, 16 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5033 ImplicationChecksByTransitivity, 37.3s TimeCoverageRelationStatistics Valid=788, Invalid=12784, Unknown=0, NotChecked=0, Total=13572 [2021-11-19 14:33:55,495 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 68 mSDsluCounter, 3855 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 5 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 569 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:55,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 3929 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 295 Invalid, 19 Unknown, 569 Unchecked, 39.6s Time] [2021-11-19 14:33:55,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:33:55,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:33:55,496 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) [2021-11-19 14:33:55,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:33:55,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 249 [2021-11-19 14:33:55,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:55,497 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:33:55,498 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) [2021-11-19 14:33:55,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:33:55,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:33:55,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-19 14:33:55,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 14:33:55,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:55,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:55,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-11-19 14:33:56,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:33:56,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:34:01,858 WARN L227 SmtUtils]: Spent 5.34s 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) [2021-11-19 14:34:02,841 INFO L861 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2021-11-19 14:34:02,841 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-11-19 14:34:02,842 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-11-19 14:34:02,842 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-11-19 14:34:02,842 INFO L861 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: true [2021-11-19 14:34:02,842 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptr_explicitFINAL(lines 5791 5794) no Hoare annotation was computed. [2021-11-19 14:34:02,842 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))))))) [2021-11-19 14:34:02,842 INFO L858 garLoopResultBuilder]: For program point L5793-1(line 5793) no Hoare annotation was computed. [2021-11-19 14:34:02,842 INFO L861 garLoopResultBuilder]: At program point aws_atomic_load_ptr_explicitENTRY(lines 5791 5794) the Hoare annotation is: true [2021-11-19 14:34:02,842 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptr_explicitEXIT(lines 5791 5794) no Hoare annotation was computed. [2021-11-19 14:34:02,843 INFO L858 garLoopResultBuilder]: For program point L7069-2(lines 7061 7074) no Hoare annotation was computed. [2021-11-19 14:34:02,843 INFO L858 garLoopResultBuilder]: For program point aws_mem_releaseEXIT(lines 7061 7074) no Hoare annotation was computed. [2021-11-19 14:34:02,843 INFO L858 garLoopResultBuilder]: For program point L7069(lines 7069 7073) no Hoare annotation was computed. [2021-11-19 14:34:02,843 INFO L861 garLoopResultBuilder]: At program point L7062(lines 7062 7064) the Hoare annotation is: true [2021-11-19 14:34:02,843 INFO L861 garLoopResultBuilder]: At program point aws_mem_releaseENTRY(lines 7061 7074) the Hoare annotation is: true [2021-11-19 14:34:02,843 INFO L858 garLoopResultBuilder]: For program point L7065-1(lines 7065 7067) no Hoare annotation was computed. [2021-11-19 14:34:02,843 INFO L861 garLoopResultBuilder]: At program point L7065(lines 7065 7067) the Hoare annotation is: true [2021-11-19 14:34:02,843 INFO L858 garLoopResultBuilder]: For program point L7062-1(lines 7062 7064) no Hoare annotation was computed. [2021-11-19 14:34:02,843 INFO L861 garLoopResultBuilder]: At program point aws_ring_buffer_check_atomic_ptrENTRY(lines 6039 6045) the Hoare annotation is: true [2021-11-19 14:34:02,843 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_check_atomic_ptrEXIT(lines 6039 6045) no Hoare annotation was computed. [2021-11-19 14:34:02,844 INFO L858 garLoopResultBuilder]: For program point L6044-2(line 6044) no Hoare annotation was computed. [2021-11-19 14:34:02,844 INFO L858 garLoopResultBuilder]: For program point L6044(line 6044) no Hoare annotation was computed. [2021-11-19 