./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:23:34,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:23:34,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:23:34,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:23:34,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:23:34,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:23:34,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:23:34,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:23:34,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:23:34,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:23:34,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:23:34,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:23:34,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:23:34,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:23:34,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:23:34,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:23:34,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:23:34,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:23:34,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:23:34,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:23:34,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:23:34,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:23:34,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:23:34,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:23:34,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:23:34,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:23:34,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:23:34,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:23:34,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:23:34,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:23:34,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:23:34,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:23:34,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:23:34,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:23:34,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:23:34,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:23:34,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:23:34,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:23:34,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:23:34,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:23:34,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:23:34,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:23:34,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:23:34,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:23:34,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:23:34,346 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:23:34,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:23:34,346 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:23:34,346 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:23:34,346 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:23:34,347 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:23:34,347 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:23:34,353 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:23:34,354 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:23:34,354 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:23:34,354 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:23:34,354 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:23:34,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:23:34,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:23:34,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:23:34,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:23:34,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:23:34,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:23:34,356 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:23:34,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:23:34,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:23:34,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:23:34,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:23:34,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:23:34,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:23:34,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:23:34,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:23:34,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:23:34,360 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:23:34,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:23:34,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:23:34,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:23:34,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:23:34,361 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2021-11-07 01:23:34,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:23:34,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:23:34,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:23:34,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:23:34,679 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:23:34,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-07 01:23:34,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/365289c77/fe17e6c6454c4b4d9e758b80fb7d0271/FLAG5a9f9f922 [2021-11-07 01:23:35,507 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:23:35,508 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-07 01:23:35,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/365289c77/fe17e6c6454c4b4d9e758b80fb7d0271/FLAG5a9f9f922 [2021-11-07 01:23:35,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/365289c77/fe17e6c6454c4b4d9e758b80fb7d0271 [2021-11-07 01:23:35,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:23:35,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:23:35,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:35,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:23:35,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:23:35,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:35" (1/1) ... [2021-11-07 01:23:35,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3203d3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:35, skipping insertion in model container [2021-11-07 01:23:35,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:35" (1/1) ... [2021-11-07 01:23:35,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:23:35,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:23:36,233 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-07 01:23:36,242 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-07 01:23:36,275 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:36,288 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:37,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:37,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:37,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:37,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:37,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:37,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:37,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:37,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:37,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:37,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:37,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:38,191 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:38,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:38,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:38,768 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 01:23:38,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51e1d0cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:38, skipping insertion in model container [2021-11-07 01:23:38,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:38,769 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:23:38,772 INFO L168 Benchmark]: Toolchain (without parser) took 3006.01 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 80.1 MB in the beginning and 67.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:23:38,772 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 83.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:23:38,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3001.95 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 79.7 MB in the beginning and 67.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:23:38,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 83.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3001.95 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 79.7 MB in the beginning and 67.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:23:40,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:23:40,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:23:41,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:23:41,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:23:41,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:23:41,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:23:41,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:23:41,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:23:41,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:23:41,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:23:41,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:23:41,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:23:41,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:23:41,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:23:41,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:23:41,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:23:41,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:23:41,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:23:41,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:23:41,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:23:41,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:23:41,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:23:41,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:23:41,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:23:41,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:23:41,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:23:41,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:23:41,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:23:41,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:23:41,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:23:41,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:23:41,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:23:41,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:23:41,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:23:41,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:23:41,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:23:41,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:23:41,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:23:41,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:23:41,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:23:41,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:23:41,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:23:41,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:23:41,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:23:41,158 