./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8 --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 a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:01:34,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:01:35,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:01:35,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:01:35,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:01:35,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:01:35,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:01:35,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:01:35,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:01:35,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:01:35,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:01:35,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:01:35,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:01:35,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:01:35,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:01:35,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:01:35,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:01:35,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:01:35,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:01:35,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:01:35,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:01:35,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:01:35,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:01:35,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:01:35,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:01:35,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:01:35,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:01:35,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:01:35,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:01:35,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:01:35,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:01:35,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:01:35,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:01:35,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:01:35,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:01:35,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:01:35,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:01:35,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:01:35,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:01:35,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:01:35,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:01:35,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:01:35,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:01:35,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:01:35,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:01:35,124 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:01:35,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:01:35,125 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:01:35,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:01:35,126 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:01:35,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:01:35,127 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:01:35,127 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:01:35,128 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:01:35,128 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:01:35,129 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:01:35,129 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:01:35,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:01:35,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:01:35,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:01:35,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:01:35,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:01:35,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:01:35,133 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:01:35,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:01:35,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:01:35,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:01:35,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:01:35,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:01:35,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:35,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:01:35,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:01:35,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:01:35,137 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:01:35,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:01:35,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:01:35,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:01:35,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:01:35,143 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_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 [2021-11-07 02:01:35,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:01:35,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:01:35,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:01:35,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:01:35,494 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:01:35,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-07 02:01:35,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/365722800/83fa884ffaad4d9d9030c9b75af418a6/FLAGbf440a858 [2021-11-07 02:01:36,711 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:01:36,712 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-07 02:01:36,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/365722800/83fa884ffaad4d9d9030c9b75af418a6/FLAGbf440a858 [2021-11-07 02:01:37,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/365722800/83fa884ffaad4d9d9030c9b75af418a6 [2021-11-07 02:01:37,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:01:37,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:01:37,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:37,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:01:37,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:01:37,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:37" (1/1) ... [2021-11-07 02:01:37,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ca507b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:37, skipping insertion in model container [2021-11-07 02:01:37,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:37" (1/1) ... [2021-11-07 02:01:37,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:01:37,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:01:37,543 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-07 02:01:37,552 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-07 02:01:37,586 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:01:37,597 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:01:38,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,941 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,966 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:38,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:39,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:01:39,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:01:39,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:01:39,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:01:39,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:01:39,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:01:39,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:01:39,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:01:39,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:01:39,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:01:39,835 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:01:40,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,467 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,467 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:40,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:40,588 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) [2021-11-07 02:01:40,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ef7f3b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:40, skipping insertion in model container [2021-11-07 02:01:40,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:40,590 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:01:40,592 INFO L168 Benchmark]: Toolchain (without parser) took 3516.91 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 33.1 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:40,593 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:01:40,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3513.19 ms. Allocated memory is still 107.0 MB. Free memory was 82.2 MB in the beginning and 33.1 MB in the end (delta: 49.1 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:40,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3513.19 ms. Allocated memory is still 107.0 MB. Free memory was 82.2 MB in the beginning and 33.1 MB in the end (delta: 49.1 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: 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_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8 --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 