./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs --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 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:03:07,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:03:07,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:03:07,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:03:07,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:03:07,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:03:07,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:03:07,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:03:07,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:03:07,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:03:07,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:03:07,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:03:07,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:03:07,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:03:07,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:03:07,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:03:07,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:03:07,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:03:07,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:03:07,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:03:07,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:03:07,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:03:07,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:03:07,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:03:07,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:03:07,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:03:07,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:03:07,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:03:07,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:03:07,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:03:07,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:03:07,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:03:07,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:03:07,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:03:07,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:03:07,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:03:07,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:03:07,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:03:07,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:03:07,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:03:07,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:03:07,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:03:07,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:03:07,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:03:07,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:03:07,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:03:07,907 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:03:07,907 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:03:07,907 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:03:07,908 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:03:07,908 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:03:07,908 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:03:07,910 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:03:07,910 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:03:07,910 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:03:07,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:03:07,911 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:03:07,911 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:03:07,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:03:07,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:03:07,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:03:07,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:03:07,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:03:07,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:03:07,914 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:03:07,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:03:07,914 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:03:07,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:03:07,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:03:07,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:03:07,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:03:07,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:03:07,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:03:07,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:03:07,919 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:03:07,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:03:07,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:03:07,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:03:07,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:03:07,920 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-11-19 15:03:08,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:03:08,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:03:08,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:03:08,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:03:08,288 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:03:08,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-19 15:03:08,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/ecb1cda99/ae59c369ebb04faabb5d949561836500/FLAG8752c329d [2021-11-19 15:03:09,365 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:03:09,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-19 15:03:09,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/ecb1cda99/ae59c369ebb04faabb5d949561836500/FLAG8752c329d [2021-11-19 15:03:09,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/ecb1cda99/ae59c369ebb04faabb5d949561836500 [2021-11-19 15:03:09,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:03:09,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:03:09,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:03:09,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:03:09,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:03:09,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:03:09" (1/1) ... [2021-11-19 15:03:09,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ce30d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:09, skipping insertion in model container [2021-11-19 15:03:09,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:03:09" (1/1) ... [2021-11-19 15:03:09,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:03:09,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:03:10,275 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-19 15:03:10,282 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-19 15:03:10,309 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:03:10,315 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:03:11,421 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,427 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,427 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,428 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,429 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,443 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,444 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,446 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,447 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:11,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:03:11,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:03:11,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:03:11,922 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:03:11,928 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:03:11,932 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:03:11,933 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:03:11,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:03:11,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:03:11,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:03:12,119 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:03:12,258 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:12,259 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:12,373 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:03:12,467 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) [2021-11-19 15:03:12,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7630e464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:12, skipping insertion in model container [2021-11-19 15:03:12,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:03:12,469 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:03:12,472 INFO L158 Benchmark]: Toolchain (without parser) took 2648.03ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 55.7MB in the beginning and 81.6MB in the end (delta: -26.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-19 15:03:12,473 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 51.0MB in the beginning and 50.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:03:12,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2642.86ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 55.5MB in the beginning and 81.6MB in the end (delta: -26.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-19 15:03:12,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 51.0MB in the beginning and 50.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2642.86ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 55.5MB in the beginning and 81.6MB in the end (delta: -26.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6984]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs --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 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:03:14,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:03:14,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:03:15,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:03:15,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:03:15,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:03:15,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:03:15,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:03:15,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:03:15,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:03:15,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:03:15,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:03:15,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:03:15,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:03:15,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:03:15,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:03:15,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:03:15,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:03:15,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:03:15,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:03:15,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:03:15,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:03:15,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:03:15,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:03:15,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:03:15,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:03:15,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:03:15,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:03:15,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:03:15,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:03:15,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:03:15,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:03:15,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:03:15,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:03:15,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:03:15,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:03:15,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:03:15,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:03:15,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:03:15,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:03:15,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:03:15,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:03:15,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:03:15,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:03:15,182 