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:23:41,159 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:23:41,159 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:23:41,159 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:23:41,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:23:41,159 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:23:41,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:23:41,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:23:41,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:23:41,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:23:41,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:23:41,163 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:23:41,163 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:23:41,163 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:23:41,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:23:41,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:23:41,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:23:41,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:23:41,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:23:41,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:23:41,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:23:41,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:23:41,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:23:41,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:23:41,166 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:23:41,166 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:23:41,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:23:41,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:23:41,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:23:41,167 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2021-11-07 01:23:41,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:23:41,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:23:41,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:23:41,577 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:23:41,578 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:23:41,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-07 01:23:41,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/3508ce10a/52fa83613d674108b2c6907d295df5e6/FLAGf11fdca13 [2021-11-07 01:23:42,643 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:23:42,644 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-07 01:23:42,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/3508ce10a/52fa83613d674108b2c6907d295df5e6/FLAGf11fdca13 [2021-11-07 01:23:43,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/data/3508ce10a/52fa83613d674108b2c6907d295df5e6 [2021-11-07 01:23:43,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:23:43,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:23:43,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:43,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:23:43,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:23:43,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:43" (1/1) ... [2021-11-07 01:23:43,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757c1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:43, skipping insertion in model container [2021-11-07 01:23:43,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:43" (1/1) ... [2021-11-07 01:23:43,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:23:43,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:23:43,523 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-07 01:23:43,530 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-07 01:23:43,563 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:43,574 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:44,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,449 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,449 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,451 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,472 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:44,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,036 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:45,037 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:45,038 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:45,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:45,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:45,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:45,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:45,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:45,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:45,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:45,268 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:45,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,684 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,706 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,706 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:45,797 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:23:45,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:23:45,865 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-07 01:23:45,865 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-07 01:23:45,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:45,872 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:45,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:45,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:45,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:45,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:45,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:45,988 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:45,988 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:45,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:45,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:45,990 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:45,990 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:46,018 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:46,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:46,244 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:23:46,269 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-07 01:23:46,270 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_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-07 01:23:46,271 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:46,273 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:46,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:46,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:46,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:46,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:46,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:46,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:46,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:46,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:46,374 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:46,375 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:46,400 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:46,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:46,863 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:23:46,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46 WrapperNode [2021-11-07 01:23:46,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:46,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:23:46,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:23:46,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:23:46,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:23:47,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:23:47,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:23:47,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:23:47,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:23:47,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:23:47,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:23:47,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:23:47,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (1/1) ... [2021-11-07 01:23:47,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:23:47,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:23:47,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:23:47,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:23:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 01:23:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:23:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:23:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:23:47,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:23:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:23:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:23:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:23:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:23:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:23:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:23:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:23:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:23:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:23:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:23:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:23:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:23:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:23:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:23:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:24:05,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:24:05,410 INFO L299 CfgBuilder]: Removed 167 assume(true) statements. [2021-11-07 01:24:05,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:05 BoogieIcfgContainer [2021-11-07 01:24:05,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:24:05,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:24:05,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:24:05,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:24:05,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:23:43" (1/3) ... [2021-11-07 01:24:05,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587ceeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:05, skipping insertion in model container [2021-11-07 01:24:05,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:46" (2/3) ... [2021-11-07 01:24:05,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587ceeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:05, skipping insertion in model container [2021-11-07 01:24:05,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:05" (3/3) ... [2021-11-07 01:24:05,422 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2021-11-07 01:24:05,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:24:05,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 01:24:05,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:24:05,483 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 01:24:05,484 