a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:01:43,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:01:43,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:01:43,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:01:43,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:01:43,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:01:43,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:01:43,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:01:43,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:01:43,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:01:43,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:01:43,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:01:43,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:01:43,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:01:43,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:01:43,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:01:43,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:01:43,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:01:43,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:01:43,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:01:43,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:01:43,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:01:43,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:01:43,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:01:43,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:01:43,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:01:43,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:01:43,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:01:43,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:01:43,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:01:43,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:01:43,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:01:43,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:01:43,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:01:43,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:01:43,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:01:43,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:01:43,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:01:43,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:01:43,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:01:43,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:01:43,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:01:43,578 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:01:43,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:01:43,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:01:43,581 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:01:43,581 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:01:43,582 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:01:43,582 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:01:43,582 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:01:43,583 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:01:43,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:01:43,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:01:43,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:01:43,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:01:43,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:01:43,587 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:01:43,587 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:01:43,587 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:01:43,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:01:43,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:01:43,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:01:43,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:01:43,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:01:43,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:01:43,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:43,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:01:43,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:01:43,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:01:43,590 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:01:43,590 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:01:43,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:01:43,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:01:43,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:01:43,591 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_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 [2021-11-07 02:01:44,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:01:44,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:01:44,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:01:44,059 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:01:44,060 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:01:44,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-07 02:01:44,161 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/5a8ec8539/cd6649aa40244c748d404a72bb34c011/FLAG2156de2e3 [2021-11-07 02:01:45,308 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:01:45,309 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-07 02:01:45,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/5a8ec8539/cd6649aa40244c748d404a72bb34c011/FLAG2156de2e3 [2021-11-07 02:01:45,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/data/5a8ec8539/cd6649aa40244c748d404a72bb34c011 [2021-11-07 02:01:45,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:01:45,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:01:45,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:45,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:01:45,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:01:45,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:45" (1/1) ... [2021-11-07 02:01:45,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e34e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:45, skipping insertion in model container [2021-11-07 02:01:45,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:45" (1/1) ... [2021-11-07 02:01:45,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:01:45,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:01:46,248 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-07 02:01:46,258 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-07 02:01:46,310 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:01:46,317 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:01:47,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:47,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:48,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:01:48,246 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:01:48,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:01:48,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:01:48,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:01:48,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:01:48,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:01:48,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:01:48,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:01:48,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:01:48,496 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:01:49,064 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:49,221 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:01:49,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:01:49,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-07 02:01:49,322 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-07 02:01:49,330 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:01:49,331 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:01:49,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:01:49,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:01:49,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:01:49,469 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:01:49,470 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:01:49,471 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:01:49,471 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:01:49,473 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:01:49,473 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:01:49,474 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:01:49,518 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:01:49,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,788 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:49,917 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:01:49,950 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-07 02:01:49,950 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-07 02:01:49,952 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:01:49,952 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:01:49,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:49,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,036 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,104 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:01:50,105 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:01:50,106 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:01:50,107 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:01:50,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:01:50,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:01:50,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:01:50,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:01:50,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:01:50,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:01:50,135 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:01:50,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:01:50,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:50,761 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:01:50,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50 WrapperNode [2021-11-07 02:01:50,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:50,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:01:50,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:01:50,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:01:50,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:50,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:01:51,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:01:51,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:01:51,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:01:51,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:01:51,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:01:51,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:01:51,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:01:51,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (1/1) ... [2021-11-07 