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:03:15,183 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:03:15,183 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:03:15,183 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:03:15,183 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:03:15,184 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:03:15,184 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:03:15,184 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:03:15,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:03:15,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:03:15,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:03:15,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:03:15,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:03:15,188 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:03:15,188 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:03:15,188 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:03:15,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:03:15,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:03:15,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:03:15,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:03:15,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:03:15,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:03:15,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:03:15,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:03:15,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:03:15,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:03:15,191 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:03:15,191 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:03:15,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:03:15,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:03:15,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:03:15,192 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-11-19 15:03:15,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:03:15,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:03:15,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:03:15,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:03:15,704 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:03:15,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-19 15:03:15,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/361c91e94/f9fbc928fa7142bda818d3b2f4d1aa7b/FLAG840a9a9b8 [2021-11-19 15:03:16,833 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:03:16,834 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-19 15:03:16,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/361c91e94/f9fbc928fa7142bda818d3b2f4d1aa7b/FLAG840a9a9b8 [2021-11-19 15:03:17,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/data/361c91e94/f9fbc928fa7142bda818d3b2f4d1aa7b [2021-11-19 15:03:17,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:03:17,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:03:17,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:03:17,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:03:17,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:03:17,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:03:17" (1/1) ... [2021-11-19 15:03:17,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621b5b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:17, skipping insertion in model container [2021-11-19 15:03:17,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:03:17" (1/1) ... [2021-11-19 15:03:17,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:03:17,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:03:17,726 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-19 15:03:17,737 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-19 15:03:17,774 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:03:17,783 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:03:19,025 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,026 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,026 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,027 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,029 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,045 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,046 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,048 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,049 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:03:19,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:03:19,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:03:19,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:03:19,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:03:19,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:03:19,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:03:19,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:03:19,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:03:19,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:03:19,794 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:03:19,884 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,885 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:19,974 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:03:20,057 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:03:20,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:03:20,151 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-19 15:03:20,151 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-19 15:03:20,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:03:20,156 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:03:20,221 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,222 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,222 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,225 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,226 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,238 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,239 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,242 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,243 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:03:20,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:03:20,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:03:20,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:03:20,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:03:20,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:03:20,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:03:20,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:03:20,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:03:20,348 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:03:20,397 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:03:20,507 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,507 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,547 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:03:20,611 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:03:20,640 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-19 15:03:20,640 WARN L230 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_80324fa6-c5d9-40e7-b1af-bde7d953f398/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-19 15:03:20,642 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:03:20,643 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:03:20,697 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,697 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,698 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,698 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,699 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,706 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,707 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,708 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,709 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:03:20,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:03:20,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:03:20,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:03:20,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:03:20,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:03:20,749 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:03:20,749 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:03:20,750 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:03:20,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:03:20,804 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:03:20,859 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,860 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:03:20,896 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:03:21,307 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:03:21,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21 WrapperNode [2021-11-19 15:03:21,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:03:21,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:03:21,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:03:21,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:03:21,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,634 INFO L137 Inliner]: procedures = 712, calls = 2498, calls flagged for inlining = 54, calls inlined = 5, statements flattened = 775 [2021-11-19 15:03:21,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:03:21,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:03:21,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:03:21,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:03:21,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:03:21,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:03:21,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:03:21,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:03:21,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (1/1) ... [2021-11-19 15:03:21,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:03:21,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:03:21,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:03:21,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:03:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-19 15:03:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-19 15:03:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:03:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 15:03:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 15:03:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:03:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:03:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-19 