./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:07:06,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:07:06,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:07:07,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:07:07,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:07:07,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:07:07,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:07:07,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:07:07,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:07:07,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:07:07,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:07:07,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:07:07,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:07:07,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:07:07,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:07:07,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:07:07,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:07:07,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:07:07,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:07:07,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:07:07,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:07:07,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:07:07,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:07:07,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:07:07,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:07:07,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:07:07,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:07:07,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:07:07,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:07:07,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:07:07,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:07:07,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:07:07,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:07:07,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:07:07,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:07:07,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:07:07,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:07:07,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:07:07,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:07:07,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:07:07,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:07:07,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:07:07,184 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:07:07,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:07:07,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:07:07,186 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:07:07,186 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:07:07,186 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:07:07,187 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:07:07,187 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:07:07,194 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:07:07,194 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:07:07,195 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:07:07,195 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:07:07,196 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:07:07,196 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:07:07,196 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:07:07,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:07:07,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:07:07,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:07:07,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:07:07,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:07:07,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:07:07,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:07:07,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:07:07,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:07:07,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:07:07,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:07:07,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:07:07,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:07:07,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:07:07,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:07:07,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:07:07,203 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:07:07,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:07:07,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:07:07,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:07:07,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:07:07,204 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2021-11-07 01:07:07,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:07:07,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:07:07,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:07:07,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:07:07,583 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:07:07,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-07 01:07:07,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/855b0f440/3c42b9167e1d45b3adeb723c2a020aaa/FLAG58111e8db [2021-11-07 01:07:08,535 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:07:08,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-07 01:07:08,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/855b0f440/3c42b9167e1d45b3adeb723c2a020aaa/FLAG58111e8db [2021-11-07 01:07:09,007 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/855b0f440/3c42b9167e1d45b3adeb723c2a020aaa [2021-11-07 01:07:09,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:07:09,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:07:09,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:09,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:07:09,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:07:09,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:09" (1/1) ... [2021-11-07 01:07:09,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315930d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:09, skipping insertion in model container [2021-11-07 01:07:09,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:09" (1/1) ... [2021-11-07 01:07:09,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:07:09,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:07:09,506 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-07 01:07:09,516 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-07 01:07:09,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:09,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:10,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:10,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:11,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:11,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:11,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:11,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:11,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:11,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:11,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:11,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:11,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:11,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:11,361 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:11,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:11,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:11,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:11,608 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 01:07:11,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@645bd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:11, skipping insertion in model container [2021-11-07 01:07:11,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:11,611 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:07:11,614 INFO L168 Benchmark]: Toolchain (without parser) took 2601.52 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 62.8 MB in the beginning and 61.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:11,616 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 67.1 MB in the end (delta: 50.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:07:11,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2599.08 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 62.6 MB in the beginning and 61.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:11,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 67.1 MB in the end (delta: 50.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2599.08 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 62.6 MB in the beginning and 61.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:07:14,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:07:14,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:07:14,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:07:14,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:07:14,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:07:14,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:07:14,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:07:14,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:07:14,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:07:14,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:07:14,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:07:14,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:07:14,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:07:14,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:07:14,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:07:14,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:07:14,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:07:14,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:07:14,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:07:14,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:07:14,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:07:14,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:07:14,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:07:14,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:07:14,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:07:14,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:07:14,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:07:14,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:07:14,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:07:14,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:07:14,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:07:14,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:07:14,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:07:14,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:07:14,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:07:14,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:07:14,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:07:14,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:07:14,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:07:14,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:07:14,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:07:14,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:07:14,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:07:14,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:07:14,227 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:07:14,227 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:07:14,227 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:07:14,227 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:07:14,228 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:07:14,228 