02:01:51,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:51,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:01:51,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:01:51,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:01:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 02:01:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:01:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:01:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:01:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:01:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:01:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 02:01:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:01:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:01:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:01:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:01:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:01:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:01:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:01:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:01:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:01:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:01:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-07 02:01:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:01:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:01:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:01:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-07 02:02:26,486 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##262: assume !true; [2021-11-07 02:02:26,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##287: assume !true; [2021-11-07 02:02:26,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !true; [2021-11-07 02:02:26,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !true; [2021-11-07 02:02:26,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume !true; [2021-11-07 02:02:26,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !true; [2021-11-07 02:02:26,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##142: assume !true; [2021-11-07 02:02:26,515 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:02:26,516 INFO L299 CfgBuilder]: Removed 368 assume(true) statements. [2021-11-07 02:02:26,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:26 BoogieIcfgContainer [2021-11-07 02:02:26,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:02:26,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:02:26,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:02:26,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:02:26,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:01:45" (1/3) ... [2021-11-07 02:02:26,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc65072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:26, skipping insertion in model container [2021-11-07 02:02:26,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:50" (2/3) ... [2021-11-07 02:02:26,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc65072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:26, skipping insertion in model container [2021-11-07 02:02:26,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:26" (3/3) ... [2021-11-07 02:02:26,529 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2021-11-07 02:02:26,535 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:02:26,535 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-07 02:02:26,591 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:02:26,597 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 [2021-11-07 02:02:26,598 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-07 02:02:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 386 states, 368 states have (on average 1.4375) internal successors, (529), 385 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 02:02:26,648 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:26,649 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:26,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:02:26,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:26,666 INFO L85 PathProgramCache]: Analyzing trace with hash -714573874, now seen corresponding path program 1 times [2021-11-07 02:02:26,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:26,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589423415] [2021-11-07 02:02:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:26,696 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:26,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:26,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:26,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:02:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:31,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:02:31,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:31,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:31,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:31,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589423415] [2021-11-07 02:02:31,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589423415] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:31,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:31,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:02:31,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49946597] [2021-11-07 02:02:31,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:02:31,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:02:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:02:31,987 INFO L87 Difference]: Start difference. First operand has 386 states, 368 states have (on average 1.4375) internal successors, (529), 385 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:32,098 INFO L93 Difference]: Finished difference Result 766 states and 1051 transitions. [2021-11-07 02:02:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:02:32,100 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-07 02:02:32,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:32,124 INFO L225 Difference]: With dead ends: 766 [2021-11-07 02:02:32,129 INFO L226 Difference]: Without dead ends: 377 [2021-11-07 02:02:32,141 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:02:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-07 02:02:32,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-11-07 02:02:32,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 360 states have (on average 1.2805555555555554) internal successors, (461), 376 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 461 transitions. [2021-11-07 02:02:32,217 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 461 transitions. Word has length 47 [2021-11-07 02:02:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:32,218 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 461 transitions. [2021-11-07 02:02:32,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 461 transitions. [2021-11-07 02:02:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 02:02:32,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:32,221 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:32,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:32,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:32,446 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:02:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:32,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1373789074, now seen corresponding path program 1 times [2021-11-07 02:02:32,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:32,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675879817] [2021-11-07 02:02:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:32,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:32,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:32,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:02:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:37,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:02:37,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:37,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:37,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:37,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:37,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675879817] [2021-11-07 02:02:37,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675879817] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:37,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:37,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:02:37,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086489778] [2021-11-07 02:02:37,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:02:37,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:37,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:02:37,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:02:37,709 INFO L87 Difference]: Start difference. First operand 377 states and 461 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:46,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:46,677 INFO L93 Difference]: Finished difference Result 1081 states and 1324 transitions. [2021-11-07 02:02:46,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:02:46,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-07 02:02:46,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:46,685 INFO L225 Difference]: With dead ends: 1081 [2021-11-07 02:02:46,686 INFO L226 Difference]: Without dead ends: 726 [2021-11-07 02:02:46,688 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:02:46,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-11-07 02:02:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 383. [2021-11-07 02:02:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 366 states have (on average 1.2759562841530054) internal successors, (467), 382 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 467 transitions. [2021-11-07 02:02:46,721 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 467 transitions. Word has length 47 [2021-11-07 