15:03:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-19 15:03:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 15:03:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 15:03:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 15:03:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 15:03:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:03:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:03:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:03:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:03:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:03:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 15:03:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 15:03:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:03:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-19 15:03:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-19 15:03:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:03:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:03:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-19 15:03:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-19 15:03:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:03:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:03:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:03:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:03:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-19 15:03:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-19 15:03:22,172 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:03:22,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:03:26,824 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:03:26,836 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:03:26,837 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:03:26,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:03:26 BoogieIcfgContainer [2021-11-19 15:03:26,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:03:26,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:03:26,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:03:26,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:03:26,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:03:17" (1/3) ... [2021-11-19 15:03:26,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c38a795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:03:26, skipping insertion in model container [2021-11-19 15:03:26,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:21" (2/3) ... [2021-11-19 15:03:26,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c38a795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:03:26, skipping insertion in model container [2021-11-19 15:03:26,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:03:26" (3/3) ... [2021-11-19 15:03:26,865 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_harness.i [2021-11-19 15:03:26,872 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:03:26,872 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:03:26,947 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:03:26,954 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 [2021-11-19 15:03:26,955 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:03:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 68 states have internal predecessors, (83), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 15:03:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 15:03:26,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:26,991 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:26,992 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:03:26,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:26,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1013294361, now seen corresponding path program 1 times [2021-11-19 15:03:27,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:27,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953762210] [2021-11-19 15:03:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:27,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:27,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:27,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:27,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:03:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:03:27,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 15:03:27,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:28,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 15:03:28,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 15:03:28,198 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:03:28,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953762210] [2021-11-19 15:03:28,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953762210] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:03:28,199 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:03:28,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 15:03:28,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074514911] [2021-11-19 15:03:28,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:03:28,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 15:03:28,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:03:28,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 15:03:28,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:03:28,238 INFO L87 Difference]: Start difference. First operand has 99 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 68 states have internal predecessors, (83), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 15:03:28,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:28,275 INFO L93 Difference]: Finished difference Result 193 states and 252 transitions. [2021-11-19 15:03:28,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 15:03:28,282 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2021-11-19 15:03:28,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:28,301 INFO L225 Difference]: With dead ends: 193 [2021-11-19 15:03:28,301 INFO L226 Difference]: Without dead ends: 93 [2021-11-19 15:03:28,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:03:28,313 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:28,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:03:28,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-19 15:03:28,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-19 15:03:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 63 states have internal predecessors, (75), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 15:03:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2021-11-19 15:03:28,399 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 31 [2021-11-19 15:03:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:28,401 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2021-11-19 15:03:28,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 15:03:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2021-11-19 15:03:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 15:03:28,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:28,406 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:28,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:28,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:03:28,626 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:03:28,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1912179751, now seen corresponding path program 1 times [2021-11-19 15:03:28,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:28,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009468597] [2021-11-19 15:03:28,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:28,630 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:28,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:28,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:28,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:03:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:03:29,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:03:29,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:29,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:29,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:29,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:03:29,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009468597] [2021-11-19 15:03:29,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009468597] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:03:29,759 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:03:29,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 15:03:29,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759573443] [2021-11-19 15:03:29,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:03:29,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:03:29,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:03:29,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:03:29,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:03:29,761 INFO L87 Difference]: Start difference. First operand 93 states and 114 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 15:03:31,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:33,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:35,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:37,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:37,207 INFO L93 Difference]: Finished difference Result 147 states and 189 transitions. [2021-11-19 15:03:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:03:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2021-11-19 15:03:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:37,237 INFO L225 Difference]: With dead ends: 147 [2021-11-19 15:03:37,237 INFO L226 Difference]: Without dead ends: 110 [2021-11-19 15:03:37,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:03:37,239 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 9 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:37,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 340 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-19 15:03:37,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-19 15:03:37,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 96. [2021-11-19 15:03:37,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 65 states have (on average 1.2) internal successors, (78), 66 states have internal predecessors, (78), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 15:03:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2021-11-19 15:03:37,266 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 31 [2021-11-19 15:03:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:37,266 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2021-11-19 15:03:37,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 15:03:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2021-11-19 15:03:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 15:03:37,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:37,268 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:37,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:37,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:03:37,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:03:37,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:37,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2124622107, now seen corresponding path program 1 times [2021-11-19 15:03:37,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:37,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223225726] [2021-11-19 