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 01:24:05,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 239 states have internal predecessors, (342), 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 01:24:05,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 01:24:05,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:05,514 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:05,514 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:24:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:05,520 INFO L85 PathProgramCache]: Analyzing trace with hash -731406764, now seen corresponding path program 1 times [2021-11-07 01:24:05,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:05,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925400583] [2021-11-07 01:24:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:05,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:05,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:05,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:05,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:24:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:09,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:24:09,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:10,229 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 01:24:10,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:10,552 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 01:24:10,553 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:10,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925400583] [2021-11-07 01:24:10,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925400583] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:10,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:10,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:24:10,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278101930] [2021-11-07 01:24:10,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:24:10,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:10,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:24:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:24:10,594 INFO L87 Difference]: Start difference. First operand has 240 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 239 states have internal predecessors, (342), 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 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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 01:24:10,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:10,661 INFO L93 Difference]: Finished difference Result 476 states and 679 transitions. [2021-11-07 01:24:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:24:10,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2021-11-07 01:24:10,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:10,681 INFO L225 Difference]: With dead ends: 476 [2021-11-07 01:24:10,682 INFO L226 Difference]: Without dead ends: 234 [2021-11-07 01:24:10,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 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 01:24:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-07 01:24:10,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-07 01:24:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3982300884955752) internal successors, (316), 233 states have internal predecessors, (316), 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 01:24:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 316 transitions. [2021-11-07 01:24:10,758 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 316 transitions. Word has length 61 [2021-11-07 01:24:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:10,758 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 316 transitions. [2021-11-07 01:24:10,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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 01:24:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 316 transitions. [2021-11-07 01:24:10,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 01:24:10,770 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:10,770 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:10,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:10,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:10,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:24:10,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:10,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1678373439, now seen corresponding path program 1 times [2021-11-07 01:24:10,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:10,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169849695] [2021-11-07 01:24:10,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:10,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:10,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:10,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:11,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:24:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:15,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:15,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:15,594 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 01:24:15,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:15,870 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 01:24:15,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:15,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169849695] [2021-11-07 01:24:15,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169849695] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:15,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:15,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:24:15,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955007636] [2021-11-07 01:24:15,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:15,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:15,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:15,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:15,874 INFO L87 Difference]: Start difference. First operand 234 states and 316 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 01:24:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:16,310 INFO L93 Difference]: Finished difference Result 664 states and 904 transitions. [2021-11-07 01:24:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:16,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2021-11-07 01:24:16,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:16,321 INFO L225 Difference]: With dead ends: 664 [2021-11-07 01:24:16,321 INFO L226 Difference]: Without dead ends: 452 [2021-11-07 01:24:16,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-11-07 01:24:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 240. [2021-11-07 01:24:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 232 states have (on average 1.3879310344827587) internal successors, (322), 239 states have internal predecessors, (322), 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 01:24:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 322 transitions. [2021-11-07 01:24:16,355 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 322 transitions. Word has length 61 [2021-11-07 01:24:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:16,355 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 322 transitions. [2021-11-07 01:24:16,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 01:24:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 322 transitions. [2021-11-07 01:24:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 01:24:16,357 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:16,357 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:16,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:16,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:16,571 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:24:16,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash 453199775, now seen corresponding path program 1 times [2021-11-07 01:24:16,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:16,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946667129] [2021-11-07 01:24:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:16,575 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:16,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:16,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:16,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:24:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:20,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:24:20,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:20,894 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 01:24:20,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:21,221 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 01:24:21,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:21,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946667129] [2021-11-07 01:24:21,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946667129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:21,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:21,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:24:21,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834275474] [2021-11-07 01:24:21,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:21,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:21,223 INFO L87 Difference]: Start difference. First operand 240 states and 322 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 01:24:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:21,500 INFO L93 Difference]: Finished difference Result 457 states and 617 transitions. [2021-11-07 01:24:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:24:21,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 65 [2021-11-07 01:24:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:21,505 INFO L225 Difference]: With dead ends: 457 [2021-11-07 01:24:21,505 INFO L226 Difference]: Without dead ends: 240 [2021-11-07 01:24:21,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:24:21,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-07 01:24:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2021-11-07 01:24:21,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3805309734513274) internal successors, (312), 233 states have internal predecessors, (312), 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 01:24:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 312 transitions. [2021-11-07 01:24:21,518 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 312 transitions. Word has length 65 [2021-11-07 01:24:21,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:21,519 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 312 transitions. [2021-11-07 01:24:21,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 01:24:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 312 transitions. [2021-11-07 01:24:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 01:24:21,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:21,521 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:21,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:21,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:21,722 