14:34:02,844 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_check_atomic_ptrFINAL(lines 6039 6045) no Hoare annotation was computed. [2021-11-19 14:34:02,844 INFO L861 garLoopResultBuilder]: At program point aws_atomic_store_ptrENTRY(lines 5638 5641) the Hoare annotation is: true [2021-11-19 14:34:02,844 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptrEXIT(lines 5638 5641) no Hoare annotation was computed. [2021-11-19 14:34:02,844 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptrFINAL(lines 5638 5641) no Hoare annotation was computed. [2021-11-19 14:34:02,844 INFO L861 garLoopResultBuilder]: At program point L5640(line 5640) the Hoare annotation is: true [2021-11-19 14:34:02,844 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-19 14:34:02,844 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-19 14:34:02,844 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-19 14:34:02,845 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))))) [2021-11-19 14:34:02,845 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptr_explicitFINAL(lines 5807 5810) no Hoare annotation was computed. [2021-11-19 14:34:02,845 INFO L858 garLoopResultBuilder]: For program point L5809-1(line 5809) no Hoare annotation was computed. [2021-11-19 14:34:02,845 INFO L861 garLoopResultBuilder]: At program point aws_atomic_store_ptr_explicitENTRY(lines 5807 5810) the Hoare annotation is: true [2021-11-19 14:34:02,845 INFO L858 garLoopResultBuilder]: For program point aws_atomic_store_ptr_explicitEXIT(lines 5807 5810) no Hoare annotation was computed. [2021-11-19 14:34:02,845 INFO L858 garLoopResultBuilder]: For program point aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2021-11-19 14:34:02,845 INFO L858 garLoopResultBuilder]: For program point L5746(lines 5746 5759) no Hoare annotation was computed. [2021-11-19 14:34:02,846 INFO L858 garLoopResultBuilder]: For program point aws_atomic_priv_xlate_orderEXIT(lines 5745 5760) no Hoare annotation was computed. [2021-11-19 14:34:02,846 INFO L858 garLoopResultBuilder]: For program point aws_atomic_priv_xlate_orderFINAL(lines 5745 5760) no Hoare annotation was computed. [2021-11-19 14:34:02,846 INFO L861 garLoopResultBuilder]: At program point aws_atomic_priv_xlate_orderENTRY(lines 5745 5760) the Hoare annotation is: true [2021-11-19 14:34:02,846 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-11-19 14:34:02,846 INFO L858 garLoopResultBuilder]: For program point L5755(line 5755) no Hoare annotation was computed. [2021-11-19 14:34:02,846 INFO L858 garLoopResultBuilder]: For program point L5757(line 5757) no Hoare annotation was computed. [2021-11-19 14:34:02,847 INFO L858 garLoopResultBuilder]: For program point L5751(line 5751) no Hoare annotation was computed. [2021-11-19 14:34:02,847 INFO L858 garLoopResultBuilder]: For program point L5753(line 5753) no Hoare annotation was computed. [2021-11-19 14:34:02,847 INFO L858 garLoopResultBuilder]: For program point L5747(line 5747) no Hoare annotation was computed. [2021-11-19 14:34:02,847 INFO L858 garLoopResultBuilder]: For program point L5749(line 5749) no Hoare annotation was computed. [2021-11-19 14:34:02,847 INFO L858 garLoopResultBuilder]: For program point L233(line 233) no Hoare annotation was computed. [2021-11-19 14:34:02,848 INFO L861 garLoopResultBuilder]: At program point aws_atomic_load_ptrENTRY(lines 5622 5625) the Hoare annotation is: true [2021-11-19 14:34:02,848 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptrEXIT(lines 5622 5625) no Hoare annotation was computed. [2021-11-19 14:34:02,848 INFO L858 garLoopResultBuilder]: For program point L5624-1(line 5624) no Hoare annotation was computed. [2021-11-19 14:34:02,848 INFO L858 garLoopResultBuilder]: For program point aws_atomic_load_ptrFINAL(lines 5622 5625) no Hoare annotation was computed. [2021-11-19 14:34:02,848 INFO L861 garLoopResultBuilder]: At program point L5624(line 5624) the Hoare annotation is: true [2021-11-19 14:34:02,848 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:34:02,849 INFO L861 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-11-19 14:34:02,849 INFO L861 garLoopResultBuilder]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2021-11-19 14:34:02,849 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:34:02,849 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-19 14:34:02,849 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-19 14:34:02,850 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-19 14:34:02,850 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-19 