15:03:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:37,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:37,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:37,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:37,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:03:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:03:38,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:03:38,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:38,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:38,797 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:03:38,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223225726] [2021-11-19 15:03:38,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223225726] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:03:38,797 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:03:38,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 15:03:38,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013029763] [2021-11-19 15:03:38,798 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:03:38,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:03:38,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:03:38,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:03:38,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:03:38,800 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 15:03:40,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:42,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:42,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:42,650 INFO L93 Difference]: Finished difference Result 134 states and 166 transitions. [2021-11-19 15:03:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:03:42,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2021-11-19 15:03:42,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:42,654 INFO L225 Difference]: With dead ends: 134 [2021-11-19 15:03:42,655 INFO L226 Difference]: Without dead ends: 96 [2021-11-19 15:03:42,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:03:42,656 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 46 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:42,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 464 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-19 15:03:42,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-19 15:03:42,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-19 15:03:42,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 15:03:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2021-11-19 15:03:42,672 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 31 [2021-11-19 15:03:42,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:42,672 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2021-11-19 15:03:42,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 15:03:42,673 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2021-11-19 15:03:42,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-19 15:03:42,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:42,675 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:42,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:42,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:03:42,890 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:03:42,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:42,891 INFO L85 PathProgramCache]: Analyzing trace with hash 966724818, now seen corresponding path program 1 times [2021-11-19 15:03:42,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:42,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911390928] [2021-11-19 15:03:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:42,893 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:42,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:42,894 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:42,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:03:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:03:43,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:03:43,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:43,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:44,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:03:44,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911390928] [2021-11-19 15:03:44,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911390928] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:03:44,027 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:03:44,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 15:03:44,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650226685] [2021-11-19 15:03:44,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:03:44,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:03:44,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:03:44,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:03:44,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:03:44,029 INFO L87 Difference]: Start difference. First operand 96 states and 116 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:03:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:44,110 INFO L93 Difference]: Finished difference Result 141 states and 176 transitions. [2021-11-19 15:03:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:03:44,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2021-11-19 15:03:44,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:44,113 INFO L225 Difference]: With dead ends: 141 [2021-11-19 15:03:44,113 INFO L226 Difference]: Without dead ends: 106 [2021-11-19 15:03:44,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:03:44,115 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 29 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:44,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 320 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:03:44,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-19 15:03:44,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2021-11-19 15:03:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 15:03:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2021-11-19 15:03:44,129 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 37 [2021-11-19 15:03:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:44,130 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2021-11-19 15:03:44,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:03:44,131 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2021-11-19 15:03:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-19 15:03:44,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:44,133 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:44,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:44,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:03:44,346 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:03:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash 265660240, now seen corresponding path program 1 times [2021-11-19 15:03:44,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:44,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093252812] [2021-11-19 15:03:44,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:44,350 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:44,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:44,352 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:44,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:03:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:03:45,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:03:45,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:45,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:45,683 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:03:45,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093252812] [2021-11-19 15:03:45,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093252812] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:03:45,683 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:03:45,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-19 15:03:45,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953486787] [2021-11-19 15:03:45,684 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:03:45,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:03:45,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:03:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:03:45,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:03:45,686 INFO L87 Difference]: Start difference. First operand 98 states and 118 transitions. Second operand has 12 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 15:03:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:45,873 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2021-11-19 15:03:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:03:45,874 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 37 [2021-11-19 15:03:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:45,877 INFO L225 Difference]: With dead ends: 110 [2021-11-19 15:03:45,878 INFO L226 Difference]: Without dead ends: 108 [2021-11-19 15:03:45,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:03:45,879 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 25 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:45,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 838 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:03:45,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-19 15:03:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2021-11-19 15:03:45,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 75 states have internal predecessors, (85), 21 states have call successors, (21), 11 states have call predecessors, (21), 12 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-19 15:03:45,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2021-11-19 15:03:45,895 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 37 [2021-11-19 15:03:45,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:45,896 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2021-11-19 15:03:45,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 15:03:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2021-11-19 15:03:45,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 15:03:45,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:45,899 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:45,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:46,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:03:46,126 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:03:46,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:46,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1062822234, now seen corresponding path program 1 times [2021-11-19 15:03:46,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:46,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120607026] [2021-11-19 15:03:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:46,129 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:46,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:46,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:03:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:03:46,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:03:46,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:47,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:03:48,275 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:03:48,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120607026] [2021-11-19 