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:24:21,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash 987656780, now seen corresponding path program 1 times [2021-11-07 01:24:21,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:21,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562443381] [2021-11-07 01:24:21,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:21,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:21,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:21,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:21,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:24:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:26,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:24:26,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:26,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:24:27,272 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 01:24:27,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:27,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 01:24:27,944 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 01:24:27,945 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:27,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562443381] [2021-11-07 01:24:27,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562443381] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:27,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:27,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 01:24:27,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734890461] [2021-11-07 01:24:27,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:24:27,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:27,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:24:27,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:24:27,948 INFO L87 Difference]: Start difference. First operand 234 states and 312 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 01:24:58,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:58,586 INFO L93 Difference]: Finished difference Result 526 states and 703 transitions. [2021-11-07 01:24:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:24:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 01:24:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:58,592 INFO L225 Difference]: With dead ends: 526 [2021-11-07 01:24:58,592 INFO L226 Difference]: Without dead ends: 327 [2021-11-07 01:24:58,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:24:58,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-11-07 01:24:58,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 236. [2021-11-07 01:24:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 228 states have (on average 1.3771929824561404) internal successors, (314), 235 states have internal predecessors, (314), 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 01:24:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 314 transitions. [2021-11-07 01:24:58,610 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 314 transitions. Word has length 71 [2021-11-07 01:24:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:58,610 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 314 transitions. [2021-11-07 01:24:58,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 01:24:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 314 transitions. [2021-11-07 01:24:58,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 01:24:58,612 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:58,612 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:58,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:24:58,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:58,835 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:24:58,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:58,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1379037814, now seen corresponding path program 1 times [2021-11-07 01:24:58,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:58,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470032552] [2021-11-07 01:24:58,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:58,839 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:58,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:58,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:58,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:25:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:03,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:25:03,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:03,731 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 01:25:03,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:04,173 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 01:25:04,173 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:04,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470032552] [2021-11-07 01:25:04,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470032552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:04,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:04,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:25:04,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947725674] [2021-11-07 01:25:04,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:04,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:04,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:04,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:04,179 INFO L87 Difference]: Start difference. First operand 236 states and 314 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 01:25:04,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:04,449 INFO L93 Difference]: Finished difference Result 438 states and 590 transitions. [2021-11-07 01:25:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:04,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-07 01:25:04,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:04,454 INFO L225 Difference]: With dead ends: 438 [2021-11-07 01:25:04,455 INFO L226 Difference]: Without dead ends: 234 [2021-11-07 01:25:04,455 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 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 01:25:04,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-07 01:25:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-07 01:25:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3672566371681416) internal successors, (309), 233 states have internal predecessors, (309), 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 01:25:04,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 309 transitions. [2021-11-07 01:25:04,470 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 309 transitions. Word has length 71 [2021-11-07 01:25:04,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:04,471 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 309 transitions. [2021-11-07 01:25:04,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 01:25:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 309 transitions. [2021-11-07 01:25:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 01:25:04,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:04,473 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:04,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:04,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:04,699 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:25:04,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash 319727697, now seen corresponding path program 1 times [2021-11-07 01:25:04,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:04,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852536258] [2021-11-07 01:25:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:04,705 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:04,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:04,706 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:04,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:25:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:09,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:25:09,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:10,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:25:10,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 01:25:10,518 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 01:25:10,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:10,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 01:25:11,182 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 01:25:11,182 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:11,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852536258] [2021-11-07 01:25:11,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852536258] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:11,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:11,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:25:11,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012700092] [2021-11-07 01:25:11,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:25:11,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:11,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:25:11,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:11,185 INFO L87 Difference]: Start difference. First operand 234 states and 309 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:36,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:36,191 INFO L93 Difference]: Finished difference Result 740 states and 989 transitions. [2021-11-07 01:25:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:25:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 01:25:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:36,197 INFO L225 Difference]: With dead ends: 740 [2021-11-07 01:25:36,197 INFO L226 Difference]: Without dead ends: 540 [2021-11-07 01:25:36,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:25:36,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-11-07 01:25:36,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 234. [2021-11-07 01:25:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3628318584070795) internal successors, (308), 233 states have internal predecessors, (308), 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 01:25:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 308 transitions. [2021-11-07 01:25:36,215 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 308 transitions. Word has length 73 [2021-11-07 01:25:36,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:36,215 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 308 transitions. [2021-11-07 01:25:36,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 308 transitions. [2021-11-07 01:25:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 01:25:36,217 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:36,217 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:36,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:36,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:36,431 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:25:36,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash 568545786, now seen corresponding