14:34:02,850 INFO L858 garLoopResultBuilder]: For program point L6076-2(line 6076) no Hoare annotation was computed. [2021-11-19 14:34:02,850 INFO L861 garLoopResultBuilder]: At program point aws_ring_buffer_is_validENTRY(lines 6062 6081) the Hoare annotation is: true [2021-11-19 14:34:02,850 INFO L858 garLoopResultBuilder]: For program point L6076(line 6076) no Hoare annotation was computed. [2021-11-19 14:34:02,851 INFO L858 garLoopResultBuilder]: For program point L6072-1(line 6072) no Hoare annotation was computed. [2021-11-19 14:34:02,851 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$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse2 (select .cse3 (_ bv32 64)))) (or (= (_ bv0 64) .cse2) (not (= (select .cse3 (_ bv8 64)) .cse2))))))) [2021-11-19 14:34:02,851 INFO L854 garLoopResultBuilder]: At program point L6066(line 6066) the Hoare annotation is: (or (and (= |aws_ring_buffer_is_valid_#in~ring_buf.offset| aws_ring_buffer_is_valid_~ring_buf.offset) (= (_ bv0 64) aws_ring_buffer_is_valid_~head~1.base) (= |aws_ring_buffer_is_valid_#in~ring_buf.base| aws_ring_buffer_is_valid_~ring_buf.base)) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse1 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse0 (select .cse1 (_ bv32 64)))) (or (= (_ bv0 64) .cse0) (not (= (select .cse1 (_ bv8 64)) .cse0))))))) [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6066-1(line 6066) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6077-3(line 6077) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6077(line 6077) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6077-1(line 6077) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6077-6(lines 6077 6080) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6077-5(line 6077) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_is_validEXIT(lines 6062 6081) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L854 garLoopResultBuilder]: At program point L6069(line 6069) the Hoare annotation is: (or (and (= |aws_ring_buffer_is_valid_#in~ring_buf.offset| aws_ring_buffer_is_valid_~ring_buf.offset) (= (_ bv0 64) aws_ring_buffer_is_valid_~head~1.base) (= (_ bv0 64) aws_ring_buffer_is_valid_~tail~1.base) (= |aws_ring_buffer_is_valid_#in~ring_buf.base| aws_ring_buffer_is_valid_~ring_buf.base)) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse1 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse0 (select .cse1 (_ bv32 64)))) (or (= (_ bv0 64) .cse0) (not (= (select .cse1 (_ bv8 64)) .cse0))))))) [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6077-8(lines 6077 6080) no Hoare annotation was computed. [2021-11-19 14:34:02,852 INFO L858 garLoopResultBuilder]: For program point L6069-1(line 6069) no Hoare annotation was computed. [2021-11-19 14:34:02,853 INFO L854 garLoopResultBuilder]: At program point L6065(line 6065) the Hoare annotation is: (or (and (= |aws_ring_buffer_is_valid_#in~ring_buf.offset| aws_ring_buffer_is_valid_~ring_buf.offset) (= |aws_ring_buffer_is_valid_#in~ring_buf.base| aws_ring_buffer_is_valid_~ring_buf.base)) (forall ((|v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155| (_ BitVec 64))) (let ((.cse1 (select |#memory_$Pointer$.base| |v_ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base_BEFORE_CALL_155|))) (let ((.cse0 (select .cse1 (_ bv32 64)))) (or (= (_ bv0 64) .cse0) (not (= (select .cse1 (_ bv8 64)) .cse0))))))) [2021-11-19 14:34:02,853 INFO L858 garLoopResultBuilder]: For program point L6065-1(line 6065) no Hoare annotation was computed. [2021-11-19 14:34:02,853 INFO L858 garLoopResultBuilder]: For program point aws_ring_buffer_is_validFINAL(lines 6062 6081) no Hoare annotation was computed. [2021-11-19 14:34:02,853 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-11-19 14:34:02,853 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-11-19 14:34:02,853 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-11-19 14:34:02,854 INFO L854 garLoopResultBuilder]: At program point L9218-1(line 9218) the Hoare annotation is: false [2021-11-19 14:34:02,854 INFO L858 garLoopResultBuilder]: For program point L9218-2(lines 9218 9220) no Hoare annotation was computed. [2021-11-19 14:34:02,854 INFO L854 garLoopResultBuilder]: At program point L6621-1(line 6621) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-19 14:34:02,854 INFO L854 garLoopResultBuilder]: At program point L6621(line 6621) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-19 14:34:02,854 INFO L854 garLoopResultBuilder]: At program point L9206-1(line 9206) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) (= (select .cse0 (bvadd (_ bv8 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|)) (select .cse0 (bvadd |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset| (_ bv32 64))))) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 8) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_#t~ret1351#1|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-19 14:34:02,855 INFO L858 garLoopResultBuilder]: For program point L9206-2(line 9206) no Hoare annotation was computed. [2021-11-19 14:34:02,855 INFO L858 garLoopResultBuilder]: For program point L6617-1(line 6617) no Hoare annotation was computed. [2021-11-19 14:34:02,855 INFO L854 garLoopResultBuilder]: At program point L6617(line 6617) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-19 14:34:02,855 INFO L854 garLoopResultBuilder]: At program point L9206(line 9206) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$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|))) [2021-11-19 14:34:02,856 INFO L858 garLoopResultBuilder]: For program point L8620(lines 8620 8622) no Hoare annotation was computed. [2021-11-19 14:34:02,856 INFO L858 garLoopResultBuilder]: For program point L8624(line 8624) no Hoare annotation was computed. [2021-11-19 14:34:02,856 INFO L858 garLoopResultBuilder]: For program point L8624-1(line 8624) no Hoare annotation was computed. [2021-11-19 14:34:02,856 INFO L854 garLoopResultBuilder]: At program point L8624-2(lines 8618 8625) the Hoare annotation is: false [2021-11-19 14:34:02,856 INFO L858 garLoopResultBuilder]: For program point L6622(line 6622) no Hoare annotation was computed. [2021-11-19 14:34:02,856 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 14:34:02,856 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:34:02,857 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|))) [2021-11-19 14:34:02,857 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:34:02,857 INFO L854 garLoopResultBuilder]: At program point L9215(lines 9215 9217) the Hoare annotation is: false [2021-11-19 14:34:02,857 INFO L858 garLoopResultBuilder]: For program point L9215-1(lines 9215 9217) no Hoare annotation was computed. [2021-11-19 14:34:02,857 INFO L858 garLoopResultBuilder]: For program point L6618-1(line 6618) no Hoare annotation was computed. [2021-11-19 14:34:02,858 INFO L854 garLoopResultBuilder]: At program point L8621(line 8621) the Hoare annotation is: false [2021-11-19 14:34:02,858 INFO L858 garLoopResultBuilder]: For program point L8621-1(line 8621) no Hoare annotation was computed. [2021-11-19 14:34:02,858 INFO L861 garLoopResultBuilder]: At program point L9228(line 9228) the Hoare annotation is: true [2021-11-19 14:34:02,858 INFO L858 garLoopResultBuilder]: For program point L9199(lines 9199 9227) no Hoare annotation was computed. [2021-11-19 14:34:02,858 INFO L854 garLoopResultBuilder]: At program point L9224(lines 9224 9226) the Hoare annotation is: false [2021-11-19 14:34:02,859 INFO L858 garLoopResultBuilder]: For program point L9224-1(lines 9224 9226) no Hoare annotation was computed. [2021-11-19 14:34:02,859 INFO L858 garLoopResultBuilder]: For program point L6623-1(line 6623) no Hoare annotation was computed. [2021-11-19 14:34:02,859 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:34:02,859 INFO L854 garLoopResultBuilder]: At program point L6623(line 6623) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-19 14:34:02,859 INFO L854 garLoopResultBuilder]: At program point L9212(lines 9212 9214) the Hoare annotation is: false [2021-11-19 14:34:02,860 INFO L858 garLoopResultBuilder]: For program point L9212-1(lines 9212 9214) no Hoare annotation was computed. [2021-11-19 14:34:02,860 INFO L858 garLoopResultBuilder]: For program point L6619-1(line 6619) no Hoare annotation was computed. [2021-11-19 14:34:02,860 INFO L854 garLoopResultBuilder]: At program point L6619(line 6619) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-19 14:34:02,860 INFO L858 garLoopResultBuilder]: For program point L8618(lines 8618 8625) no Hoare annotation was computed. [2021-11-19 14:34:02,860 INFO L854 garLoopResultBuilder]: At program point L9221(line 9221) the Hoare annotation is: false [2021-11-19 14:34:02,861 INFO L854 garLoopResultBuilder]: At program point L9221-1(line 9221) the Hoare annotation is: false [2021-11-19 14:34:02,861 INFO L858 garLoopResultBuilder]: For program point L9221-2(lines 9221 9223) no Hoare annotation was computed. [2021-11-19 14:34:02,861 INFO L858 garLoopResultBuilder]: For program point L6624-1(line 6624) no Hoare annotation was computed. [2021-11-19 14:34:02,861 INFO L854 