15:03:48,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120607026] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:03:48,276 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:03:48,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 15:03:48,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742980191] [2021-11-19 15:03:48,276 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:03:48,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:03:48,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:03:48,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:03:48,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:03:48,278 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:03:50,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:52,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:54,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:56,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:03:57,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:57,176 INFO L93 Difference]: Finished difference Result 175 states and 216 transitions. [2021-11-19 15:03:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:03:57,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2021-11-19 15:03:57,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:57,181 INFO L225 Difference]: With dead ends: 175 [2021-11-19 15:03:57,181 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 15:03:57,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:03:57,182 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 65 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:57,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 528 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 3 Unknown, 26 Unchecked, 8.6s Time] [2021-11-19 15:03:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 15:03:57,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2021-11-19 15:03:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 80 states have (on average 1.175) internal successors, (94), 82 states have internal predecessors, (94), 21 states have call successors, (21), 11 states have call predecessors, (21), 12 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-19 15:03:57,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2021-11-19 15:03:57,201 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 41 [2021-11-19 15:03:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:57,202 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2021-11-19 15:03:57,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:03:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2021-11-19 15:03:57,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 15:03:57,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:57,205 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:57,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:57,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:03:57,418 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:03:57,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:57,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1320987672, now seen corresponding path program 1 times [2021-11-19 15:03:57,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:03:57,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616147750] [2021-11-19 15:03:57,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:57,421 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:03:57,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:03:57,422 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:03:57,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:04:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:00,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 15:04:00,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:00,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:00,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:00,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:00,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:00,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:00,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:00,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:04:00,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:00,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 159 [2021-11-19 15:04:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:04:10,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:14,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:14,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:14,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:14,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:14,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:14,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:14,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:04:15,778 INFO L354 Elim1Store]: treesize reduction 9046, result has 0.0 percent of original size [2021-11-19 15:04:15,779 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 16 case distinctions, treesize of input 178 treesize of output 1 [2021-11-19 15:04:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:04:15,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:04:15,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616147750] [2021-11-19 15:04:15,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616147750] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:15,828 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:15,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2021-11-19 15:04:15,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407836693] [2021-11-19 15:04:15,828 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:15,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 15:04:15,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:04:15,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 15:04:15,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:04:15,830 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 15 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:04:17,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:04:19,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:04:21,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:04:23,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:04:25,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:04:26,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:04:28,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:04:31,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:31,270 INFO L93 Difference]: Finished difference Result 199 states and 244 transitions. [2021-11-19 15:04:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 15:04:31,273 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 41 [2021-11-19 15:04:31,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:31,275 INFO L225 Difference]: With dead ends: 199 [2021-11-19 15:04:31,276 INFO L226 Difference]: Without dead ends: 146 [2021-11-19 15:04:31,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:04:31,278 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 97 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 12 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:31,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 866 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 78 Invalid, 4 Unknown, 43 Unchecked, 13.1s Time] [2021-11-19 15:04:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-19 15:04:31,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 132. [2021-11-19 15:04:31,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 97 states have (on average 1.175257731958763) internal successors, (114), 99 states have internal predecessors, (114), 21 states have call successors, (21), 12 states have call predecessors, (21), 13 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2021-11-19 15:04:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2021-11-19 15:04:31,296 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 41 [2021-11-19 15:04:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:31,296 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2021-11-19 15:04:31,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:04:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2021-11-19 15:04:31,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 15:04:31,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:31,300 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:31,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:31,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:04:31,514 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:31,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:31,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1694115946, now seen corresponding path program 1 times [2021-11-19 15:04:31,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:04:31,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334439735] [2021-11-19 15:04:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:31,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:04:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:04:31,518 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:04:31,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 15:05:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:13,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:05:13,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:13,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:05:13,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:05:13,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:13,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 498 [2021-11-19 15:05:13,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:13,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1037 [2021-11-19 15:05:13,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 1037 treesize of output 1004 [2021-11-19 15:05:13,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:13,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,495 INFO L244 Elim1Store]: Index analysis took 309 ms [2021-11-19 15:05:14,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 153 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 164 [2021-11-19 15:05:14,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:14,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 498 [2021-11-19 15:05:14,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:14,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1037 [2021-11-19 15:05:14,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 1037 treesize of output 1004 [2021-11-19 15:05:14,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:14,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:15,355 INFO L244 Elim1Store]: Index analysis took 446 ms [2021-11-19 15:05:15,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 153 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 164 [2021-11-19 15:05:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:05:16,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:18,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:18,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 703 [2021-11-19 15:05:18,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:18,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1248 [2021-11-19 15:05:18,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:18,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1541 [2021-11-19 15:05:18,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:05:18,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2086 [2021-11-19 15:05:19,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:05:19,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:19,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334439735] [2021-11-19 15:05:19,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334439735] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:19,576 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:19,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 8] imperfect sequences [] total 17 [2021-11-19 15:05:19,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869010499] [2021-11-19 15:05:19,576 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:19,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 15:05:19,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:19,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 15:05:19,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:05:19,578 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:05:21,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:23,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:25,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:27,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:29,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:32,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:34,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:36,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:05:36,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:36,442 INFO L93 Difference]: Finished difference Result 245 states and 308 transitions. [2021-11-19 15:05:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 15:05:36,444 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 41 [2021-11-19 15:05:36,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:36,447 INFO L225 Difference]: With dead ends: 245 [2021-11-19 15:05:36,447 INFO L226 Difference]: Without dead ends: 178 [2021-11-19 15:05:36,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2021-11-19 15:05:36,448 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 126 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 31 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:36,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1207 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 107 Invalid, 6 Unknown, 112 Unchecked, 16.6s Time] [2021-11-19 15:05:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-19 15:05:36,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 153. [2021-11-19 15:05:36,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 116 states have (on average 1.1982758620689655) internal successors, (139), 119 states have internal predecessors, (139), 22 states have call successors, (22), 13 states have call predecessors, (22), 14 states have return successors, (27), 20 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-19 15:05:36,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2021-11-19 15:05:36,472 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 41 [2021-11-19 15:05:36,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:36,473 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2021-11-19 15:05:36,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:05:36,473 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2021-11-19 15:05:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 15:05:36,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:36,475 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:36,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 15:05:36,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:05:36,690 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:05:36,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:36,691 INFO L85 PathProgramCache]: Analyzing trace with hash -525525668, now seen corresponding path program 1 times [2021-11-19 15:05:36,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:05:36,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165902904] [2021-11-19 15:05:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:36,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:05:36,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:05:36,693 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:05:36,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 15:05:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:40,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 15:05:40,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:40,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,456 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,456 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:05:40,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:40,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 151 [2021-11-19 15:05:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:05:48,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:05:54,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:54,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:54,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:54,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:54,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:54,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:54,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:05:55,863 INFO L354 Elim1Store]: treesize reduction 9046, result has 0.0 percent of original size [2021-11-19 15:05:55,863 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 16 case distinctions, treesize of input 305 treesize of output 1 [2021-11-19 15:05:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:05:55,906 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:05:55,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165902904] [2021-11-19 15:05:55,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165902904] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:55,907 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:55,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 9] imperfect sequences [] total 20 [2021-11-19 15:05:55,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966015760] [2021-11-19 15:05:55,907 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:55,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-19 15:05:55,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:05:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-19 15:05:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-11-19 15:05:55,909 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand has 20 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 19 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:05:58,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:00,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:02,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:04,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:06,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:09,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:11,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:17,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:19,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:21,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:23,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:25,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:25,077 INFO L93 Difference]: Finished difference Result 271 states and 347 transitions. [2021-11-19 15:06:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 15:06:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 19 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 41 [2021-11-19 15:06:25,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:25,082 INFO L225 Difference]: With dead ends: 271 [2021-11-19 15:06:25,082 INFO L226 Difference]: Without dead ends: 200 [2021-11-19 15:06:25,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2021-11-19 15:06:25,085 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 157 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 49 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:25,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 1001 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 230 Invalid, 11 Unknown, 74 Unchecked, 27.5s Time] [2021-11-19 15:06:25,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-19 15:06:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 163. [2021-11-19 15:06:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 125 states have (on average 1.2) internal successors, (150), 129 states have internal predecessors, (150), 22 states have call successors, (22), 13 states have call predecessors, (22), 15 states have return successors, (28), 20 states have call predecessors, (28), 21 states have call successors, (28) [2021-11-19 15:06:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 200 transitions. [2021-11-19 15:06:25,105 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 200 transitions. Word has length 41 [2021-11-19 15:06:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:25,105 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 200 transitions. [2021-11-19 15:06:25,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 19 states have internal predecessors, (49), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:06:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 200 transitions. [2021-11-19 15:06:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 15:06:25,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:25,108 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:25,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-19 15:06:25,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:25,330 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:06:25,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash -267360230, now seen corresponding path program 1 times [2021-11-19 15:06:25,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:25,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744144600] [2021-11-19 15:06:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:25,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:25,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:25,338 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:25,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 15:06:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:26,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:06:26,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:06:26,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:06:27,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:27,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744144600] [2021-11-19 15:06:27,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744144600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:27,085 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:27,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 15:06:27,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361902955] [2021-11-19 15:06:27,086 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:27,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:06:27,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:27,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:06:27,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:06:27,087 INFO L87 Difference]: Start difference. First operand 163 states and 200 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:06:29,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:31,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:32,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:34,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:36,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:37,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:37,154 INFO L93 Difference]: Finished difference Result 258 states and 323 transitions. [2021-11-19 15:06:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:06:37,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2021-11-19 15:06:37,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:37,160 INFO L225 Difference]: With dead ends: 258 [2021-11-19 15:06:37,160 INFO L226 Difference]: Without dead ends: 185 [2021-11-19 15:06:37,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:06:37,162 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 28 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:37,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 534 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2021-11-19 15:06:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-19 15:06:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 154. [2021-11-19 15:06:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.170940170940171) internal successors, (137), 120 states have internal predecessors, (137), 22 states have call successors, (22), 13 states have call predecessors, (22), 14 states have return successors, (27), 20 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-19 15:06:37,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 186 transitions. [2021-11-19 15:06:37,181 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 186 transitions. Word has length 41 [2021-11-19 15:06:37,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:37,182 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 186 transitions. [2021-11-19 15:06:37,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:06:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 186 transitions. [2021-11-19 15:06:37,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 15:06:37,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:37,184 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:37,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:37,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:37,406 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:06:37,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1989861315, now seen corresponding path program 1 times [2021-11-19 15:06:37,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:37,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944742322] [2021-11-19 15:06:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:37,409 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:37,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:37,409 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:37,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 15:06:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:38,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:06:38,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:06:38,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:06:39,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:39,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944742322] [2021-11-19 15:06:39,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944742322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:39,567 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:39,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-19 15:06:39,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5141046] [2021-11-19 15:06:39,568 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:39,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:06:39,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:39,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:06:39,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:06:39,570 INFO L87 Difference]: Start difference. First operand 154 states and 186 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:06:41,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:43,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:45,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:47,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:48,930 INFO L93 Difference]: Finished difference Result 243 states and 297 transitions. [2021-11-19 15:06:48,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:06:48,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2021-11-19 15:06:48,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:48,935 INFO L225 Difference]: With dead ends: 243 [2021-11-19 15:06:48,935 INFO L226 Difference]: Without dead ends: 174 [2021-11-19 15:06:48,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:06:48,936 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 57 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:48,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 615 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 4 Unknown, 25 Unchecked, 8.8s Time] [2021-11-19 15:06:48,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-19 15:06:48,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 155. [2021-11-19 15:06:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 118 states have (on average 1.152542372881356) internal successors, (136), 121 states have internal predecessors, (136), 22 states have call successors, (22), 13 states have call predecessors, (22), 14 states have return successors, (27), 20 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-19 15:06:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2021-11-19 15:06:48,951 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 43 [2021-11-19 15:06:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:48,952 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2021-11-19 15:06:48,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 15:06:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2021-11-19 15:06:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 15:06:48,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:48,954 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:48,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:49,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:49,158 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:06:49,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:49,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1627279489, now seen corresponding path program 1 times [2021-11-19 15:06:49,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:49,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135066021] [2021-11-19 15:06:49,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:49,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:49,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:49,162 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:49,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 15:06:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:49,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:49,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:50,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:06:50,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:06:50,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:50,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135066021] [2021-11-19 15:06:50,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135066021] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:50,568 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:50,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 14 [2021-11-19 15:06:50,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351246143] [2021-11-19 15:06:50,568 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:50,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 15:06:50,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:50,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 15:06:50,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:06:50,570 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand has 14 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 15:06:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:50,953 INFO L93 Difference]: Finished difference Result 175 states and 208 transitions. [2021-11-19 15:06:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 15:06:50,954 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2021-11-19 15:06:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:50,956 INFO L225 Difference]: With dead ends: 175 [2021-11-19 15:06:50,956 INFO L226 Difference]: Without dead ends: 173 [2021-11-19 15:06:50,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-11-19 15:06:50,957 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 31 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:50,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 1152 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:06:50,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-19 15:06:50,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 163. [2021-11-19 15:06:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 125 states have (on average 1.144) internal successors, (143), 129 states have internal predecessors, (143), 22 states have call successors, (22), 13 states have call predecessors, (22), 15 states have return successors, (29), 20 states have call predecessors, (29), 21 states have call successors, (29) [2021-11-19 15:06:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 194 transitions. [2021-11-19 15:06:50,975 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 194 transitions. Word has length 43 [2021-11-19 15:06:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:50,976 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 194 transitions. [2021-11-19 15:06:50,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 15:06:50,976 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 194 transitions. [2021-11-19 15:06:50,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 15:06:50,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:50,978 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:51,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:51,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:51,193 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:06:51,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:51,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1966623229, now seen corresponding path program 1 times [2021-11-19 15:06:51,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:51,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048013525] [2021-11-19 15:06:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:51,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:51,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:51,197 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:51,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 15:07:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:02,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1357 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 15:07:02,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:03,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,089 