./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:08:25,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:08:25,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:08:25,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:08:25,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:08:25,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:08:25,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:08:25,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:08:25,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:08:25,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:08:25,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:08:25,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:08:25,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:08:25,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:08:25,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:08:25,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:08:25,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:08:25,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:08:25,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:08:25,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:08:25,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:08:25,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:08:25,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:08:25,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:08:25,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:08:25,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:08:25,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:08:25,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:08:25,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:08:25,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:08:25,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:08:25,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:08:25,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:08:25,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:08:25,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:08:25,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:08:25,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:08:25,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:08:25,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:08:25,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:08:25,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:08:25,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:08:25,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:08:25,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:08:25,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:08:25,314 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:08:25,314 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:08:25,315 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:08:25,315 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:08:25,323 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:08:25,323 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:08:25,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:08:25,325 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:08:25,325 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:08:25,326 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:08:25,326 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:08:25,326 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:08:25,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:08:25,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:08:25,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:08:25,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:08:25,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:08:25,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:08:25,328 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:08:25,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:08:25,329 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:08:25,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:08:25,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:08:25,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:08:25,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:25,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:08:25,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:08:25,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:08:25,331 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:08:25,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:08:25,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:08:25,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:08:25,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:08:25,333 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d [2021-11-07 01:08:25,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:08:25,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:08:25,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:08:25,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:08:25,657 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:08:25,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-07 01:08:25,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/9df6fae93/fee208fc907c48aa9516e5feec28cfd2/FLAGede95a665 [2021-11-07 01:08:26,798 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:08:26,799 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-07 01:08:26,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/9df6fae93/fee208fc907c48aa9516e5feec28cfd2/FLAGede95a665 [2021-11-07 01:08:27,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/9df6fae93/fee208fc907c48aa9516e5feec28cfd2 [2021-11-07 01:08:27,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:08:27,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:08:27,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:27,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:08:27,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:08:27,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:27" (1/1) ... [2021-11-07 01:08:27,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3633d0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:27, skipping insertion in model container [2021-11-07 01:08:27,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:27" (1/1) ... [2021-11-07 01:08:27,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:08:27,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:27,826 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-07 01:08:27,843 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-07 01:08:27,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:27,886 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:29,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:29,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:29,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:29,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:29,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:29,844 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:29,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:29,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:29,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:29,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:29,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:30,083 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:30,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:30,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:30,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:30,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:30,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:30,405 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 01:08:30,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54a3c3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:30, skipping insertion in model container [2021-11-07 01:08:30,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:30,406 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:08:30,410 INFO L168 Benchmark]: Toolchain (without parser) took 3257.70 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 51.5 MB in the beginning and 74.0 MB in the end (delta: -22.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:08:30,411 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:08:30,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3254.25 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 51.3 MB in the beginning and 74.0 MB in the end (delta: -22.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:08:30,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3254.25 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 51.3 MB in the beginning and 74.0 MB in the end (delta: -22.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6984]: 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:08:33,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:08:33,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:08:33,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:08:33,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:08:33,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:08:33,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:08:33,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:08:33,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:08:33,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:08:33,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:08:33,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:08:33,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:08:33,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:08:33,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:08:33,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:08:33,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:08:33,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:08:33,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:08:33,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:08:33,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:08:33,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:08:33,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:08:33,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:08:33,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:08:33,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:08:33,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:08:33,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:08:33,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:08:33,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:08:33,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:08:33,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:08:33,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:08:33,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:08:33,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:08:33,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:08:33,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:08:33,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:08:33,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:08:33,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:08:33,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:08:33,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:08:33,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:08:33,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:08:33,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:08:33,430 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:08:33,430 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:08:33,430 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:08:33,430 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:08:33,431 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:08:33,431 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:08:33,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:08:33,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:08:33,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:08:33,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:08:33,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:08:33,436 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:08:33,436 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:08:33,436 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:08:33,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:08:33,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:08:33,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:08:33,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:08:33,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:08:33,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:08:33,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:33,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:08:33,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:08:33,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:08:33,439 