02:02:46,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:46,721 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 467 transitions. [2021-11-07 02:02:46,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:46,722 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 467 transitions. [2021-11-07 02:02:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 02:02:46,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:46,724 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:46,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:46,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:46,946 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:02:46,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:46,946 INFO L85 PathProgramCache]: Analyzing trace with hash 882870646, now seen corresponding path program 1 times [2021-11-07 02:02:46,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:46,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979142715] [2021-11-07 02:02:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:46,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:46,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:46,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:46,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:02:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:51,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:02:51,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:51,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:52,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:52,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979142715] [2021-11-07 02:02:52,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979142715] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:52,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:52,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 02:02:52,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583950272] [2021-11-07 02:02:52,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:02:52,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:52,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:02:52,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:02:52,028 INFO L87 Difference]: Start difference. First operand 383 states and 467 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:52,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:52,515 INFO L93 Difference]: Finished difference Result 903 states and 1101 transitions. [2021-11-07 02:02:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:02:52,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-07 02:02:52,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:52,520 INFO L225 Difference]: With dead ends: 903 [2021-11-07 02:02:52,520 INFO L226 Difference]: Without dead ends: 545 [2021-11-07 02:02:52,521 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:02:52,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-11-07 02:02:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 380. [2021-11-07 02:02:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2727272727272727) internal successors, (462), 379 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 462 transitions. [2021-11-07 02:02:52,543 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 462 transitions. Word has length 49 [2021-11-07 02:02:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:52,544 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 462 transitions. [2021-11-07 02:02:52,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 462 transitions. [2021-11-07 02:02:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 02:02:52,547 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:52,547 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:52,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:52,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:52,762 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:02:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:52,763 INFO L85 PathProgramCache]: Analyzing trace with hash -293053821, now seen corresponding path program 1 times [2021-11-07 02:02:52,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:52,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955294482] [2021-11-07 02:02:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:52,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:52,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:52,767 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:52,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:02:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:57,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:02:57,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:58,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:02:58,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:58,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:58,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 02:02:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:59,375 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:59,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955294482] [2021-11-07 02:02:59,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955294482] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:59,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:59,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 02:02:59,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046667636] [2021-11-07 02:02:59,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:02:59,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:59,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:02:59,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:02:59,378 INFO L87 Difference]: Start difference. First operand 380 states and 462 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:35,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:35,112 INFO L93 Difference]: Finished difference Result 731 states and 892 transitions. [2021-11-07 02:03:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:03:35,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 02:03:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:35,132 INFO L225 Difference]: With dead ends: 731 [2021-11-07 02:03:35,132 INFO L226 Difference]: Without dead ends: 386 [2021-11-07 02:03:35,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:03:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-07 02:03:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 382. [2021-11-07 02:03:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 365 states have (on average 1.2712328767123289) internal successors, (464), 381 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 464 transitions. [2021-11-07 02:03:35,150 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 464 transitions. Word has length 52 [2021-11-07 02:03:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:35,151 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 464 transitions. [2021-11-07 02:03:35,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 464 transitions. [2021-11-07 02:03:35,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 02:03:35,153 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:35,154 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:03:35,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:03:35,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:35,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:03:35,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1630174213, now seen corresponding path program 1 times [2021-11-07 02:03:35,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:35,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460402115] [2021-11-07 02:03:35,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:35,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:35,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:35,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:03:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:40,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:03:40,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:03:40,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:03:41,420 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:41,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460402115] [2021-11-07 02:03:41,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460402115] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:41,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:41,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:03:41,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802389385] [2021-11-07 02:03:41,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:03:41,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:41,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:03:41,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:03:41,422 INFO L87 Difference]: Start difference. First operand 382 states and 464 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:43,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:43,855 INFO L93 Difference]: Finished difference Result 730 states and 890 transitions. [2021-11-07 02:03:43,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:03:43,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 02:03:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:43,864 INFO L225 Difference]: With dead ends: 730 [2021-11-07 02:03:43,864 INFO L226 Difference]: Without dead ends: 380 [2021-11-07 02:03:43,865 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:03:43,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-07 02:03:43,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2021-11-07 02:03:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2672176308539944) internal successors, (460), 379 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 460 transitions. [2021-11-07 02:03:43,880 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 460 transitions. Word has length 52 [2021-11-07 