path program 1 times [2021-11-07 01:25:36,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:36,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556449300] [2021-11-07 01:25:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:36,434 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:36,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:36,435 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:36,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:25:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:40,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:40,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:41,039 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 01:25:41,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:41,275 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:41,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556449300] [2021-11-07 01:25:41,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556449300] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:41,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:41,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:25:41,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709646352] [2021-11-07 01:25:41,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:25:41,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:41,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:25:41,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:25:41,278 INFO L87 Difference]: Start difference. First operand 234 states and 308 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 01:25:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:44,015 INFO L93 Difference]: Finished difference Result 409 states and 543 transitions. [2021-11-07 01:25:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:25:44,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-07 01:25:44,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:44,022 INFO L225 Difference]: With dead ends: 409 [2021-11-07 01:25:44,022 INFO L226 Difference]: Without dead ends: 234 [2021-11-07 01:25:44,023 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:25:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-07 01:25:44,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-07 01:25:44,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3584070796460177) internal successors, (307), 233 states have internal predecessors, (307), 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 01:25:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 307 transitions. [2021-11-07 01:25:44,038 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 307 transitions. Word has length 74 [2021-11-07 01:25:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:44,038 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 307 transitions. [2021-11-07 01:25:44,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 01:25:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 307 transitions. [2021-11-07 01:25:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:25:44,040 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:44,040 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:44,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:44,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:44,247 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:25:44,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:44,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1694478960, now seen corresponding path program 1 times [2021-11-07 01:25:44,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:44,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063272102] [2021-11-07 01:25:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:44,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:44,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:44,254 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:44,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:25:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:48,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:25:48,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:49,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:25:49,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 01:25:49,309 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 01:25:49,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:49,745 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 01:25:49,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:49,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063272102] [2021-11-07 01:25:49,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063272102] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:49,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:49,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:25:49,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984682092] [2021-11-07 01:25:49,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:49,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:49,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:49,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:49,748 INFO L87 Difference]: Start difference. First operand 234 states and 307 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:58,631 INFO L93 Difference]: Finished difference Result 426 states and 561 transitions. [2021-11-07 01:25:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:58,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-07 01:25:58,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:58,635 INFO L225 Difference]: With dead ends: 426 [2021-11-07 01:25:58,635 INFO L226 Difference]: Without dead ends: 251 [2021-11-07 01:25:58,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:58,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-07 01:25:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 234. [2021-11-07 01:25:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3539823008849559) internal successors, (306), 233 states have internal predecessors, (306), 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 01:25:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 306 transitions. [2021-11-07 01:25:58,647 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 306 transitions. Word has length 75 [2021-11-07 01:25:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:58,648 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 306 transitions. [2021-11-07 01:25:58,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:58,648 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 306 transitions. [2021-11-07 01:25:58,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 01:25:58,649 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:58,649 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:58,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:58,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:58,875 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:25:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:58,875 INFO L85 PathProgramCache]: Analyzing trace with hash -715712101, now seen corresponding path program 1 times [2021-11-07 01:25:58,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:58,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577330610] [2021-11-07 01:25:58,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:58,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:58,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:58,879 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:58,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:26:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:03,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:26:03,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:03,914 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 01:26:03,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:04,157 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 01:26:04,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:04,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577330610] [2021-11-07 01:26:04,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577330610] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:04,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:04,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:26:04,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404074454] [2021-11-07 01:26:04,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:26:04,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:04,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:26:04,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:26:04,159 INFO L87 Difference]: Start difference. First operand 234 states and 306 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:26:06,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:06,532 INFO L93 Difference]: Finished difference Result 461 states and 597 transitions. [2021-11-07 01:26:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:26:06,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2021-11-07 01:26:06,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:06,535 INFO L225 Difference]: With dead ends: 461 [2021-11-07 01:26:06,535 INFO L226 Difference]: Without dead ends: 282 [2021-11-07 01:26:06,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 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 01:26:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-07 01:26:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 232. [2021-11-07 01:26:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 224 states have (on average 1.3214285714285714) internal successors, (296), 231 states have internal predecessors, (296), 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 01:26:06,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 296 transitions. [2021-11-07 01:26:06,550 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 296 transitions. Word has length 81 [2021-11-07 01:26:06,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:06,550 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 296 transitions. [2021-11-07 01:26:06,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:26:06,551 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 296 transitions. [2021-11-07 01:26:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 01:26:06,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:06,552 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:06,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:06,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:06,759 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:26:06,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:06,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1240502002, now seen corresponding path program 1 times [2021-11-07 01:26:06,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:06,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647626088] [2021-11-07 01:26:06,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:06,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:06,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:06,767 