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:08:33,439 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:08:33,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:08:33,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:08:33,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:08:33,440 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d [2021-11-07 01:08:33,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:08:33,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:08:33,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:08:33,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:08:33,973 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:08:33,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-07 01:08:34,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/0c9101f23/97c8803054e449dea1de40cdc72a2e3c/FLAG000e5b69c [2021-11-07 01:08:35,187 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:08:35,189 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-07 01:08:35,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/0c9101f23/97c8803054e449dea1de40cdc72a2e3c/FLAG000e5b69c [2021-11-07 01:08:35,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/data/0c9101f23/97c8803054e449dea1de40cdc72a2e3c [2021-11-07 01:08:35,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:08:35,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:08:35,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:35,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:08:35,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:08:35,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:35" (1/1) ... [2021-11-07 01:08:35,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff0f734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:35, skipping insertion in model container [2021-11-07 01:08:35,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:35" (1/1) ... [2021-11-07 01:08:35,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:08:35,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:36,072 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-07 01:08:36,080 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-07 01:08:36,111 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:36,118 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:37,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:37,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:37,876 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:37,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:37,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:37,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:37,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:37,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:37,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:37,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:37,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:38,226 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:38,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,356 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:38,513 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:08:38,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:38,600 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-07 01:08:38,601 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-07 01:08:38,606 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:38,606 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:38,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,701 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:38,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:38,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:38,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:38,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:38,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:38,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:38,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:38,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:38,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:38,840 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:38,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:38,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:38,991 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:08:39,008 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-07 01:08:39,008 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_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-07 01:08:39,010 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:39,011 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:39,050 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,050 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,147 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:39,148 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:39,148 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:39,149 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:39,151 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:39,151 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:39,152 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:39,153 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:39,153 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:39,155 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:39,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:39,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:39,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:39,763 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:08:39,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39 WrapperNode [2021-11-07 01:08:39,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:39,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:08:39,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:08:39,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:08:39,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:39,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:08:40,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:08:40,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:08:40,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:08:40,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:08:40,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:08:40,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:08:40,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:08:40,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (1/1) ... [2021-11-07 01:08:40,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:40,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:08:40,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:08:40,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:08:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:08:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:08:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:08:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:08:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:08:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:08:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:08:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:08:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:08:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:08:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:08:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:08:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:08:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:08:57,951 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:08:57,951 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-11-07 01:08:57,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:08:57 BoogieIcfgContainer [2021-11-07 01:08:57,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:08:57,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:08:57,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:08:57,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:08:57,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:08:35" (1/3) ... [2021-11-07 01:08:57,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c88e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:08:57, skipping insertion in model container [2021-11-07 01:08:57,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:39" (2/3) ... [2021-11-07 01:08:57,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c88e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:08:57, skipping insertion in model container [2021-11-07 01:08:57,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:08:57" (3/3) ... [2021-11-07 01:08:57,965 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reserve_relative_harness.i [2021-11-07 01:08:57,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:08:57,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-07 01:08:58,034 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:08:58,050 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 01:08:58,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-07 01:08:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 224 states have (on average 1.4642857142857142) internal successors, (328), 231 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:08:58,106 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:58,108 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 01:08:58,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:08:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash -473287577, now seen corresponding path program 1 times [2021-11-07 01:08:58,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:58,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285284110] [2021-11-07 01:08:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:58,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:58,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:58,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:58,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:09:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:03,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:09:03,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:03,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:03,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:03,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285284110] [2021-11-07 01:09:03,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285284110] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:03,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:03,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:09:03,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268184939] [2021-11-07 01:09:03,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:09:03,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:03,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:09:03,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:09:03,680 INFO L87 Difference]: Start difference. First operand has 232 states, 224 states have (on average 1.4642857142857142) internal successors, (328), 231 states have internal predecessors, (328), 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 01:09:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:03,746 INFO L93 Difference]: Finished difference Result 457 states and 647 transitions. [2021-11-07 01:09:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:09:03,748 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 01:09:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:03,763 INFO L225 Difference]: With dead ends: 457 [2021-11-07 01:09:03,763 INFO L226 Difference]: Without dead ends: 227 [2021-11-07 01:09:03,768 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 01:09:03,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-07 01:09:03,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-07 01:09:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.3681818181818182) internal successors, (301), 226 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 301 transitions. [2021-11-07 01:09:03,826 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 301 transitions. Word has length 22 [2021-11-07 01:09:03,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:03,827 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 301 transitions. [2021-11-07 01:09:03,827 