02:03:43,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:43,881 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 460 transitions. [2021-11-07 02:03:43,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:43,881 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 460 transitions. [2021-11-07 02:03:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 02:03:43,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:43,883 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:03:43,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:03:44,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:44,098 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:03:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:44,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1198784354, now seen corresponding path program 1 times [2021-11-07 02:03:44,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:44,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696437702] [2021-11-07 02:03:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:44,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:44,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:44,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:44,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:03:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:48,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:03:48,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:49,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:03:49,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 02:03:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:03:49,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:50,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 02:03:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:03:50,565 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:50,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696437702] [2021-11-07 02:03:50,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696437702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:50,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:50,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 02:03:50,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933537808] [2021-11-07 02:03:50,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:03:50,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:03:50,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:03:50,569 INFO L87 Difference]: Start difference. First operand 380 states and 460 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:27,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:27,743 INFO L93 Difference]: Finished difference Result 726 states and 883 transitions. [2021-11-07 02:04:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:04:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 02:04:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:27,759 INFO L225 Difference]: With dead ends: 726 [2021-11-07 02:04:27,760 INFO L226 Difference]: Without dead ends: 380 [2021-11-07 02:04:27,761 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:04:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-07 02:04:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2021-11-07 02:04:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2644628099173554) internal successors, (459), 379 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:27,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 459 transitions. [2021-11-07 02:04:27,775 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 459 transitions. Word has length 54 [2021-11-07 02:04:27,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:27,776 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 459 transitions. [2021-11-07 02:04:27,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 459 transitions. [2021-11-07 02:04:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 02:04:27,778 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:27,778 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:27,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:28,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:28,002 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:04:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:28,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1371165291, now seen corresponding path program 1 times [2021-11-07 02:04:28,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:28,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993226165] [2021-11-07 02:04:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:28,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:28,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:28,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:28,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:04:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:32,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:04:32,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:32,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:32,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:32,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993226165] [2021-11-07 02:04:32,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993226165] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:32,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:32,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:04:32,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74743480] [2021-11-07 02:04:32,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:04:32,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:04:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:04:32,993 INFO L87 Difference]: Start difference. First operand 380 states and 459 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:38,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:38,818 INFO L93 Difference]: Finished difference Result 910 states and 1106 transitions. [2021-11-07 02:04:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:04:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-07 02:04:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:38,823 INFO L225 Difference]: With dead ends: 910 [2021-11-07 02:04:38,823 INFO L226 Difference]: Without dead ends: 576 [2021-11-07 02:04:38,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:04:38,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2021-11-07 02:04:38,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 380. [2021-11-07 02:04:38,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2506887052341598) internal successors, (454), 379 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 454 transitions. [2021-11-07 02:04:38,841 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 454 transitions. Word has length 55 [2021-11-07 02:04:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:38,841 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 454 transitions. [2021-11-07 02:04:38,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 454 transitions. [2021-11-07 02:04:38,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 02:04:38,843 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:38,843 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:38,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 02:04:39,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:39,054 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:04:39,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:39,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2008987970, now seen corresponding path program 1 times [2021-11-07 02:04:39,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:39,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314823685] [2021-11-07 02:04:39,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:39,058 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:39,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:39,058 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:39,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:04:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:43,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 02:04:43,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:43,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:43,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:44,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:44,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314823685] [2021-11-07 02:04:44,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314823685] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:44,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:44,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:04:44,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090799826] [2021-11-07 02:04:44,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:04:44,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:44,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:04:44,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:04:44,065 INFO L87 Difference]: Start difference. First operand 380 states and 454 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:44,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:44,412 INFO L93 Difference]: Finished difference Result 577 states and 714 transitions. [2021-11-07 02:04:44,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:04:44,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-07 02:04:44,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:44,417 INFO L225 Difference]: With dead ends: 577 [2021-11-07 02:04:44,417 INFO L226 Difference]: Without dead ends: 571 [2021-11-07 02:04:44,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:04:44,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-07 02:04:44,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 374. [2021-11-07 02:04:44,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 360 states have (on average 1.2444444444444445) internal successors, (448), 373 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 