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:07:14,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:07:14,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:07:14,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:07:14,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:07:14,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:07:14,230 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:07:14,230 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:07:14,230 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:07:14,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:07:14,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:07:14,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:07:14,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:07:14,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:07:14,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:07:14,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:07:14,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:07:14,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:07:14,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:07:14,233 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:07:14,233 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:07:14,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:07:14,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:07:14,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:07:14,234 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884fded8e66f5d1fb48ea41b5fc2a80efc48c733a21e019f076525ed24611a3d [2021-11-07 01:07:14,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:07:14,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:07:14,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:07:14,698 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:07:14,699 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:07:14,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-07 01:07:14,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/72e9eb54b/a30337ff01ab430ba16d0384eb17e2ea/FLAG319c0b18f [2021-11-07 01:07:15,668 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:07:15,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i [2021-11-07 01:07:15,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/72e9eb54b/a30337ff01ab430ba16d0384eb17e2ea/FLAG319c0b18f [2021-11-07 01:07:16,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/data/72e9eb54b/a30337ff01ab430ba16d0384eb17e2ea [2021-11-07 01:07:16,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:07:16,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:07:16,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:16,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:07:16,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:07:16,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:16" (1/1) ... [2021-11-07 01:07:16,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f35ac63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:16, skipping insertion in model container [2021-11-07 01:07:16,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:16" (1/1) ... [2021-11-07 01:07:16,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:07:16,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:07:16,643 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-07 01:07:16,649 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-07 01:07:16,673 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:16,679 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:18,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,108 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:18,726 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:18,731 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:18,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:18,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:18,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:18,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:18,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:18,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:18,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:18,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:18,985 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:19,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:19,350 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:07:19,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:07:19,416 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-07 01:07:19,416 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-07 01:07:19,418 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:19,418 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:19,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,467 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,467 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:19,510 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:19,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:19,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:19,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:19,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:19,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:19,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:19,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:19,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:19,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:19,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:19,675 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:07:19,688 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4492,4505] [2021-11-07 01:07:19,689 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_0efd74e8-9081-46c2-af4f-8bff96fc74ea/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_harness.i[4552,4565] [2021-11-07 01:07:19,690 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:19,691 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:19,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:19,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:19,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:19,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:19,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:19,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:19,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:19,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:19,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:19,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:19,813 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:19,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:19,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:20,298 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:07:20,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20 WrapperNode [2021-11-07 01:07:20,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:20,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:07:20,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:07:20,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:07:20,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:07:20,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:07:20,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:07:20,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:07:20,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:07:20,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:07:20,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:07:20,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:07:20,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (1/1) ... [2021-11-07 01:07:20,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:07:20,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:07:20,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:07:20,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:07:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:07:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:07:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:07:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:07:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-07 01:07:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:07:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:07:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:07:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:07:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:07:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:07:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:07:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:07:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:07:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:07:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:07:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:07:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:07:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:07:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:07:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:07:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:07:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-07 01:07:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-07 01:07:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-07 01:07:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:07:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:07:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:07:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:07:38,089 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:07:38,089 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-11-07 01:07:38,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:38 BoogieIcfgContainer [2021-11-07 01:07:38,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:07:38,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:07:38,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:07:38,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:07:38,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:07:16" (1/3) ... [2021-11-07 01:07:38,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c250d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:38, skipping insertion in model container [2021-11-07 01:07:38,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20" (2/3) ... [2021-11-07 01:07:38,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c250d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:38, skipping insertion in model container [2021-11-07 01:07:38,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:38" (3/3) ... [2021-11-07 01:07:38,100 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_harness.i [2021-11-07 01:07:38,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:07:38,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 01:07:38,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:07:38,163 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 01:07:38,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 01:07:38,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 159 states have (on average 1.509433962264151) internal successors, (240), 172 states have internal predecessors, (240), 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 01:07:38,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:07:38,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:38,204 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] [2021-11-07 01:07:38,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:07:38,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1767919810, now seen corresponding path program 1 times [2021-11-07 