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 01:09:03,828 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 301 transitions. [2021-11-07 01:09:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:09:03,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:03,829 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 01:09:03,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:09:04,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:04,044 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:04,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:04,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2061635479, now seen corresponding path program 1 times [2021-11-07 01:09:04,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:04,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286965771] [2021-11-07 01:09:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:04,051 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:04,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:04,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:04,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:09:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:09,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:09:09,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:09,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:09,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:09,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286965771] [2021-11-07 01:09:09,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286965771] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:09,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:09,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:09:09,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204393418] [2021-11-07 01:09:09,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:09:09,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:09,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:09:09,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:09:09,493 INFO L87 Difference]: Start difference. First operand 227 states and 301 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 01:09:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:09,990 INFO L93 Difference]: Finished difference Result 431 states and 571 transitions. [2021-11-07 01:09:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:09:09,991 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 01:09:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:09,994 INFO L225 Difference]: With dead ends: 431 [2021-11-07 01:09:09,994 INFO L226 Difference]: Without dead ends: 227 [2021-11-07 01:09:09,997 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 01:09:09,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-07 01:09:10,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-07 01:09:10,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.3590909090909091) internal successors, (299), 226 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 299 transitions. [2021-11-07 01:09:10,016 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 299 transitions. Word has length 22 [2021-11-07 01:09:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:10,017 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 299 transitions. [2021-11-07 01:09:10,017 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 01:09:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 299 transitions. [2021-11-07 01:09:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:09:10,019 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:10,019 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 01:09:10,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:10,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:10,234 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:10,234 INFO L85 PathProgramCache]: Analyzing trace with hash 926477308, now seen corresponding path program 1 times [2021-11-07 01:09:10,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:10,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261502726] [2021-11-07 01:09:10,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:10,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:10,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:10,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:10,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:09:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:15,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:09:15,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:15,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:15,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:15,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:15,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261502726] [2021-11-07 01:09:15,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261502726] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:15,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:15,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:09:15,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848176433] [2021-11-07 01:09:15,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:09:15,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:09:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:09:15,665 INFO L87 Difference]: Start difference. First operand 227 states and 299 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 01:09:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:16,425 INFO L93 Difference]: Finished difference Result 616 states and 829 transitions. [2021-11-07 01:09:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:09:16,426 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 01:09:16,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:16,429 INFO L225 Difference]: With dead ends: 616 [2021-11-07 01:09:16,429 INFO L226 Difference]: Without dead ends: 403 [2021-11-07 01:09:16,431 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 01:09:16,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-07 01:09:16,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 243. [2021-11-07 01:09:16,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 236 states have (on average 1.3347457627118644) internal successors, (315), 242 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 315 transitions. [2021-11-07 01:09:16,451 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 315 transitions. Word has length 28 [2021-11-07 01:09:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:16,452 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 315 transitions. [2021-11-07 01:09:16,452 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 01:09:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 315 transitions. [2021-11-07 01:09:16,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:09:16,454 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:16,454 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 01:09:16,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:09:16,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:16,680 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:16,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash -94591046, now seen corresponding path program 1 times [2021-11-07 01:09:16,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:16,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478560863] [2021-11-07 01:09:16,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:16,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:16,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:16,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:16,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:09:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:21,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:09:21,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:21,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:21,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:21,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:21,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478560863] [2021-11-07 01:09:21,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478560863] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:21,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:21,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:09:21,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751900235] [2021-11-07 01:09:21,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:09:21,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:21,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:09:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:09:21,971 INFO L87 Difference]: Start difference. First operand 243 states and 315 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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 01:09:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:23,167 INFO L93 Difference]: Finished difference Result 622 states and 823 transitions. [2021-11-07 01:09:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:09:23,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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 01:09:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:23,171 INFO L225 Difference]: With dead ends: 622 [2021-11-07 01:09:23,171 INFO L226 Difference]: Without dead ends: 403 [2021-11-07 01:09:23,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:09:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-07 01:09:23,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 259. [2021-11-07 01:09:23,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 252 states have (on average 1.3134920634920635) internal successors, (331), 258 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:23,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 331 transitions. [2021-11-07 01:09:23,195 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 331 transitions. Word has length 28 [2021-11-07 01:09:23,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:23,195 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 331 transitions. [2021-11-07 01:09:23,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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 01:09:23,196 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 331 transitions. [2021-11-07 01:09:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:09:23,198 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:23,198 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 01:09:23,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:23,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:23,408 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:23,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1374345282, now seen corresponding path program 1 times [2021-11-07 01:09:23,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:23,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109637418] [2021-11-07 01:09:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:23,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:23,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:23,415 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:23,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:09:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:28,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:09:28,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:28,741 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 01:09:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:29,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:29,397 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 01:09:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:29,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:29,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109637418] [2021-11-07 01:09:29,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109637418] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:29,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:29,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-07 01:09:29,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646531682] [2021-11-07 01:09:29,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:09:29,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:29,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:09:29,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:09:29,734 INFO L87 Difference]: Start difference. First operand 259 states and 331 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:38,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:38,966 INFO L93 Difference]: Finished