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:06,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:26:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:11,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:26:11,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:11,802 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 01:26:11,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:12,138 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 01:26:12,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:12,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647626088] [2021-11-07 01:26:12,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647626088] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:12,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:12,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:26:12,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726700521] [2021-11-07 01:26:12,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:12,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:12,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:12,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:26:12,143 INFO L87 Difference]: Start difference. First operand 232 states and 296 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 01:26:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:14,700 INFO L93 Difference]: Finished difference Result 487 states and 623 transitions. [2021-11-07 01:26:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:26:14,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 92 [2021-11-07 01:26:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:14,702 INFO L225 Difference]: With dead ends: 487 [2021-11-07 01:26:14,702 INFO L226 Difference]: Without dead ends: 299 [2021-11-07 01:26:14,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:26:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-07 01:26:14,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 241. [2021-11-07 01:26:14,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 233 states have (on average 1.3004291845493563) internal successors, (303), 240 states have internal predecessors, (303), 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 01:26:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 303 transitions. [2021-11-07 01:26:14,720 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 303 transitions. Word has length 92 [2021-11-07 01:26:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:14,720 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 303 transitions. [2021-11-07 01:26:14,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 01:26:14,721 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 303 transitions. [2021-11-07 01:26:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 01:26:14,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:14,722 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:14,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:14,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:14,943 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:26:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:14,943 INFO L85 PathProgramCache]: Analyzing trace with hash 378447726, now seen corresponding path program 1 times [2021-11-07 01:26:14,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:14,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238664451] [2021-11-07 01:26:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:14,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:14,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:14,947 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:14,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:26:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:19,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:26:19,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:20,021 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 32 treesize of output 24 [2021-11-07 01:26:20,027 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 21 treesize of output 13 [2021-11-07 01:26:20,285 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 01:26:20,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:20,783 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 01:26:20,783 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:20,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238664451] [2021-11-07 01:26:20,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238664451] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:20,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:20,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:26:20,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764013427] [2021-11-07 01:26:20,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:26:20,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:20,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:26:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:26:20,786 INFO L87 Difference]: Start difference. First operand 241 states and 303 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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 01:26:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:36,536 INFO L93 Difference]: Finished difference Result 478 states and 608 transitions. [2021-11-07 01:26:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:26:36,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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 96 [2021-11-07 01:26:36,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:36,541 INFO L225 Difference]: With dead ends: 478 [2021-11-07 01:26:36,541 INFO L226 Difference]: Without dead ends: 283 [2021-11-07 01:26:36,542 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:26:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-07 01:26:36,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 241. [2021-11-07 01:26:36,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 233 states have (on average 1.2703862660944205) internal successors, (296), 240 states have internal predecessors, (296), 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 01:26:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 296 transitions. [2021-11-07 01:26:36,559 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 296 transitions. Word has length 96 [2021-11-07 01:26:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:36,560 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 296 transitions. [2021-11-07 01:26:36,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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 01:26:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 296 transitions. [2021-11-07 01:26:36,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 01:26:36,561 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:36,561 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:36,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:36,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:36,771 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:26:36,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1820616346, now seen corresponding path program 1 times [2021-11-07 01:26:36,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:36,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910827557] [2021-11-07 01:26:36,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:36,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:36,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:36,775 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:36,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:26:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:41,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 01:26:41,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:43,252 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:43,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 54 [2021-11-07 01:26:43,296 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:43,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2021-11-07 01:26:43,739 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 01:26:43,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:45,042 INFO L354 Elim1Store]: treesize reduction 8, result has 91.2 percent of original size [2021-11-07 01:26:45,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 122 [2021-11-07 01:26:45,349 INFO L354 Elim1Store]: treesize reduction 22, result has 67.2 percent of original size [2021-11-07 01:26:45,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 122 [2021-11-07 01:26:48,057 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 01:26:48,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:48,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910827557] [2021-11-07 01:26:48,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910827557] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:48,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:48,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 15 [2021-11-07 01:26:48,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535024256] [2021-11-07 01:26:48,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 01:26:48,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:48,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 01:26:48,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:26:48,059 INFO L87 Difference]: Start difference. First operand 241 states and 296 transitions. Second operand has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 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 01:27:31,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:31,433 INFO L93 Difference]: Finished difference Result 589 states and 728 transitions. [2021-11-07 01:27:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 01:27:31,436 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 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 98 [2021-11-07 01:27:31,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:31,440 INFO L225 Difference]: With dead ends: 589 [2021-11-07 01:27:31,440 INFO L226 Difference]: Without dead ends: 462 [2021-11-07 01:27:31,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 01:27:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-11-07 01:27:31,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 273. [2021-11-07 01:27:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 265 states have (on average 1.290566037735849) internal successors, (342), 272 states have internal predecessors, (342), 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 01:27:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 342 transitions. [2021-11-07 01:27:31,464 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 342 transitions. Word has length 98 [2021-11-07 01:27:31,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:31,464 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 342 transitions. [2021-11-07 01:27:31,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 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 01:27:31,464 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 