./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:43:46,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:43:46,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:43:47,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:43:47,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:43:47,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:43:47,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:43:47,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:43:47,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:43:47,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:43:47,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:43:47,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:43:47,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:43:47,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:43:47,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:43:47,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:43:47,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:43:47,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:43:47,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:43:47,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:43:47,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:43:47,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:43:47,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:43:47,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:43:47,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:43:47,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:43:47,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:43:47,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:43:47,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:43:47,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:43:47,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:43:47,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:43:47,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:43:47,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:43:47,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:43:47,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:43:47,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:43:47,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:43:47,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:43:47,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:43:47,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:43:47,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:43:47,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:43:47,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:43:47,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:43:47,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:43:47,168 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:43:47,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:43:47,169 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:43:47,169 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:43:47,177 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:43:47,178 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:43:47,179 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:43:47,180 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:43:47,180 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:43:47,180 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:43:47,180 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:43:47,181 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:43:47,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:43:47,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:43:47,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:43:47,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:43:47,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:43:47,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:43:47,183 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:43:47,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:43:47,184 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:43:47,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:43:47,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:43:47,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:43:47,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:43:47,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:43:47,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:43:47,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:43:47,188 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:43:47,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:43:47,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:43:47,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:43:47,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:43:47,189 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-19 15:43:47,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:43:47,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:43:47,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:43:47,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:43:47,603 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:43:47,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-19 15:43:47,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/3e9e8ae15/bc217474dbfb423892a84bbb3ce3569d/FLAGeb6dcd5ae [2021-11-19 15:43:49,004 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:43:49,006 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-19 15:43:49,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/3e9e8ae15/bc217474dbfb423892a84bbb3ce3569d/FLAGeb6dcd5ae [2021-11-19 15:43:49,248 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/3e9e8ae15/bc217474dbfb423892a84bbb3ce3569d [2021-11-19 15:43:49,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:43:49,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:43:49,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:43:49,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:43:49,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:43:49,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:49" (1/1) ... [2021-11-19 15:43:49,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da33788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:49, skipping insertion in model container [2021-11-19 15:43:49,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:49" (1/1) ... [2021-11-19 15:43:49,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:43:49,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:43:49,899 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-19 15:43:49,910 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-19 15:43:49,946 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:43:49,957 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:43:51,256 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,263 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,264 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,265 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,266 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,289 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,290 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,297 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,299 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:51,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:43:51,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:43:51,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:43:51,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:43:51,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:43:51,886 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:43:51,887 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:43:51,888 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:43:51,889 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:43:51,890 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:43:52,140 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:43:52,266 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:52,267 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:52,398 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:43:52,538 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 15:43:52,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37cbcb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:52, skipping insertion in model container [2021-11-19 15:43:52,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:43:52,542 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:43:52,545 INFO L158 Benchmark]: Toolchain (without parser) took 3289.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 68.2MB in the beginning and 62.7MB in the end (delta: 5.5MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2021-11-19 15:43:52,546 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 98.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:43:52,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3286.51ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 67.9MB in the beginning and 62.7MB in the end (delta: 5.2MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2021-11-19 15:43:52,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 98.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3286.51ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 67.9MB in the beginning and 62.7MB in the end (delta: 5.2MB). Peak memory consumption was 32.1MB. 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:43:55,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:43:55,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:43:55,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:43:55,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:43:55,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:43:55,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:43:55,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:43:55,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:43:55,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:43:55,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:43:55,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:43:55,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:43:55,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:43:55,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:43:55,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:43:55,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:43:55,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:43:55,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:43:55,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:43:55,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:43:55,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:43:55,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:43:55,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:43:55,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:43:55,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:43:55,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:43:55,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:43:55,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:43:55,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:43:55,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:43:55,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:43:55,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:43:55,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:43:55,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:43:55,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:43:55,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:43:55,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:43:55,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:43:55,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:43:55,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:43:55,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:43:55,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:43:55,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:43:55,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:43:55,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:43:55,751 