difference Result 764 states and 983 transitions. [2021-11-07 01:09:38,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 01:09:38,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 01:09:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:38,971 INFO L225 Difference]: With dead ends: 764 [2021-11-07 01:09:38,971 INFO L226 Difference]: Without dead ends: 531 [2021-11-07 01:09:38,974 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:09:38,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-07 01:09:39,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 394. [2021-11-07 01:09:39,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 387 states have (on average 1.3281653746770026) internal successors, (514), 393 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:39,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 514 transitions. [2021-11-07 01:09:39,009 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 514 transitions. Word has length 28 [2021-11-07 01:09:39,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:39,010 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 514 transitions. [2021-11-07 01:09:39,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:39,010 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 514 transitions. [2021-11-07 01:09:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:09:39,016 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:39,017 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 01:09:39,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:39,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:39,238 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:39,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:39,238 INFO L85 PathProgramCache]: Analyzing trace with hash -148609934, now seen corresponding path program 1 times [2021-11-07 01:09:39,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:39,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68142159] [2021-11-07 01:09:39,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:39,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:39,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:39,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:39,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:09:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:44,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:09:44,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:44,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:44,865 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:44,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68142159] [2021-11-07 01:09:44,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68142159] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:44,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:44,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:09:44,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575076937] [2021-11-07 01:09:44,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:09:44,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:44,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:09:44,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:09:44,869 INFO L87 Difference]: Start difference. First operand 394 states and 514 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:46,092 INFO L93 Difference]: Finished difference Result 965 states and 1234 transitions. [2021-11-07 01:09:46,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:09:46,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 01:09:46,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:46,097 INFO L225 Difference]: With dead ends: 965 [2021-11-07 01:09:46,098 INFO L226 Difference]: Without dead ends: 594 [2021-11-07 01:09:46,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:09:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-07 01:09:46,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 394. [2021-11-07 01:09:46,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 387 states have (on average 1.3255813953488371) internal successors, (513), 393 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 513 transitions. [2021-11-07 01:09:46,127 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 513 transitions. Word has length 32 [2021-11-07 01:09:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:46,128 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 513 transitions. [2021-11-07 01:09:46,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 513 transitions. [2021-11-07 01:09:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:09:46,130 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:46,130 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 01:09:46,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:46,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:46,344 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:46,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash 592046605, now seen corresponding path program 1 times [2021-11-07 01:09:46,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:46,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62051280] [2021-11-07 01:09:46,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:46,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:46,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:46,349 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:46,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:09:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:51,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:09:51,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:51,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:51,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:51,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62051280] [2021-11-07 01:09:51,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62051280] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:51,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:51,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:09:51,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969791983] [2021-11-07 01:09:51,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:09:51,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:51,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:09:51,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:09:51,426 INFO L87 Difference]: Start difference. First operand 394 states and 513 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:51,760 INFO L93 Difference]: Finished difference Result 635 states and 807 transitions. [2021-11-07 01:09:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:09:51,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 01:09:51,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:51,769 INFO L225 Difference]: With dead ends: 635 [2021-11-07 01:09:51,770 INFO L226 Difference]: Without dead ends: 591 [2021-11-07 01:09:51,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:09:51,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-11-07 01:09:51,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 398. [2021-11-07 01:09:51,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 391 states have (on average 1.3222506393861893) internal successors, (517), 397 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 517 transitions. [2021-11-07 01:09:51,797 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 517 transitions. Word has length 34 [2021-11-07 01:09:51,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:51,797 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 517 transitions. [2021-11-07 01:09:51,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:51,798 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 517 transitions. [2021-11-07 01:09:51,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 01:09:51,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:51,799 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:51,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:52,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:52,005 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:52,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1825558015, now seen corresponding path program 1 times [2021-11-07 01:09:52,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:52,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857175072] [2021-11-07 01:09:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:52,009 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:52,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:52,010 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:52,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:09:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:56,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:09:56,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:57,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:57,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:09:57,386 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:57,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857175072] [2021-11-07 01:09:57,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857175072] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:57,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:57,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:09:57,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671948787] [2021-11-07 01:09:57,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:09:57,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:57,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:09:57,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:09:57,388 INFO L87 Difference]: Start difference. First operand 398 states and 517 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:57,907 INFO L93 Difference]: Finished difference Result 744 states and 969 transitions. [2021-11-07 01:09:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:09:57,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-11-07 01:09:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:57,912 INFO L225 Difference]: With dead ends: 744 [2021-11-07 01:09:57,912 INFO L226 Difference]: Without dead ends: 398 [2021-11-07 01:09:57,913 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:09:57,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-07 01:09:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-11-07 01:09:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 391 states have (on average 1.3145780051150895) internal successors, (514), 397 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:57,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 514 transitions. [2021-11-07 01:09:57,936 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 514 transitions. Word has length 46 [2021-11-07 01:09:57,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:57,937 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 514 transitions. [2021-11-07 01:09:57,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:57,937 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 514 transitions. [2021-11-07 01:09:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:09:57,939 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:57,939 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:57,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:58,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:58,160 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:09:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash 887273475, now seen corresponding path program 1 times [2021-11-07 01:09:58,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:58,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285233914] [2021-11-07 01:09:58,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:58,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:58,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:58,165 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:58,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a110fbde-5f30-4bdd-8d4a-69b3e00d55c0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:10:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:02,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 01:10:02,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:04,150 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 01:10:04,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:17,197 WARN L207 SmtUtils]: Spent 11.85 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-07 01:10:17,209 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-07 01:10:17,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771