342 transitions. [2021-11-07 01:27:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 01:27:31,465 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:31,465 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:31,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:31,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:27:31,666 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:27:31,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1887544936, now seen corresponding path program 1 times [2021-11-07 01:27:31,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:31,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976430288] [2021-11-07 01:27:31,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:31,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:31,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:31,671 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:31,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:27:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:37,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:27:37,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:37,737 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 35 treesize of output 27 [2021-11-07 01:27:37,745 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 27 treesize of output 19 [2021-11-07 01:27:37,868 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 01:27:37,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:38,435 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-11-07 01:27:38,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-11-07 01:27:38,451 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-07 01:27:38,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2021-11-07 01:27:38,573 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 01:27:38,573 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:27:38,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976430288] [2021-11-07 01:27:38,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976430288] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:27:38,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:27:38,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-07 01:27:38,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479630173] [2021-11-07 01:27:38,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:27:38,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:27:38,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:27:38,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:27:38,575 INFO L87 Difference]: Start difference. First operand 273 states and 342 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 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 01:27:58,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:58,308 INFO L93 Difference]: Finished difference Result 670 states and 847 transitions. [2021-11-07 01:27:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:27:58,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 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 98 [2021-11-07 01:27:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:58,313 INFO L225 Difference]: With dead ends: 670 [2021-11-07 01:27:58,313 INFO L226 Difference]: Without dead ends: 484 [2021-11-07 01:27:58,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:27:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-07 01:27:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 271. [2021-11-07 01:27:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 263 states have (on average 1.273764258555133) internal successors, (335), 270 states have internal predecessors, (335), 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 01:27:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 335 transitions. [2021-11-07 01:27:58,337 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 335 transitions. Word has length 98 [2021-11-07 01:27:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:58,338 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 335 transitions. [2021-11-07 01:27:58,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 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 01:27:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 335 transitions. [2021-11-07 01:27:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 01:27:58,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:58,340 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:58,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:58,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:27:58,555 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:27:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:58,555 INFO L85 PathProgramCache]: Analyzing trace with hash 557058740, now seen corresponding path program 1 times [2021-11-07 01:27:58,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:58,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859719184] [2021-11-07 01:27:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:58,558 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:58,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:58,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:58,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 01:28:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:28:03,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:28:03,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:28:04,730 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 01:28:04,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:28:05,228 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 01:28:05,229 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:28:05,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859719184] [2021-11-07 01:28:05,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859719184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:28:05,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:28:05,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:28:05,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755450970] [2021-11-07 01:28:05,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:28:05,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:28:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:28:05,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:28:05,231 INFO L87 Difference]: Start difference. First operand 271 states and 335 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 01:28:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:28:10,428 INFO L93 Difference]: Finished difference Result 458 states and 570 transitions. [2021-11-07 01:28:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:28:10,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 101 [2021-11-07 01:28:10,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:28:10,435 INFO L225 Difference]: With dead ends: 458 [2021-11-07 01:28:10,435 INFO L226 Difference]: Without dead ends: 362 [2021-11-07 01:28:10,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:28:10,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-07 01:28:10,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 304. [2021-11-07 01:28:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.2804054054054055) internal successors, (379), 303 states have internal predecessors, (379), 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 01:28:10,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 379 transitions. [2021-11-07 01:28:10,456 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 379 transitions. Word has length 101 [2021-11-07 01:28:10,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:28:10,456 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 379 transitions. [2021-11-07 01:28:10,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 01:28:10,457 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 379 transitions. [2021-11-07 01:28:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 01:28:10,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:28:10,463 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:10,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:28:10,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:28:10,671 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:28:10,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:28:10,671 INFO L85 PathProgramCache]: Analyzing trace with hash 88711003, now seen corresponding path program 1 times [2021-11-07 01:28:10,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:28:10,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795403779] [2021-11-07 01:28:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:28:10,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:28:10,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:28:10,675 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:28:10,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c74a06-e4c8-41b0-a51e-e569b3b39b2c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:32:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:27,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 1933 conjuncts, 197 conjunts are in the unsatisfiable core [2021-11-07 01:32:27,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:29,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:29,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:29,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:29,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:29,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:29,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:29,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 29 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 95 [2021-11-07 01:32:32,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,641 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:32,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,667 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:32,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:32,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,719 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:32,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:32,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:32,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:32,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:33,199 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-07 01:32:33,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 50 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 519 treesize of output 343 [2021-11-07 01:32:36,768 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 01:32:36,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:37,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:37,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1077796 [2021-11-07 01:34:57,895 WARN L207 SmtUtils]: Spent 6.18 s on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2021-11-07 01:34:57,895 INFO L354 Elim1Store]: treesize reduction 57, result has 49.1 percent of original size [2021-11-07 01:34:57,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 9532 treesize of output 9338