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:43:55,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:43:55,752 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:43:55,752 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:43:55,753 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:43:55,753 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:43:55,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:43:55,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:43:55,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:43:55,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:43:55,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:43:55,758 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:43:55,758 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:43:55,759 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:43:55,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:43:55,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:43:55,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:43:55,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:43:55,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:43:55,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:43:55,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:43:55,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:43:55,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:43:55,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:43:55,762 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:43:55,762 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:43:55,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:43:55,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:43:55,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:43:55,764 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-19 15:43:56,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:43:56,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:43:56,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:43:56,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:43:56,331 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:43:56,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-19 15:43:56,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/5ce11873a/bd26785bcdd048f5bc870d3801f59b4d/FLAG2d8d0a818 [2021-11-19 15:43:57,529 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:43:57,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-19 15:43:57,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/5ce11873a/bd26785bcdd048f5bc870d3801f59b4d/FLAG2d8d0a818 [2021-11-19 15:43:57,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/data/5ce11873a/bd26785bcdd048f5bc870d3801f59b4d [2021-11-19 15:43:57,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:43:57,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:43:57,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:43:57,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:43:57,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:43:57,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:57" (1/1) ... [2021-11-19 15:43:57,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4632e3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:43:57, skipping insertion in model container [2021-11-19 15:43:57,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:43:57" (1/1) ... [2021-11-19 15:43:57,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:43:58,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:43:58,472 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-19 15:43:58,497 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-19 15:43:58,554 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:43:58,563 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:43:59,878 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,879 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,880 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,881 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,883 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,908 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,909 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,912 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:43:59,913 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:00,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:44:00,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:44:00,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:44:00,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:44:00,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:44:00,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:44:00,631 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:44:00,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:44:00,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:44:00,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:44:00,926 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:44:01,114 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,116 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,292 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:44:01,385 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:44:01,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:44:01,453 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-19 15:44:01,453 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-19 15:44:01,455 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:44:01,456 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:44:01,498 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,499 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,499 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,500 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,501 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,510 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,510 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,512 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,513 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:44:01,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:44:01,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:44:01,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:44:01,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:44:01,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:44:01,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:44:01,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:44:01,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:44:01,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:44:01,684 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:44:01,814 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,814 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:01,894 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:44:01,964 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:44:01,997 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-19 15:44:01,998 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_281409c5-2f91-4d54-a6f1-1e94fa0af52f/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-19 15:44:02,000 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:44:02,001 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:44:02,082 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,088 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,088 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,089 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,090 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,097 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,098 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,099 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,100 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:44:02,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:44:02,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:44:02,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:44:02,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:44:02,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:44:02,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:44:02,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:44:02,146 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:44:02,147 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:44:02,174 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:44:02,344 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,346 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:44:02,481 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:44:02,966 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:44:02,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02 WrapperNode [2021-11-19 15:44:02,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:44:02,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:44:02,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:44:02,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:44:02,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,289 INFO L137 Inliner]: procedures = 712, calls = 2739, calls flagged for inlining = 58, calls inlined = 6, statements flattened = 788 [2021-11-19 15:44:03,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:44:03,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:44:03,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:44:03,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:44:03,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:44:03,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:44:03,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:44:03,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:44:03,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (1/1) ... [2021-11-19 15:44:03,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:44:03,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:44:03,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:44:03,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:44:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-19 15:44:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-19 15:44:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:44:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 15:44:03,605 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 15:44:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:44:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:44:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-19 15:44:03,608 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-19 15:44:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-19 15:44:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:44:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:44:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 15:44:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 15:44:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 15:44:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 15:44:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:44:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:44:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:44:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:44:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:44:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:44:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:44:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:44:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:44:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 15:44:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 15:44:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:44:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:44:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2021-11-19 15:44:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2021-11-19 15:44:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:44:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:44:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-19 15:44:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-19 15:44:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-19 