garLoopResultBuilder]: At program point L6624(line 6624) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base|) (bvadd |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| (_ bv8 64))))) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.offset| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.offset|) (= |ULTIMATE.start_ensure_ring_buffer_has_allocated_members_~ring_buf#1.base| |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_aws_ring_buffer_clean_up_harness_~#ring_buf~0#1.base|))) [2021-11-19 14:34:02,862 INFO L858 garLoopResultBuilder]: For program point L6620-1(line 6620) no Hoare annotation was computed. [2021-11-19 14:34:02,862 INFO L854 garLoopResultBuilder]: At program point L6620(line 6620) the Hoare annotation is: (and (not (= (_ bv0 64) (select (select |#memory_$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|))) [2021-11-19 14:34:02,862 INFO L858 garLoopResultBuilder]: For program point L6616(lines 6616 6626) no Hoare annotation was computed. [2021-11-19 14:34:02,862 INFO L854 garLoopResultBuilder]: At program point L8619(line 8619) the Hoare annotation is: false [2021-11-19 14:34:02,862 INFO L854 garLoopResultBuilder]: At program point L8619-1(line 8619) the Hoare annotation is: false [2021-11-19 14:34:02,863 INFO L854 garLoopResultBuilder]: At program point L9218(line 9218) the Hoare annotation is: false [2021-11-19 14:34:02,863 INFO L858 garLoopResultBuilder]: For program point L8619-2(line 8619) no Hoare annotation was computed. [2021-11-19 14:34:02,863 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-19 14:34:02,863 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-19 14:34:02,863 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-19 14:34:02,864 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-19 14:34:02,864 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-19 14:34:02,864 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-19 14:34:02,868 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] [2021-11-19 14:34:02,870 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:34:02,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:34:02 BoogieIcfgContainer [2021-11-19 14:34:02,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:34:02,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:34:02,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:34:02,880 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:34:02,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:51" (3/4) ... [2021-11-19 14:34:02,884 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:34:02,892 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-19 14:34:02,892 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_load_ptr [2021-11-19 14:34:02,892 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-11-19 14:34:02,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_load_ptr_explicit [2021-11-19 14:34:02,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_release [2021-11-19 14:34:02,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-19 14:34:02,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_ring_buffer_is_valid [2021-11-19 14:34:02,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-11-19 14:34:02,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_ring_buffer_check_atomic_ptr [2021-11-19 14:34:02,894 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_store_ptr [2021-11-19 14:34:02,894 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-19 14:34:02,894 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-19 14:34:02,894 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_store_ptr_explicit [2021-11-19 14:34:02,895 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_atomic_priv_xlate_order [2021-11-19 14:34:02,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2021-11-19 14:34:02,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2021-11-19 14:34:02,919 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-19 14:34:02,922 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-19 14:34:02,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-19 14:34:02,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-19 14:34:02,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 14:34:02,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:34:04,111 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:34:04,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:34:04,112 INFO L158 Benchmark]: Toolchain (without parser) took 442035.19ms. Allocated memory was 77.6MB in the beginning and 367.0MB in the end (delta: 289.4MB). Free