01:07:38,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:38,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607762541] [2021-11-07 01:07:38,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:38,240 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:38,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:38,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:38,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:07:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:42,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:07:42,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:42,942 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 01:07:42,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:43,092 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 01:07:43,093 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:43,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607762541] [2021-11-07 01:07:43,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607762541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:43,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:43,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:07:43,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215260278] [2021-11-07 01:07:43,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:07:43,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:43,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:07:43,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:07:43,134 INFO L87 Difference]: Start difference. First operand has 173 states, 159 states have (on average 1.509433962264151) internal successors, (240), 172 states have internal predecessors, (240), 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 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 01:07:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:43,181 INFO L93 Difference]: Finished difference Result 343 states and 476 transitions. [2021-11-07 01:07:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:07:43,183 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-07 01:07:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:43,194 INFO L225 Difference]: With dead ends: 343 [2021-11-07 01:07:43,196 INFO L226 Difference]: Without dead ends: 168 [2021-11-07 01:07:43,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 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 01:07:43,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-07 01:07:43,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-07 01:07:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 155 states have (on average 1.3870967741935485) internal successors, (215), 167 states have internal predecessors, (215), 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 01:07:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2021-11-07 01:07:43,250 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 33 [2021-11-07 01:07:43,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:43,251 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2021-11-07 01:07:43,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 01:07:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2021-11-07 01:07:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:07:43,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:43,253 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] [2021-11-07 01:07:43,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:43,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:43,472 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:07:43,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:43,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1997046536, now seen corresponding path program 1 times [2021-11-07 01:07:43,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:43,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423814250] [2021-11-07 01:07:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:43,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:43,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:43,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:43,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:07:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:47,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:07:47,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:48,114 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 01:07:48,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:48,311 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 01:07:48,312 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:48,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423814250] [2021-11-07 01:07:48,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423814250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:48,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:48,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:07:48,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330458709] [2021-11-07 01:07:48,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:48,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:48,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:48,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:07:48,315 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 01:07:48,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:48,670 INFO L93 Difference]: Finished difference Result 310 states and 396 transitions. [2021-11-07 01:07:48,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:07:48,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-11-07 01:07:48,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:48,673 INFO L225 Difference]: With dead ends: 310 [2021-11-07 01:07:48,673 INFO L226 Difference]: Without dead ends: 168 [2021-11-07 01:07:48,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 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 01:07:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-07 01:07:48,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-07 01:07:48,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 155 states have (on average 1.367741935483871) internal successors, (212), 167 states have internal predecessors, (212), 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 01:07:48,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 212 transitions. [2021-11-07 01:07:48,690 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 212 transitions. Word has length 33 [2021-11-07 01:07:48,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:48,690 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 212 transitions. [2021-11-07 01:07:48,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 01:07:48,691 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 212 transitions. [2021-11-07 01:07:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:07:48,693 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:48,693 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] [2021-11-07 01:07:48,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 01:07:48,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:48,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:07:48,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:48,901 INFO L85 PathProgramCache]: Analyzing trace with hash -234670874, now seen corresponding path program 1 times [2021-11-07 01:07:48,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:48,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797259041] [2021-11-07 01:07:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:48,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:48,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:48,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:48,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:07:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:53,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:07:53,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:53,275 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 01:07:53,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:53,445 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 01:07:53,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:53,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797259041] [2021-11-07 01:07:53,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797259041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:53,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:53,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:07:53,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363417999] [2021-11-07 01:07:53,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:53,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:53,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:53,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:07:53,449 INFO L87 Difference]: Start difference. First operand 168 states and 212 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 01:07:53,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:53,873 INFO L93 Difference]: Finished difference Result 361 states and 462 transitions. [2021-11-07 01:07:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:07:53,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2021-11-07 01:07:53,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:53,877 INFO L225 Difference]: With dead ends: 361 [2021-11-07 01:07:53,877 INFO L226 Difference]: Without dead ends: 218 [2021-11-07 01:07:53,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 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 01:07:53,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-07 01:07:53,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 178. [2021-11-07 01:07:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 165 states have (on average 1.3454545454545455) internal successors, (222), 177 states have internal predecessors, (222), 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 01:07:53,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 222 transitions. [2021-11-07 01:07:53,897 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 222 transitions. Word has length 45 [2021-11-07 01:07:53,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:53,898 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 222 transitions. [2021-11-07 01:07:53,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 01:07:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 222 transitions. [2021-11-07 01:07:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:07:53,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:53,901 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] [2021-11-07 01:07:53,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:07:54,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:54,114 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:07:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash -257303128, now seen corresponding path program 1 times [2021-11-07 01:07:54,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:54,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220223259] [2021-11-07 01:07:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:54,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:54,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:54,121 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:54,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:07:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:58,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:07:58,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:58,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 01:07:59,123 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 01:07:59,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:59,436 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 40 treesize of output 