448 transitions. [2021-11-07 02:04:44,435 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 448 transitions. Word has length 56 [2021-11-07 02:04:44,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:44,436 INFO L470 AbstractCegarLoop]: Abstraction has 374 states and 448 transitions. [2021-11-07 02:04:44,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:44,436 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 448 transitions. [2021-11-07 02:04:44,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 02:04:44,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:44,437 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:44,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:44,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:44,654 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:04:44,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:44,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1039905759, now seen corresponding path program 1 times [2021-11-07 02:04:44,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:44,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294863543] [2021-11-07 02:04:44,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:44,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:44,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:44,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:44,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:04:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:49,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:04:49,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:50,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:50,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:50,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294863543] [2021-11-07 02:04:50,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294863543] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:50,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:50,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:04:50,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524069440] [2021-11-07 02:04:50,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:04:50,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:50,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:04:50,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:04:50,407 INFO L87 Difference]: Start difference. First operand 374 states and 448 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:51,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:51,295 INFO L93 Difference]: Finished difference Result 1536 states and 1918 transitions. [2021-11-07 02:04:51,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:04:51,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-07 02:04:51,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:51,306 INFO L225 Difference]: With dead ends: 1536 [2021-11-07 02:04:51,306 INFO L226 Difference]: Without dead ends: 1534 [2021-11-07 02:04:51,307 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:04:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2021-11-07 02:04:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 372. [2021-11-07 02:04:51,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 359 states have (on average 1.2423398328690807) internal successors, (446), 371 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 446 transitions. [2021-11-07 02:04:51,336 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 446 transitions. Word has length 63 [2021-11-07 02:04:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:51,339 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 446 transitions. [2021-11-07 02:04:51,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 446 transitions. [2021-11-07 02:04:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 02:04:51,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:51,341 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:51,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:51,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:51,566 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:04:51,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:51,566 INFO L85 PathProgramCache]: Analyzing trace with hash 82048191, now seen corresponding path program 1 times [2021-11-07 02:04:51,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:51,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244473687] [2021-11-07 02:04:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:51,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:51,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:51,571 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:51,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:04:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:57,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:04:57,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:57,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:57,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:57,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244473687] [2021-11-07 02:04:57,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244473687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:57,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:57,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:04:57,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318437471] [2021-11-07 02:04:57,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:04:57,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:57,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:04:57,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:04:57,754 INFO L87 Difference]: Start difference. First operand 372 states and 446 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:58,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:58,057 INFO L93 Difference]: Finished difference Result 996 states and 1207 transitions. [2021-11-07 02:04:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:04:58,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 02:04:58,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:58,065 INFO L225 Difference]: With dead ends: 996 [2021-11-07 02:04:58,066 INFO L226 Difference]: Without dead ends: 693 [2021-11-07 02:04:58,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:04:58,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-11-07 02:04:58,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 390. [2021-11-07 02:04:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 377 states have (on average 1.2360742705570291) internal successors, (466), 389 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:58,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 466 transitions. [2021-11-07 02:04:58,089 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 466 transitions. Word has length 70 [2021-11-07 02:04:58,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:58,089 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 466 transitions. [2021-11-07 02:04:58,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 466 transitions. [2021-11-07 02:04:58,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 02:04:58,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:58,091 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:58,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:58,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:58,314 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:04:58,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:58,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1197815487, now seen corresponding path program 1 times [2021-11-07 02:04:58,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:58,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409004037] [2021-11-07 02:04:58,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:58,318 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:58,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:58,318 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:58,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:05:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:03,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 02:05:03,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:04,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:04,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:04,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409004037] [2021-11-07 02:05:04,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409004037] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:04,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:04,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-07 02:05:04,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946236657] [2021-11-07 02:05:04,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:05:04,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:04,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:05:04,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:05:04,907 INFO L87 Difference]: Start difference. First operand 390 states and 466 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:07,803 INFO L93 Difference]: Finished difference Result 1173 states and 1423 transitions. [2021-11-07 02:05:07,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:05:07,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 02:05:07,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:07,811 INFO L225 Difference]: With dead ends: 1173 [2021-11-07 02:05:07,812 INFO L226 Difference]: Without dead ends: 882 [2021-11-07 02:05:07,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:05:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-11-07 02:05:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 404. [2021-11-07 02:05:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 391 states have (on average 1.237851662404092) internal successors, (484), 403 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:07,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 