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:07:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:03,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 151 [2021-11-19 15:07:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:07:08,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:10,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:10,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:10,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:10,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:10,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:10,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:10,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:07:15,597 INFO L354 Elim1Store]: treesize reduction 8880, result has 1.8 percent of original size [2021-11-19 15:07:15,597 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 16 case distinctions, treesize of input 180 treesize of output 232 [2021-11-19 15:07:15,628 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-19 15:07:15,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 232 treesize of output 90 [2021-11-19 15:07:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:07:15,825 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:15,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048013525] [2021-11-19 15:07:15,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048013525] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:15,825 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:15,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2021-11-19 15:07:15,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641015733] [2021-11-19 15:07:15,826 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:15,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 15:07:15,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:15,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 15:07:15,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:07:15,827 INFO L87 Difference]: Start difference. First operand 163 states and 194 transitions. Second operand has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:07:17,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:07:19,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:07:21,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:07:24,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:07:25,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:25,445 INFO L93 Difference]: Finished difference Result 295 states and 363 transitions. [2021-11-19 15:07:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 15:07:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 43 [2021-11-19 15:07:25,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:25,452 INFO L225 Difference]: With dead ends: 295 [2021-11-19 15:07:25,452 INFO L226 Difference]: Without dead ends: 192 [2021-11-19 15:07:25,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:07:25,454 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 116 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 19 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:25,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1105 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 146 Invalid, 4 Unknown, 92 Unchecked, 9.4s Time] [2021-11-19 15:07:25,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-11-19 15:07:25,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 147. [2021-11-19 15:07:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 110 states have (on average 1.1363636363636365) internal successors, (125), 113 states have internal predecessors, (125), 22 states have call successors, (22), 13 states have call predecessors, (22), 14 states have return successors, (26), 20 states have call predecessors, (26), 21 states have call successors, (26) [2021-11-19 15:07:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 173 transitions. [2021-11-19 15:07:25,475 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 173 transitions. Word has length 43 [2021-11-19 15:07:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:25,475 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 173 transitions. [2021-11-19 15:07:25,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:07:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 173 transitions. [2021-11-19 15:07:25,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-19 15:07:25,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:25,477 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:25,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:25,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:25,690 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:07:25,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash 598348136, now seen corresponding path program 1 times [2021-11-19 15:07:25,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:25,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424504949] [2021-11-19 15:07:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:25,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:25,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:25,695 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:25,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 15:07:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:26,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 15:07:26,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:07:29,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:34,774 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:07:34,774 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 40 treesize of output 43 [2021-11-19 15:07:34,824 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-19 15:07:34,824 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 39 treesize of output 34 [2021-11-19 15:07:37,492 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:07:37,493 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 40 treesize of output 43 [2021-11-19 15:07:37,534 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-19 15:07:37,534 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 39 treesize of output 34 [2021-11-19 15:07:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 15:07:37,717 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:37,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424504949] [2021-11-19 15:07:37,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424504949] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:07:37,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1326113075] [2021-11-19 15:07:37,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:37,718 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:07:37,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:07:37,723 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:07:37,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-19 15:07:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:43,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:07:43,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 15:07:44,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 15:07:44,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1326113075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:44,812 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:07:44,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [18, 16] total 34 [2021-11-19 15:07:44,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638066934] [2021-11-19 15:07:44,813 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:44,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:07:44,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:44,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:07:44,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 15:07:44,815 INFO L87 Difference]: Start difference. First operand 147 states and 173 transitions. Second operand has 12 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-19 15:07:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:45,194 INFO L93 Difference]: Finished difference Result 159 states and 186 transitions. [2021-11-19 15:07:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:07:45,195 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) Word has length 57 [2021-11-19 15:07:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:45,197 INFO L225 Difference]: With dead ends: 159 [2021-11-19 15:07:45,198 INFO L226 Difference]: Without dead ends: 157 [2021-11-19 15:07:45,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 190 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=112, Invalid=1148, Unknown=0, NotChecked=0, Total=1260 [2021-11-19 15:07:45,200 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 23 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:45,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 963 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:07:45,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-19 15:07:45,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2021-11-19 15:07:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 116 states have (on average 1.1293103448275863) internal successors, (131), 120 states have internal predecessors, (131), 23 states have call successors, (23), 14 states have call predecessors, (23), 16 states have return successors, (29), 21 states have call predecessors, (29), 22 states have call successors, (29) [2021-11-19 15:07:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2021-11-19 15:07:45,219 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 57 [2021-11-19 15:07:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:45,220 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2021-11-19 15:07:45,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-19 15:07:45,220 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2021-11-19 15:07:45,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 15:07:45,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:45,222 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:45,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:45,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:45,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:45,632 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:07:45,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:45,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1061292592, now seen corresponding path program 1 times [2021-11-19 15:07:45,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:45,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697838108] [2021-11-19 15:07:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:45,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:45,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:45,637 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:45,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80324fa6-c5d9-40e7-b1af-bde7d953f398/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 15:07:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:46,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:07:46,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 15:07:50,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:08:06,755 WARN L227 SmtUtils]: Spent 13.12s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 15:08:06,760 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-19 15:08:06,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771