34 [2021-11-07 01:07:59,717 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 01:07:59,717 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:59,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220223259] [2021-11-07 01:07:59,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220223259] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:59,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:59,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:07:59,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295911910] [2021-11-07 01:07:59,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:07:59,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:07:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:07:59,719 INFO L87 Difference]: Start difference. First operand 178 states and 222 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 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 01:08:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:30,720 INFO L93 Difference]: Finished difference Result 490 states and 615 transitions. [2021-11-07 01:08:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:08:30,721 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 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 45 [2021-11-07 01:08:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:30,724 INFO L225 Difference]: With dead ends: 490 [2021-11-07 01:08:30,724 INFO L226 Difference]: Without dead ends: 339 [2021-11-07 01:08:30,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:08:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-07 01:08:30,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 254. [2021-11-07 01:08:30,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 253 states have internal predecessors, (331), 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 01:08:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 331 transitions. [2021-11-07 01:08:30,746 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 331 transitions. Word has length 45 [2021-11-07 01:08:30,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:30,747 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 331 transitions. [2021-11-07 01:08:30,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 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 01:08:30,747 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 331 transitions. [2021-11-07 01:08:30,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:08:30,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:30,750 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 01:08:30,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:30,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:30,976 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:08:30,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:30,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1017195303, now seen corresponding path program 1 times [2021-11-07 01:08:30,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:30,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370164204] [2021-11-07 01:08:30,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:30,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:30,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:31,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:08:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:35,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:08:35,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:35,864 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:08:35,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:08:36,139 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 01:08:36,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:36,713 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 01:08:36,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:36,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370164204] [2021-11-07 01:08:36,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370164204] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:36,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:36,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:08:36,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945328486] [2021-11-07 01:08:36,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:08:36,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:36,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:08:36,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:08:36,716 INFO L87 Difference]: Start difference. First operand 254 states and 331 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 01:08:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:51,734 INFO L93 Difference]: Finished difference Result 772 states and 1001 transitions. [2021-11-07 01:08:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:08:51,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 52 [2021-11-07 01:08:51,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:51,741 INFO L225 Difference]: With dead ends: 772 [2021-11-07 01:08:51,741 INFO L226 Difference]: Without dead ends: 538 [2021-11-07 01:08:51,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:08:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-07 01:08:51,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 301. [2021-11-07 01:08:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 288 states have (on average 1.3576388888888888) internal successors, (391), 300 states have internal predecessors, (391), 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 01:08:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 391 transitions. [2021-11-07 01:08:51,761 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 391 transitions. Word has length 52 [2021-11-07 01:08:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:51,761 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 391 transitions. [2021-11-07 01:08:51,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 01:08:51,761 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 391 transitions. [2021-11-07 01:08:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:08:51,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:51,764 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 01:08:51,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:51,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:51,980 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:08:51,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:51,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1226787995, now seen corresponding path program 1 times [2021-11-07 01:08:51,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:51,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696772576] [2021-11-07 01:08:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:51,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:51,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:51,988 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:51,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:08:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:55,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:08:55,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:56,384 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:08:56,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:08:56,999 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 01:08:56,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:57,556 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 01:08:57,556 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:57,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696772576] [2021-11-07 01:08:57,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696772576] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:57,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:57,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:08:57,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816499381] [2021-11-07 01:08:57,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:08:57,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:57,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:08:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:08:57,558 INFO L87 Difference]: Start difference. First operand 301 states and 391 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 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 01:09:12,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:12,354 INFO L93 Difference]: Finished difference Result 1010 states and 1274 transitions. [2021-11-07 01:09:12,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:09:12,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 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 52 [2021-11-07 01:09:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:12,361 INFO L225 Difference]: With dead ends: 1010 [2021-11-07 01:09:12,361 INFO L226 Difference]: Without dead ends: 672 [2021-11-07 01:09:12,363 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:09:12,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-11-07 01:09:12,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 296. [2021-11-07 01:09:12,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 283 states have (on average 1.3215547703180213) internal successors, (374), 295 states have internal predecessors, (374), 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 01:09:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 374 transitions. [2021-11-07 01:09:12,382 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 374 transitions. Word has length 52 [2021-11-07 01:09:12,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:12,382 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 374 transitions. [2021-11-07 01:09:12,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 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 01:09:12,382 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 374 transitions. [2021-11-07 01:09:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:09:12,385 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:12,385 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 01:09:12,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 01:09:12,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:12,608 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:09:12,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:12,609 INFO L85 PathProgramCache]: Analyzing trace with hash 391742734, now seen corresponding path program 1 times [2021-11-07 01:09:12,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:12,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771087550] [2021-11-07 01:09:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:12,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:12,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:12,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:12,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efd74e8-9081-46c2-af4f-8bff96fc74ea/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:09:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:16,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 1857 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:09:16,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:17,595 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:09:17,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 01:09:17,813 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 01:09:17,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:29,018 WARN L207 SmtUtils]: Spent 10.64 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:09:29,026 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:09:29,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772