484 transitions. [2021-11-07 02:05:07,854 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 484 transitions. Word has length 70 [2021-11-07 02:05:07,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:07,855 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 484 transitions. [2021-11-07 02:05:07,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:07,856 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 484 transitions. [2021-11-07 02:05:07,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 02:05:07,857 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:07,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:07,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:08,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:08,082 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:05:08,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1578763667, now seen corresponding path program 1 times [2021-11-07 02:05:08,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:08,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707674237] [2021-11-07 02:05:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:08,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:08,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:08,089 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:08,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 02:05:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:13,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 02:05:13,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:14,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:14,529 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:14,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707674237] [2021-11-07 02:05:14,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707674237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:14,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:14,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 02:05:14,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677015234] [2021-11-07 02:05:14,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:05:14,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:14,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:05:14,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:05:14,530 INFO L87 Difference]: Start difference. First operand 404 states and 484 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:36,426 INFO L93 Difference]: Finished difference Result 1118 states and 1344 transitions. [2021-11-07 02:05:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:05:36,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 02:05:36,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:36,458 INFO L225 Difference]: With dead ends: 1118 [2021-11-07 02:05:36,458 INFO L226 Difference]: Without dead ends: 852 [2021-11-07 02:05:36,459 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:05:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-11-07 02:05:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 404. [2021-11-07 02:05:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 391 states have (on average 1.2327365728900255) internal successors, (482), 403 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 482 transitions. [2021-11-07 02:05:36,507 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 482 transitions. Word has length 71 [2021-11-07 02:05:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:36,508 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 482 transitions. [2021-11-07 02:05:36,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:36,508 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 482 transitions. [2021-11-07 02:05:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 02:05:36,510 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:36,510 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:36,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-07 02:05:36,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:36,726 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:05:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2010135366, now seen corresponding path program 1 times [2021-11-07 02:05:36,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:36,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832088381] [2021-11-07 02:05:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:36,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:36,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:36,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:36,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 02:05:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:41,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:05:41,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:42,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:42,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:42,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:42,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832088381] [2021-11-07 02:05:42,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832088381] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:42,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:42,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:05:42,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324404605] [2021-11-07 02:05:42,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:05:42,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:42,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:05:42,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:05:42,346 INFO L87 Difference]: Start difference. First operand 404 states and 482 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:42,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:42,732 INFO L93 Difference]: Finished difference Result 862 states and 1025 transitions. [2021-11-07 02:05:42,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:05:42,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 02:05:42,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:42,737 INFO L225 Difference]: With dead ends: 862 [2021-11-07 02:05:42,737 INFO L226 Difference]: Without dead ends: 815 [2021-11-07 02:05:42,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:05:42,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-11-07 02:05:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 406. [2021-11-07 02:05:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 393 states have (on average 1.2315521628498727) internal successors, (484), 405 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 484 transitions. [2021-11-07 02:05:42,789 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 484 transitions. Word has length 72 [2021-11-07 02:05:42,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:42,789 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 484 transitions. [2021-11-07 02:05:42,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:42,790 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 484 transitions. [2021-11-07 02:05:42,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 02:05:42,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:42,791 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:42,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:43,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:43,015 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:05:43,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:43,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1698818310, now seen corresponding path program 1 times [2021-11-07 02:05:43,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:43,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767157249] [2021-11-07 02:05:43,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:43,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:43,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:43,026 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:43,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c0f0b8-47e0-4f91-bff0-a0a68979c57b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 02:05:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:49,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 72 conjunts are in the unsatisfiable core [2021-11-07 02:05:49,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:57,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:57,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:57,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:57,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 102 [2021-11-07 02:06:57,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:57,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:57,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:57,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 70 [2021-11-07 02:07:03,240 INFO L354 Elim1Store]: treesize reduction 9360, result has 0.0 percent of original size [2021-11-07 02:07:03,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 40 select indices, 40 select index equivalence classes, 0 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 780 case distinctions, treesize of input 955 treesize of output 283 [2021-11-07 02:07:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:04,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:56,540 WARN L207 SmtUtils]: Spent 20.54 s on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-11-07 02:08:56,542 INFO L354 Elim1Store]: treesize reduction 76, result has 59.6 percent of original size [2021-11-07 02:08:56,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1814 treesize of output 1893 [2021-11-07 02:09:22,341 WARN L207 SmtUtils]: Spent 25.77 s on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-11-07 02:09:22,346 INFO L354 Elim1Store]: treesize reduction 76, result has 59.6 percent of original size [2021-11-07 02:09:22,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1893 treesize of output 1972