memory was 49.5MB in the beginning and 151.1MB in the end (delta: -101.6MB). Peak memory consumption was 281.7MB. Max. memory is 16.1GB. [2021-11-19 14:34:04,112 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory was 57.6MB in the beginning and 57.6MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:34:04,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3891.93ms. Allocated memory was 77.6MB in the beginning and 130.0MB in the end (delta: 52.4MB). Free memory was 49.2MB in the beginning and 57.7MB in the end (delta: -8.5MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2021-11-19 14:34:04,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 337.26ms. Allocated memory is still 130.0MB. Free memory was 57.7MB in the beginning and 47.5MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:34:04,113 INFO L158 Benchmark]: Boogie Preprocessor took 190.93ms. Allocated memory was 130.0MB in the beginning and 195.0MB in the end (delta: 65.0MB). Free memory was 47.5MB in the beginning and 138.3MB in the end (delta: -90.7MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-11-19 14:34:04,114 INFO L158 Benchmark]: RCFGBuilder took 4589.49ms. Allocated memory is still 195.0MB. Free memory was 137.2MB in the beginning and 83.1MB in the end (delta: 54.1MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2021-11-19 14:34:04,114 INFO L158 Benchmark]: TraceAbstraction took 431786.31ms. Allocated memory was 195.0MB in the beginning and 367.0MB in the end (delta: 172.0MB). Free memory was 83.1MB in the beginning and 129.1MB in the end (delta: -46.0MB). Peak memory consumption was 124.9MB. Max. memory is 16.1GB. [2021-11-19 14:34:04,115 INFO L158 Benchmark]: Witness Printer took 1231.77ms. Allocated memory is still 367.0MB. Free memory was 129.1MB in the beginning and 151.1MB in the end (delta: -22.0MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2021-11-19 14:34:04,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory was 57.6MB in the beginning and 57.6MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3891.93ms. Allocated memory was 77.6MB in the beginning and 130.0MB in the end (delta: 52.4MB). Free memory was 49.2MB in the beginning and 57.7MB in the end (delta: -8.5MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 337.26ms. Allocated memory is still 130.0MB. Free memory was 57.7MB in the beginning and 47.5MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 190.93ms. Allocated memory was 130.0MB in the beginning and 195.0MB in the end (delta: 65.0MB). Free memory was 47.5MB in the beginning and 138.3MB in the end (delta: -90.7MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * RCFGBuilder took 4589.49ms. Allocated memory is still 195.0MB. Free memory was 137.2MB in the beginning and 83.1MB in the end (delta: 54.1MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. * TraceAbstraction took 431786.31ms. Allocated memory was 195.0MB in the beginning and 367.0MB in the end (delta: 172.0MB). Free memory was 83.1MB in the beginning and 129.1MB in the end (delta: -46.0MB). Peak memory consumption was 124.9MB. Max. memory is 16.1GB. * Witness Printer took 1231.77ms. Allocated memory is still 367.0MB. Free memory was 129.1MB in the beginning and 151.1MB in the end (delta: -22.0MB). Peak memory consumption was 73.4MB. 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: 431.7s, OverallIterations: 20, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 179.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 41 mSolverCounterUnknown, 790 SdHoareTripleChecker+Valid, 95.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 743 mSDsluCounter, 27813 SdHoareTripleChecker+Invalid, 93.0s 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, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12508 GetRequests, 11762 SyntacticMatches, 112 SemanticMatches, 634 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15099 ImplicationChecksByTransitivity, 205.6s 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, 6.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.6s SsaConstructionTime, 31.9s SatisfiabilityAnalysisTime, 202.2s InterpolantComputationTime, 6211 NumberOfCodeBlocks, 6211 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 12360 ConstructedInterpolants, 1172 QuantifiedInterpolants, 44399 SizeOfPredicates, 322 NumberOfNonLiveVariables, 53354 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! [2021-11-19 14:34:04,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6bce61b-f690-4052-89fa-9e69ef05bec7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE