./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:57:13,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:57:13,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:57:13,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:57:13,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:57:13,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:57:13,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:57:13,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:57:13,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:57:13,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:57:13,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:57:13,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:57:13,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:57:13,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:57:13,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:57:13,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:57:13,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:57:13,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:57:13,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:57:13,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:57:13,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:57:13,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:57:13,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:57:13,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:57:13,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:57:13,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:57:13,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:57:13,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:57:13,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:57:13,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:57:13,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:57:13,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:57:13,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:57:13,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:57:13,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:57:13,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:57:13,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:57:13,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:57:13,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:57:13,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:57:13,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:57:13,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:57:13,954 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:57:13,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:57:13,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:57:13,960 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:57:13,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:57:13,961 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:57:13,961 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:57:13,961 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:57:13,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:57:13,969 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:57:13,971 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:57:13,971 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:57:13,972 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:57:13,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:57:13,972 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:57:13,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:57:13,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:57:13,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:57:13,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:57:13,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:57:13,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:57:13,978 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:57:13,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:57:13,979 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:57:13,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:57:13,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:57:13,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:57:13,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:57:13,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:57:13,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:57:13,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:57:13,984 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:57:13,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:57:13,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:57:13,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:57:13,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:57:13,985 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd [2021-11-07 01:57:14,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:57:14,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:57:14,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:57:14,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:57:14,290 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:57:14,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-07 01:57:14,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/001c233bc/408687b7099e4adc88db6a1d150972ff/FLAG2b6bc4fc9 [2021-11-07 01:57:15,291 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:57:15,292 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-07 01:57:15,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/001c233bc/408687b7099e4adc88db6a1d150972ff/FLAG2b6bc4fc9 [2021-11-07 01:57:15,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/001c233bc/408687b7099e4adc88db6a1d150972ff [2021-11-07 01:57:15,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:57:15,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:57:15,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:15,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:57:15,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:57:15,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:15" (1/1) ... [2021-11-07 01:57:15,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219956e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:15, skipping insertion in model container [2021-11-07 01:57:15,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:15" (1/1) ... [2021-11-07 01:57:15,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:57:15,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:16,169 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-07 01:57:16,177 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-07 01:57:16,204 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:57:16,210 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:57:17,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,663 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:57:17,664 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:57:17,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:57:17,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:57:17,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:57:17,669 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:57:17,670 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:57:17,670 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:57:17,671 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:57:17,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:57:17,864 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:57:17,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:17,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:18,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:18,152 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 01:57:18,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4cec7c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:18, skipping insertion in model container [2021-11-07 01:57:18,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:18,154 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:57:18,156 INFO L168 Benchmark]: Toolchain (without parser) took 2379.03 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 73.7 MB in the beginning and 87.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:57:18,157 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 113.2 MB. Free memory was 66.2 MB in the beginning and 66.1 MB in the end (delta: 59.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:57:18,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2376.34 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 73.5 MB in the beginning and 87.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:57:18,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 113.2 MB. Free memory was 66.2 MB in the beginning and 66.1 MB in the end (delta: 59.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2376.34 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 73.5 MB in the beginning and 87.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 28.6 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:57:20,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:57:20,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:57:20,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:57:20,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:57:20,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:57:20,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:57:20,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:57:20,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:57:20,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:57:20,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:57:20,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:57:20,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:57:20,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:57:20,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:57:20,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:57:20,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:57:20,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:57:20,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:57:20,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:57:20,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:57:20,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:57:20,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:57:20,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:57:20,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:57:20,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:57:20,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:57:20,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:57:20,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:57:20,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:57:20,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:57:20,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:57:20,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:57:20,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:57:20,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:57:20,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:57:20,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:57:20,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:57:20,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:57:20,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:57:20,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:57:20,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:57:20,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:57:20,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:57:20,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:57:20,871 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:57:20,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:57:20,871 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:57:20,872 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:57:20,872 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:57:20,872 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:57:20,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:57:20,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:57:20,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:57:20,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:57:20,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:57:20,874 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:57:20,874 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:57:20,874 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:57:20,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:57:20,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:57:20,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:57:20,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:57:20,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:57:20,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:57:20,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:57:20,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:57:20,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:57:20,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:57:20,876 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:57:20,876 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:57:20,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:57:20,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:57:20,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:57:20,877 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd [2021-11-07 01:57:21,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:57:21,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:57:21,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:57:21,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:57:21,307 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:57:21,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-07 01:57:21,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/6b2fe6301/223bb262b3db467dbd1fa1f7a9709527/FLAG99ef453de [2021-11-07 01:57:22,394 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:57:22,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-07 01:57:22,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/6b2fe6301/223bb262b3db467dbd1fa1f7a9709527/FLAG99ef453de [2021-11-07 01:57:22,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/data/6b2fe6301/223bb262b3db467dbd1fa1f7a9709527 [2021-11-07 01:57:22,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:57:22,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:57:22,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:22,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:57:22,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:57:22,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:22" (1/1) ... [2021-11-07 01:57:22,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6019f233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:22, skipping insertion in model container [2021-11-07 01:57:22,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:57:22" (1/1) ... [2021-11-07 01:57:22,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:57:22,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:23,138 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-07 01:57:23,145 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-07 01:57:23,170 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:57:23,177 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:57:24,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:24,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:57:24,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:57:24,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:57:24,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:57:24,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:57:24,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:57:24,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:57:24,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:57:24,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:57:24,662 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:57:24,874 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:57:25,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:25,220 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:57:25,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:57:25,348 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-07 01:57:25,348 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-07 01:57:25,351 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:57:25,352 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:57:25,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,443 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,506 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:57:25,507 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:57:25,508 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:57:25,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:57:25,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:57:25,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:57:25,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:57:25,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:57:25,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:57:25,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:57:25,547 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:57:25,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:25,739 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:57:25,771 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-07 01:57:25,771 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_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-07 01:57:25,773 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:57:25,774 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:57:25,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,836 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:25,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:57:25,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:57:25,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:57:25,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:57:25,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:57:25,885 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:57:25,886 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:57:25,886 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:57:25,887 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:57:25,887 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:57:25,917 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:57:26,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:26,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:57:26,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:57:26,573 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:57:26,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26 WrapperNode [2021-11-07 01:57:26,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:57:26,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:57:26,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:57:26,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:57:26,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:26,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:26,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:57:26,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:57:26,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:57:26,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:57:26,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:26,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:26,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:26,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:26,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:26,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:27,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:27,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:57:27,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:57:27,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:57:27,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:57:27,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (1/1) ... [2021-11-07 01:57:27,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:57:27,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:57:27,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:57:27,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:57:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:57:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:57:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:57:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:57:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:57:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:57:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:57:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:57:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:57:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:57:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:57:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:57:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:57:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:57:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:57:42,674 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:57:42,674 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-07 01:57:42,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:42 BoogieIcfgContainer [2021-11-07 01:57:42,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:57:42,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:57:42,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:57:42,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:57:42,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:57:22" (1/3) ... [2021-11-07 01:57:42,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a15ebcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:42, skipping insertion in model container [2021-11-07 01:57:42,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:57:26" (2/3) ... [2021-11-07 01:57:42,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a15ebcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:42, skipping insertion in model container [2021-11-07 01:57:42,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:42" (3/3) ... [2021-11-07 01:57:42,688 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reset_harness.i [2021-11-07 01:57:42,695 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:57:42,695 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 01:57:42,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:57:42,764 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 01:57:42,764 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 01:57:42,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 109 states have internal predecessors, (150), 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 01:57:42,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:57:42,792 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:42,793 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] [2021-11-07 01:57:42,793 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:57:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1062443937, now seen corresponding path program 1 times [2021-11-07 01:57:42,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:42,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963943199] [2021-11-07 01:57:42,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:42,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:42,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:42,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:42,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:57:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:47,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:57:47,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:48,023 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 01:57:48,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:48,102 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 01:57:48,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:48,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963943199] [2021-11-07 01:57:48,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963943199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:48,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:48,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:57:48,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046382251] [2021-11-07 01:57:48,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:57:48,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:48,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:57:48,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:57:48,132 INFO L87 Difference]: Start difference. First operand has 110 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 109 states have internal predecessors, (150), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 01:57:48,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:48,165 INFO L93 Difference]: Finished difference Result 216 states and 295 transitions. [2021-11-07 01:57:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:57:48,167 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2021-11-07 01:57:48,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:48,179 INFO L225 Difference]: With dead ends: 216 [2021-11-07 01:57:48,180 INFO L226 Difference]: Without dead ends: 103 [2021-11-07 01:57:48,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 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 01:57:48,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-07 01:57:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-07 01:57:48,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 102 states have internal predecessors, (128), 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 01:57:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 128 transitions. [2021-11-07 01:57:48,251 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 128 transitions. Word has length 22 [2021-11-07 01:57:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:48,251 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 128 transitions. [2021-11-07 01:57:48,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 01:57:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 128 transitions. [2021-11-07 01:57:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:57:48,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:48,253 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] [2021-11-07 01:57:48,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:57:48,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:48,469 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:57:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1987497567, now seen corresponding path program 1 times [2021-11-07 01:57:48,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:48,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637071088] [2021-11-07 01:57:48,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:48,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:48,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:48,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:57:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:53,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:57:53,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:57:53,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:53,980 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 01:57:53,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:53,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637071088] [2021-11-07 01:57:53,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637071088] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:53,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:53,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:57:53,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261651519] [2021-11-07 01:57:53,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:57:53,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:53,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:57:53,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:57:53,985 INFO L87 Difference]: Start difference. First operand 103 states and 128 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 01:57:54,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:54,353 INFO L93 Difference]: Finished difference Result 180 states and 222 transitions. [2021-11-07 01:57:54,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:57:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-11-07 01:57:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:54,358 INFO L225 Difference]: With dead ends: 180 [2021-11-07 01:57:54,359 INFO L226 Difference]: Without dead ends: 103 [2021-11-07 01:57:54,360 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 01:57:54,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-07 01:57:54,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-07 01:57:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.309278350515464) internal successors, (127), 102 states have internal predecessors, (127), 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 01:57:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2021-11-07 01:57:54,395 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 22 [2021-11-07 01:57:54,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:54,396 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2021-11-07 01:57:54,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 01:57:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2021-11-07 01:57:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:57:54,398 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:54,399 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] [2021-11-07 01:57:54,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:57:54,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:54,613 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:57:54,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1026351090, now seen corresponding path program 1 times [2021-11-07 01:57:54,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:54,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982195946] [2021-11-07 01:57:54,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:54,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:54,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:54,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:54,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:57:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:59,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:57:59,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:59,622 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 01:57:59,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:59,723 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 01:57:59,724 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:59,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982195946] [2021-11-07 01:57:59,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982195946] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:59,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:59,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:57:59,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569898294] [2021-11-07 01:57:59,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:57:59,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:59,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:57:59,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:57:59,727 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 01:58:00,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:00,041 INFO L93 Difference]: Finished difference Result 211 states and 264 transitions. [2021-11-07 01:58:00,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:58:00,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-11-07 01:58:00,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:00,043 INFO L225 Difference]: With dead ends: 211 [2021-11-07 01:58:00,044 INFO L226 Difference]: Without dead ends: 133 [2021-11-07 01:58:00,045 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 01:58:00,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-07 01:58:00,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 109. [2021-11-07 01:58:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 108 states have internal predecessors, (133), 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 01:58:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 133 transitions. [2021-11-07 01:58:00,057 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 133 transitions. Word has length 28 [2021-11-07 01:58:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:00,058 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 133 transitions. [2021-11-07 01:58:00,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 01:58:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 133 transitions. [2021-11-07 01:58:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:58:00,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:00,060 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] [2021-11-07 01:58:00,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:00,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:00,261 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:58:00,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:00,261 INFO L85 PathProgramCache]: Analyzing trace with hash -439545076, now seen corresponding path program 1 times [2021-11-07 01:58:00,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:00,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003407445] [2021-11-07 01:58:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:00,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:00,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:00,266 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:00,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:58:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:04,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:58:04,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:05,156 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 01:58:05,494 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 01:58:05,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:05,741 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 01:58:06,034 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 01:58:06,034 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:06,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003407445] [2021-11-07 01:58:06,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003407445] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:06,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:06,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:58:06,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097257682] [2021-11-07 01:58:06,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:58:06,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:06,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:58:06,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:58:06,038 INFO L87 Difference]: Start difference. First operand 109 states and 133 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 01:58:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:12,894 INFO L93 Difference]: Finished difference Result 214 states and 262 transitions. [2021-11-07 01:58:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:58:12,895 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 28 [2021-11-07 01:58:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:12,896 INFO L225 Difference]: With dead ends: 214 [2021-11-07 01:58:12,897 INFO L226 Difference]: Without dead ends: 132 [2021-11-07 01:58:12,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:58:12,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-07 01:58:12,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2021-11-07 01:58:12,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 106 states have internal predecessors, (130), 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 01:58:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2021-11-07 01:58:12,910 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 28 [2021-11-07 01:58:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:12,910 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2021-11-07 01:58:12,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 01:58:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2021-11-07 01:58:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:58:12,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:12,913 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] [2021-11-07 01:58:12,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:13,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:13,114 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:58:13,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1785426666, now seen corresponding path program 1 times [2021-11-07 01:58:13,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:13,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117547747] [2021-11-07 01:58:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:13,119 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:13,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:13,122 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:13,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:58:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:17,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:58:17,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:18,034 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:58:18,035 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 01:58:18,195 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 01:58:18,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:18,661 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 01:58:18,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:18,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117547747] [2021-11-07 01:58:18,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117547747] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:18,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:18,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:58:18,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877545332] [2021-11-07 01:58:18,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:58:18,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:18,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:58:18,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:58:18,666 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 01:58:30,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:30,894 INFO L93 Difference]: Finished difference Result 308 states and 373 transitions. [2021-11-07 01:58:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:58:30,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 32 [2021-11-07 01:58:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:30,899 INFO L225 Difference]: With dead ends: 308 [2021-11-07 01:58:30,900 INFO L226 Difference]: Without dead ends: 221 [2021-11-07 01:58:30,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 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 01:58:30,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-07 01:58:30,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 126. [2021-11-07 01:58:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 120 states have (on average 1.2833333333333334) internal successors, (154), 125 states have internal predecessors, (154), 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 01:58:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 154 transitions. [2021-11-07 01:58:30,919 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 154 transitions. Word has length 32 [2021-11-07 01:58:30,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:30,919 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 154 transitions. [2021-11-07 01:58:30,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 01:58:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions. [2021-11-07 01:58:30,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:58:30,922 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:30,922 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] [2021-11-07 01:58:30,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:31,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:31,129 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:58:31,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:31,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1498423380, now seen corresponding path program 1 times [2021-11-07 01:58:31,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:31,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701773362] [2021-11-07 01:58:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:31,134 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:31,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:31,137 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:31,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:58:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:36,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:58:36,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:36,549 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:58:36,550 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 01:58:37,163 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 01:58:37,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:37,804 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 01:58:37,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:37,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701773362] [2021-11-07 01:58:37,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701773362] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:37,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:37,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:58:37,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181641091] [2021-11-07 01:58:37,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:58:37,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:37,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:58:37,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:58:37,807 INFO L87 Difference]: Start difference. First operand 126 states and 154 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 01:59:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:03,150 INFO L93 Difference]: Finished difference Result 383 states and 439 transitions. [2021-11-07 01:59:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:59:03,153 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 32 [2021-11-07 01:59:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:03,156 INFO L225 Difference]: With dead ends: 383 [2021-11-07 01:59:03,156 INFO L226 Difference]: Without dead ends: 241 [2021-11-07 01:59:03,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:59:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-07 01:59:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 120. [2021-11-07 01:59:03,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 114 states have (on average 1.219298245614035) internal successors, (139), 119 states have internal predecessors, (139), 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 01:59:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2021-11-07 01:59:03,169 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 32 [2021-11-07 01:59:03,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:03,169 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-11-07 01:59:03,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 01:59:03,170 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2021-11-07 01:59:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:59:03,171 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:03,172 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] [2021-11-07 01:59:03,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:03,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:03,397 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:59:03,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:03,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1166089283, now seen corresponding path program 1 times [2021-11-07 01:59:03,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:03,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065450326] [2021-11-07 01:59:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:03,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:03,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:03,402 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:03,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:00:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:22,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 02:00:22,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:23,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:23,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:23,609 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:23,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:23,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:23,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:23,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:23,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:23,703 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:23,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 118 treesize of output 96 [2021-11-07 02:00:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:23,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:00:25,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:00:25,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065450326] [2021-11-07 02:00:25,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065450326] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:25,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:00:25,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 11 [2021-11-07 02:00:25,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010330727] [2021-11-07 02:00:25,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:00:25,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:00:25,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:00:25,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:00:25,099 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:47,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:00:47,247 INFO L93 Difference]: Finished difference Result 415 states and 474 transitions. [2021-11-07 02:00:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 02:00:47,250 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 02:00:47,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:00:47,253 INFO L225 Difference]: With dead ends: 415 [2021-11-07 02:00:47,253 INFO L226 Difference]: Without dead ends: 342 [2021-11-07 02:00:47,254 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=236, Invalid=576, Unknown=0, NotChecked=0, Total=812 [2021-11-07 02:00:47,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-07 02:00:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 193. [2021-11-07 02:00:47,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 187 states have (on average 1.2299465240641712) internal successors, (230), 192 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 230 transitions. [2021-11-07 02:00:47,271 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 230 transitions. Word has length 34 [2021-11-07 02:00:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:00:47,272 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 230 transitions. [2021-11-07 02:00:47,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:00:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 230 transitions. [2021-11-07 02:00:47,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:00:47,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:47,274 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] [2021-11-07 02:00:47,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:00:47,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:00:47,485 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:00:47,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:47,486 INFO L85 PathProgramCache]: Analyzing trace with hash 374795903, now seen corresponding path program 1 times [2021-11-07 02:00:47,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:00:47,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951817571] [2021-11-07 02:00:47,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:47,490 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:00:47,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:00:47,491 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:00:47,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415d4aef-8590-4e4b-a8ff-bd8c84ec8294/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:06:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:31,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 02:06:31,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:31,854 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 13 treesize of output 9 [2021-11-07 02:06:31,915 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 13 treesize of output 9 [2021-11-07 02:06:31,923 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 13 treesize of output 9 [2021-11-07 02:06:32,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:06:32,385 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 02:06:32,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 36 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 22 [2021-11-07 02:06:32,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,517 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-07 02:06:32,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:06:32,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:06:32,553 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 02:06:32,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 36 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 22 [2021-11-07 02:06:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:06:32,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:33,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:06:33,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 545 [2021-11-07 02:06:33,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:06:33,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 872 [2021-11-07 02:07:26,110 WARN L207 SmtUtils]: Spent 28.45 s on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-11-07 02:07:26,112 INFO L354 Elim1Store]: treesize reduction 55, result has 48.1 percent of original size [2021-11-07 02:07:26,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43160126357744 treesize of output 37658273251598