15:44:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:44:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:44:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-19 15:44:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-19 15:44:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:44:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-19 15:44:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-19 15:44:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:44:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:44:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:44:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2021-11-19 15:44:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2021-11-19 15:44:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-19 15:44:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-19 15:44:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-19 15:44:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-19 15:44:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-19 15:44:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-19 15:44:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-19 15:44:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 15:44:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 15:44:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:44:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:44:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:44:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:44:04,103 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:44:04,105 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:44:04,589 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2021-11-19 15:44:10,477 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:44:10,487 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:44:10,487 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 15:44:10,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:44:10 BoogieIcfgContainer [2021-11-19 15:44:10,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:44:10,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:44:10,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:44:10,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:44:10,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:43:57" (1/3) ... [2021-11-19 15:44:10,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d413ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:44:10, skipping insertion in model container [2021-11-19 15:44:10,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:44:02" (2/3) ... [2021-11-19 15:44:10,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d413ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:44:10, skipping insertion in model container [2021-11-19 15:44:10,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:44:10" (3/3) ... [2021-11-19 15:44:10,500 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_array_harness.i [2021-11-19 15:44:10,507 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:44:10,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:44:10,570 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:44:10,577 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 15:44:10,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:44:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 82 states have (on average 1.170731707317073) internal successors, (96), 82 states have internal predecessors, (96), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-19 15:44:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 15:44:10,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:10,613 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:44:10,614 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:44:10,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:10,621 INFO L85 PathProgramCache]: Analyzing trace with hash 984437086, now seen corresponding path program 1 times [2021-11-19 15:44:10,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:10,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748788262] [2021-11-19 15:44:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:10,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:10,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:10,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:10,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:44:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:11,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 15:44:11,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:12,169 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 15:44:12,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 15:44:12,494 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:12,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748788262] [2021-11-19 15:44:12,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748788262] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:44:12,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:44:12,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 15:44:12,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825636498] [2021-11-19 15:44:12,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:12,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 15:44:12,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 15:44:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:44:12,566 INFO L87 Difference]: Start difference. First operand has 132 states, 82 states have (on average 1.170731707317073) internal successors, (96), 82 states have internal predecessors, (96), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:44:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:12,635 INFO L93 Difference]: Finished difference Result 258 states and 335 transitions. [2021-11-19 15:44:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 15:44:12,638 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 70 [2021-11-19 15:44:12,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:12,652 INFO L225 Difference]: With dead ends: 258 [2021-11-19 15:44:12,652 INFO L226 Difference]: Without dead ends: 126 [2021-11-19 15:44:12,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 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 15:44:12,662 INFO L933 BasicCegarLoop]: 158 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, 158 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 15:44:12,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:44:12,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-19 15:44:12,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-11-19 15:44:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 76 states have (on average 1.144736842105263) internal successors, (87), 77 states have internal predecessors, (87), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-19 15:44:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2021-11-19 15:44:12,732 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 70 [2021-11-19 15:44:12,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:12,734 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2021-11-19 15:44:12,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:44:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2021-11-19 15:44:12,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 15:44:12,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:12,740 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:44:12,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:12,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:12,968 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:44:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash 663113824, now seen corresponding path program 1 times [2021-11-19 15:44:12,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:12,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315540390] [2021-11-19 15:44:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:12,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:12,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:12,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:44:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:14,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:44:14,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-19 15:44:14,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-19 15:44:14,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:14,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315540390] [2021-11-19 15:44:14,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315540390] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:44:14,749 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:44:14,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 15:44:14,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793330162] [2021-11-19 15:44:14,749 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:14,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:44:14,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:44:14,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:44:14,760 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-19 15:44:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:14,879 INFO L93 Difference]: Finished difference Result 169 states and 202 transitions. [2021-11-19 15:44:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:44:14,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 70 [2021-11-19 15:44:14,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:14,885 INFO L225 Difference]: With dead ends: 169 [2021-11-19 15:44:14,892 INFO L226 Difference]: Without dead ends: 130 [2021-11-19 15:44:14,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:44:14,895 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 2 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:44:14,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 596 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:44:14,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-19 15:44:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-11-19 15:44:14,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 79 states have (on average 1.139240506329114) internal successors, (90), 80 states have internal predecessors, (90), 33 states have call successors, (33), 16 states have call predecessors, (33), 17 states have return successors, (33), 33 states have call predecessors, (33), 32 states have call successors, (33) [2021-11-19 15:44:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 156 transitions. [2021-11-19 15:44:14,934 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 156 transitions. Word has length 70 [2021-11-19 15:44:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:14,936 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 156 transitions. [2021-11-19 15:44:14,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-19 15:44:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 156 transitions. [2021-11-19 15:44:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 15:44:14,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:14,950 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:44:14,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:15,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:15,168 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:44:15,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:15,169 INFO L85 PathProgramCache]: Analyzing trace with hash -165031984, now seen corresponding path program 1 times [2021-11-19 15:44:15,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:15,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023061738] [2021-11-19 15:44:15,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:15,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:15,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:15,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:15,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:44:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:16,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1441 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:44:16,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-19 15:44:16,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-19 15:44:16,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:16,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023061738] [2021-11-19 15:44:16,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023061738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:44:16,891 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:44:16,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 15:44:16,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103652005] [2021-11-19 15:44:16,892 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:16,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:44:16,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:16,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:44:16,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:44:16,894 INFO L87 Difference]: Start difference. First operand 130 states and 156 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-19 15:44:16,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:16,985 INFO L93 Difference]: Finished difference Result 169 states and 201 transitions. [2021-11-19 15:44:16,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:44:16,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 76 [2021-11-19 15:44:16,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:16,992 INFO L225 Difference]: With dead ends: 169 [2021-11-19 15:44:16,993 INFO L226 Difference]: Without dead ends: 130 [2021-11-19 15:44:16,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:44:16,995 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:44:16,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:44:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-19 15:44:17,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2021-11-19 15:44:17,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 76 states have (on average 1.118421052631579) internal successors, (85), 77 states have internal predecessors, (85), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-19 15:44:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 150 transitions. [2021-11-19 15:44:17,015 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 150 transitions. Word has length 76 [2021-11-19 15:44:17,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:17,016 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 150 transitions. [2021-11-19 15:44:17,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-19 15:44:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 150 transitions. [2021-11-19 15:44:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 15:44:17,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:17,020 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:17,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:17,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:17,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:44:17,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:17,241 INFO L85 PathProgramCache]: Analyzing trace with hash 920324796, now seen corresponding path program 1 times [2021-11-19 15:44:17,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:17,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515281108] [2021-11-19 15:44:17,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:17,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:17,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:17,247 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:17,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:44:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:18,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:44:18,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 15:44:18,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 15:44:19,390 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:19,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515281108] [2021-11-19 15:44:19,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515281108] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:44:19,391 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:44:19,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 15:44:19,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125303297] [2021-11-19 15:44:19,392 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:19,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:44:19,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:19,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:44:19,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:44:19,397 INFO L87 Difference]: Start difference. First operand 126 states and 150 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 15:44:19,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:19,485 INFO L93 Difference]: Finished difference Result 188 states and 223 transitions. [2021-11-19 15:44:19,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:44:19,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 120 [2021-11-19 15:44:19,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:19,499 INFO L225 Difference]: With dead ends: 188 [2021-11-19 15:44:19,499 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 15:44:19,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:44:19,507 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 4 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:44:19,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 725 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:44:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 15:44:19,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 131. [2021-11-19 15:44:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 80 states have (on average 1.1125) internal successors, (89), 81 states have internal predecessors, (89), 33 states have call successors, (33), 16 states have call predecessors, (33), 17 states have return successors, (33), 33 states have call predecessors, (33), 32 states have call successors, (33) [2021-11-19 15:44:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 155 transitions. [2021-11-19 15:44:19,532 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 155 transitions. Word has length 120 [2021-11-19 15:44:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:19,533 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 155 transitions. [2021-11-19 15:44:19,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 15:44:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 155 transitions. [2021-11-19 15:44:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 15:44:19,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:19,537 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:19,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:19,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:19,760 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:44:19,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:19,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1169763950, now seen corresponding path program 1 times [2021-11-19 15:44:19,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:19,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79684443] [2021-11-19 15:44:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:19,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:19,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:19,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:19,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:44:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:20,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 15:44:20,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:21,628 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 15:44:21,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:22,423 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 15:44:22,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:44:22,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79684443] [2021-11-19 15:44:22,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79684443] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:44:22,425 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:44:22,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-19 15:44:22,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126857255] [2021-11-19 15:44:22,426 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:44:22,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:44:22,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:44:22,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:44:22,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:44:22,428 INFO L87 Difference]: Start difference. First operand 131 states and 155 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 15:44:22,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:44:22,681 INFO L93 Difference]: Finished difference Result 185 states and 219 transitions. [2021-11-19 15:44:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:44:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 126 [2021-11-19 15:44:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:44:22,687 INFO L225 Difference]: With dead ends: 185 [2021-11-19 15:44:22,688 INFO L226 Difference]: Without dead ends: 124 [2021-11-19 15:44:22,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:44:22,693 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 2 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:44:22,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1152 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:44:22,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-19 15:44:22,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-19 15:44:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 76 states have internal predecessors, (82), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-19 15:44:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2021-11-19 15:44:22,726 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 126 [2021-11-19 15:44:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:44:22,729 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2021-11-19 15:44:22,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 15:44:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2021-11-19 15:44:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-19 15:44:22,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:44:22,737 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 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 15:44:22,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:44:22,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:44:22,964 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:44:22,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:44:22,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2107791725, now seen corresponding path program 1 times [2021-11-19 15:44:22,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:44:22,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699105816] [2021-11-19 15:44:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:44:22,968 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:44:22,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:44:22,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:44:22,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281409c5-2f91-4d54-a6f1-1e94fa0af52f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:44:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:44:24,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-19 15:44:24,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:44:25,298 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-19 15:44:25,299 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 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-19 15:44:26,332 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:44:26,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 66 [2021-11-19 15:44:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-19 15:44:27,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:44:30,570 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 499 treesize of output 485